{"title":"Screenwash concentrate","description":"\u003ch2 id=\"speakable-headline\"\u003eScreenwash concentrate\u003c\/h2\u003e\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eScreenwash concentrate\u003c\/strong\u003e: screenwash breaks down dirt in the washer system. You dilute the concentrate for the job in hand as the product states; what is in the container and the working solution you mix from it are two different quantities.\u003c\/p\u003e\n\u003cp\u003eApproval for the jets, the paint and the trim next to them is as much part of the choice as the cleaning power.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"\/collections\/sommer-scheibenreiniger-konzentrat\"\u003eSummer screenwash concentrate\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","products":[{"product_id":"sonax-xtreme-scheibenreiniger-1-100-wischwasser-konzentrat","title":"XTREME ScheibenReiniger 1:100 Screenwash Concentrate","description":"\u003ch2\u003eUp to 25 litres of screenwash from a single bottle — SONAX XTREME ScheibenReiniger 1:100 as a super-concentrate\u003c\/h2\u003e\n\n\u003cblockquote\u003e\n  \u003cp\u003e\u003cem\u003eWhat makes SONAX's screenwash super-concentrate different? You dilute it 1:100 with water — a 250 ml bottle gives you up to 25 litres of ready-to-use screenwash that pulls bugs, road grime and film off the glass streak-free.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp\u003eNobody buys screenwash on purpose — you only think about it once the tank runs dry, either miles from home or standing in a DIY store paying over the odds for a 5-litre jug. The \u003cstrong\u003eSONAX XTREME ScheibenReiniger 1:100\u003c\/strong\u003e solves that with unusual efficiency: the super-concentrate in its handy 250 ml bottle goes in at 1:100 — that is 2.5 ml per 250 ml of water, or the other way round, one bottle covers 25 litres of washer fluid. That saves you serious space, weight and money compared with the classic ready-to-use screenwash.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1:100 dilution — one bottle, up to 25 litres.\u003c\/strong\u003e The extreme dilution ratio is the whole point of this product. Next to a 5-litre jug of ready-to-use screenwash, the 1:100 concentrate takes up a fraction of the shelf space and shipping weight. For detailers and vehicle prep businesses that top up washer tanks on customer cars, the 250 ml bottle means compact storage and precise dosing without decanting large volumes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStreak-free vision, no smeary residue.\u003c\/strong\u003e The formula is built to break down completely once it dries — no waxy film, no surfactant smears left on the windscreen after the blades pass. That matters for safety, because a hazy film cuts your field of vision badly the moment you drive into low sun.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCuts through bugs, road grime and salt residue.\u003c\/strong\u003e The active surfactants emulsify bug splatter, greasy exhaust deposits and the road film that builds up on the windscreen. Because the actives are dosed high, that cleaning power still comes through in full even at extreme dilution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eA clear view of the road is not a comfort feature, it is a safety requirement. A dirty windscreen slows your reactions, because shapes and hazards show up later through the haze. It gets worse in the rain, when bug remains and road dust mix with water and the blades smear the lot into a greasy film instead of wiping it away. A capable screenwash that is already working inside the washer bottle stops exactly that: it loosens the dirt before the blade arrives and lets the wiper lay down a clean, smear-free sweep — every single time.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDay-to-day from Detailing1:\u003c\/strong\u003e For the best results, mix the ScheibenReiniger 1:100 straight into the washer bottle: fill the tank with tap water, then add the matching amount of concentrate — for a typical 3-litre tank that is 30 ml. For baked-on bug splatter on the windscreen you can push the concentration up a bit (1:50 to 1:30) — more cleaner then goes to work with every spray-and-wipe. The 250 ml bottle is perfect to grab for the boot on a road trip: it takes up almost no space and carries you through long distances.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eSuper-concentrate technology behind the ScheibenReiniger 1:100 — how it works and why it is formulated this way\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSONAX XTREME ScheibenReiniger 1:100\u003c\/strong\u003e runs a highly concentrated surfactant and cleaner formula that turns into a fully functional washer fluid once you cut it 1:100 with water. The ratio is not arbitrary: the actives are dosed so high that even after a 1:100 dilution there is still enough surfactant, sheeting agent and cleaning substance left to work properly on the windscreen and to flash off with barely any residue.\u003c\/p\u003e\n\n\u003cp\u003eThe streak-free finish comes from sheeting agents (surfactants with hydrophobic behaviour) that spread the water evenly and let it run off in a controlled way. Without them the water would sit on the glass in drops and puddles while you wipe, and dry into smears. The sheeting agents in the ScheibenReiniger 1:100 make sure the wash water spreads thin across the whole pane and dries in one even, smear-free layer.\u003c\/p\u003e\n\n\u003cp\u003eThe super-concentrate logic follows a clear product development principle: the higher the dilution ratio, the less water you ship in the finished product, the smaller the packaging and the less weight there is to transport. With the 1:100 concentrate SONAX brings a format that is already standard in other cleaning categories but is still rare in screenwash — a clear win for high-mileage drivers and for pros who want to free up storage space.\u003c\/p\u003e\n\n\u003cp\u003eFor the hard cases — heavy bug season in summer, salt smear in winter — you can temporarily push the concentration to 1:50 or 1:30. That flexibility, which a ready-to-use product simply cannot give you, lets one bottle of concentrate cover different cleaning intensities and adapt to the season.\u003c\/p\u003e\n\n\u003cp\u003eThe surfactant package in the ScheibenReiniger 1:100 is designed for material compatibility. The ingredients are picked so that the rubber on the wiper blades, the plastic wiper frames and the paint edges around the windscreen surround are not attacked. That is not a given with heavily concentrated formulas — cheap own-brand concentrates sometimes lean on aggressive solvents that can make rubber go brittle. SONAX tests material compatibility systematically during development, which makes it a dependable choice for continuous use in commercial fleets too.\u003c\/p\u003e\n\n\u003ch3\u003eUsing the ScheibenReiniger 1:100 properly — dosing, filling and season by season\u003c\/h3\u003e\n\n\u003cp\u003eDosing the 1:100 concentrate is easy to work out: a 3-litre washer tank takes 30 ml of concentrate, a 5-litre tank 50 ml. A simple kitchen syringe or a graduated dosing bottle gets you the exact amount without weighing anything. In real life you can also go slightly heavier without doing any harm — the ScheibenReiniger 1:100 is generously formulated and takes a moderate overdose in its stride.\u003c\/p\u003e\n\n\u003cp\u003eFor summer duty, where bugs and road dirt dominate, stick with the standard 1:100 dilution. If you are driving through bug-heavy country or down dusty back roads, take it up to 1:70 or 1:50. The \u003ca href=\"\/products\/sonax-xtreme-scheibenreiniger-sommer-wischwasser-gebrauchsfertig\"\u003eSONAX XTREME ScheibenReiniger \"Sommer\"\u003c\/a\u003e is the ready-to-use alternative if you would rather not measure anything at all — but the concentrate gives you far more litres for your money.\u003c\/p\u003e\n\n\u003cp\u003eOnce the tank is filled you can check the fresh screenwash straight away: a quick pull on the wiper stalk with a dry screen tells you whether the concentrate spreads evenly and wipes clear. Too little concentrate and you get smears; get it right and the glass comes up evenly clear. That simple check makes dialling in the dose easy.\u003c\/p\u003e\n\n\u003cp\u003eOn the windscreen, which sits in direct sunlight, streak-free performance really counts. Wiper smears catch the light and can cut your field of vision badly — especially into low sun on an early-morning or evening run. A screenwash that leaves nothing behind once it dries is therefore not a comfort feature but a direct contribution to safety.\u003c\/p\u003e\n\n\u003cp\u003eIf you run the concentrate across a car pool or a commercial fleet, the win is that you define one standard dose per vehicle type and simply repeat it. A small card in the store room listing tank volume and the concentrate quantity per model is all it takes — nobody needs any chemistry knowledge, they just follow the numbers. Training effort drops massively compared with more complex care systems.\u003c\/p\u003e\n\n\u003ch3\u003eWhere the ScheibenReiniger 1:100 fits — all-year use and special cases\u003c\/h3\u003e\n\n\u003cp\u003eThe ScheibenReiniger 1:100 concentrate is built for the summer season above all — it is not an antifreeze and it is not suitable for temperatures below freezing. In summer, when bugs, pollen, exhaust deposits and road dust load up the windscreen, the concentrate is the most efficient route to a clear view. For winter, switch to a screenwash with antifreeze.\u003c\/p\u003e\n\n\u003cp\u003eThe 250 ml bottle is ideal for the glovebox or the boot — an emergency top-up that takes up almost no room. On long trips or drives abroad you simply carry the concentrate and buy water on the way instead of hauling heavy jugs of screenwash around. That travel logic is one of the most practical advantages the super-concentrate has over ready-to-use alternatives.\u003c\/p\u003e\n\n\u003cp\u003eFor prep businesses that top up the washer tank on customer cars as part of the service, the 1:100 concentrate is the economical answer: storing a handful of 250 ml bottles takes far less room than keeping 5-litre jugs on the shelf, and the concentrate is easier to dose and portion out.\u003c\/p\u003e\n\n\u003cp\u003eOne use case that often gets overlooked is the motorhome and camper van. Motorhome drivers cover long distances through very different climates, where bug density and dust load vary wildly. The super-concentrate lets you get through a whole travel season on one small bottle — and tune the concentration to the stretch of road you are on. At the same time the compact format saves a lot of space in the limited storage of a motorhome compared with carrying jugs.\u003c\/p\u003e\n\n\u003ch3\u003eScheibenReiniger 1:100 in comparison — concentrate vs ready-to-use and other products\u003c\/h3\u003e\n\n\u003cp\u003eNext to the \u003ca href=\"\/products\/sonax-xtreme-scheibenreiniger-sommer-wischwasser-gebrauchsfertig\"\u003eready-to-use SONAX XTREME ScheibenReiniger \"Sommer\"\u003c\/a\u003e, the 1:100 concentrate wins clearly on price and storage volume. Buy a 5-litre bottle of ready-mixed screenwash and you pay noticeably more per litre than with the concentrate. What the ready-to-use version has on its side is convenience: no mixing, no measuring, straight in the tank.\u003c\/p\u003e\n\n\u003cp\u003eAgainst the cheap screenwash you find on any shelf, the XTREME concentrate stands out through a formula tuned for streak-free drying. Budget products often go light on sheeting agents and leave a visible film on the glass once dry. The SONAX quality standard — in the concentrate version too — makes sure the cleaning power and the streak-free finish survive even extreme dilution.\u003c\/p\u003e\n\n\u003cp\u003eFor cleaning the glass from the outside — wiping the windscreen by hand — the concentrate mixed with water in a spray bottle works well too. A little concentrate in water, laid down with a \u003ca href=\"\/products\/sonax-profiline-microfasertuch-glas-mikrofasertuch\"\u003eSONAX PROFILINE MicrofaserTuch \"Glas\"\u003c\/a\u003e, pulls the film off the glass effectively. For a deeper glass clean and care routine, the \u003ca href=\"\/products\/sonax-xtreme-scheibenklar-glasreiniger\"\u003eSONAX XTREME ScheibenKlar\u003c\/a\u003e is the dedicated glass cleaner.\u003c\/p\u003e\n\n\u003cp\u003eThe price comparison gets really obvious once you look at the cost per litre of ready-to-use fluid: a typical 5-litre jug sells for around EUR 3–5, which works out at EUR 0.60–1.00 per litre. The 250 ml concentrate costs about the same and makes 25 litres — under EUR 0.50 per litre, with a clearly better cleaning result. That argument lands even with drivers who were never looking for a concentrate in the first place.\u003c\/p\u003e\n\n\u003ch3\u003eBuying the SONAX XTREME ScheibenReiniger 1:100 — who the super-concentrate is for\u003c\/h3\u003e\n\n\u003cp\u003eThe super-concentrate is for anyone who wants to buy and store their screenwash sensibly — private drivers who keep a bottle in the glovebox, detailers and prep businesses that top up customer cars as a service, and travellers who would rather not haul ready-mixed screenwash across borders.\u003c\/p\u003e\n\n\u003cp\u003eGetting into the SONAX XTREME glass care line pays off: with the ScheibenReiniger 1:100 as your washer concentrate, the ScheibenKlar as the glass cleaner for hand cleaning outside and the MicrofaserTuch \"Glas\" for a residue-free finish, you have everything you need for a clear view all year round in one compact set. One 250 ml bottle of ScheibenReiniger 1:100 covers a whole summer season under normal use — the kind of supply you never notice until it runs out.\u003c\/p\u003e\n\n\u003cp\u003eIf you want the full picture of the SONAX glass care system: the concentrate covers the everyday wiping, while glass cleaner and glass sealants handle the deeper manual work. Splitting it that way — automatic screenwash cleaning plus manual glass work — keeps your glass permanently clear with minimal effort, without elaborate care protocols or expensive professional treatments. The super-concentrate is the cheapest way into that system.\u003c\/p\u003e","brand":"SONAX","offers":[{"title":"250ml","offer_id":49160881045839,"sku":"D1-SNX-02711410","price":10.49,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/Sonax-XTREME-ScheibenReiniger-1-100-5.png?v=1721514202"},{"product_id":"dr-wack-cw1-100-bio-scheiben-reiniger-scheibenreiniger","title":"CW1:100 \"BIO\" screenwash","description":"\u003ch2 id=\"speakable-headline\"\u003eClear view, made mostly from renewable raw materials\u003c\/h2\u003e\n\u003cblockquote id=\"speakable-summary\"\u003e\u003cp\u003e\u003cem\u003eCW1:100 BIO screenwash is a highly concentrated screenwash made from more than 99 percent natural raw materials. It breaks down glare and smear film for a safe view and is gentle on materials. It's not a ready-to-use cleaner and not an antifreeze — you dilute it before filling.\u003c\/em\u003e\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eCW1:100 BIO screenwash\u003c\/strong\u003e is a screenwash concentrate made from more than 99 percent natural and renewable raw materials. You mix it with water and pour it into the washer fluid reservoir. It clears glare and smear film from the windscreen and contains no animal-derived ingredients and no unnecessary synthetic fragrances or dyes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick work of glare and smear film.\u003c\/strong\u003e The concentrate breaks down the film that dazzles you in low sun or against the light in no time. That gets you a clear, low-streak windscreen again — and a safe view in traffic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGoes a long way as a high concentrate.\u003c\/strong\u003e Because you use it diluted, one bottle covers lots of fills. According to the manufacturer, that saves a lot of packaging and transport compared with ready-mixed screenwash in 5 litre canisters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGentle on materials, with anti-limescale formula.\u003c\/strong\u003e Mild ingredients make it well tolerated and extend the life of your wiper blades. The anti-limescale formula prevents deposits in the reservoir and clogged jets, even with hard water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cblockquote class=\"praxistipp\"\u003e\u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e The most common mistake is pouring the concentrate in neat or under-dosed and then wondering about the streaks. Stick to the mixing ratio on the bottle, and if the reservoir is old and grubby, flush it once with clean water before refilling. That way you actually get the cleaning power you paid for.\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003cp\u003eMix the concentrate with water at the stated ratio and pour the finished solution into the washer fluid reservoir. Thanks to the anti-limescale formula, you can use hard tap water too, without worrying about deposits or clogged jets.\u003c\/p\u003e\n\u003cp\u003eIn winter, combine the concentrate with an antifreeze. The built-in cleaning booster is made for exactly that and boosts the effect in antifreeze screenwash mixes. The product is also suitable for plastic headlight lenses and fan jets.\u003c\/p\u003e\n\u003ch3\u003eLimits\u003c\/h3\u003e\n\u003cp\u003eCW1:100 BIO screenwash is a concentrate, not a ready-to-use product. Without diluting and dosing it properly, you won't get its full performance. It's also not an antifreeze on its own: for winter use, you have to combine it with a suitable antifreeze. For heavily crusted glass or bug remains that have already dried on, cleaning by hand first still makes sense.\u003c\/p\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eThe concentrate suits drivers who care about a clear view while keeping packaging, transport and synthetic additives to a minimum. If you'd rather buy concentrates that go a long way than ready-mixed canisters anyway, and you pay attention to material compatibility, this is the one for you.\u003c\/p\u003e","brand":"Dr. Wack \"CW1:100\"","offers":[{"title":"250ml","offer_id":54707199869263,"sku":"D1-DRW-1760","price":15.99,"currency_code":"EUR","in_stock":true},{"title":"40 ml","offer_id":58086101221711,"sku":"D1-DRW-1761","price":4.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-bio-scheiben-reiniger-scheibenreiniger.png?v=1787867402"},{"product_id":"dr-wack-cw1-100-classic-scheibenreiniger-scheibenreiniger","title":"CW1:100 \"Classic\" screenwash","description":"\u003ch2 id=\"speakable-headline\"\u003eA clear view from one small bottle\u003c\/h2\u003e\n\u003cblockquote id=\"speakable-summary\"\u003e\u003cp\u003e\u003cem\u003eCW1:100 Classic is a high-yield screenwash concentrate from Dr. Wack. Mixed at 1:200, 250 ml make up to 50 litres of cleaning fluid that clears glare and smear film. It isn't a ready-to-use screenwash and contains no antifreeze.\u003c\/em\u003e\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eCW1:100 Classic\u003c\/strong\u003e is a highly dilutable cleaning concentrate for the windscreen washer system. You mix it with water and pour it into the reservoir, where it lifts bug residue, dust and the typical glare film off the windscreen. On paper, the compact 250 ml bottle replaces about 20 bottles of ready-to-use screenwash, saving space and packaging.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGoes a long way.\u003c\/strong\u003e Mixed at 1:200, 250 ml of concentrate make up to 50 litres of cleaning fluid. One bottle lasts for plenty of top-ups, and you don't have to lug heavy jerry cans around in the car.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTackles glare and smear film.\u003c\/strong\u003e The cleaner dissolves the thin film of exhaust fumes, pollen and road dust that dazzles you against the light. The screen comes up clear again instead of just getting wet for a moment and smearing all over again.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKind to materials.\u003c\/strong\u003e The formula is suitable for plastic headlight lenses and fan jets. It doesn't attack these parts and can extend the life of your wiper rubbers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cblockquote class=\"praxistipp\"\u003e\u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e The most common mistake is overdosing in the hope of more cleaning power. Too much concentrate leaves streaks and takes several wipes before the screen is clear again. Stick to 1:200 and only go slightly stronger when there's visibly heavy glare film; you'll get a cleaner result and the bottle lasts longer.\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003cp\u003eMix the concentrate with water at 1:200 and pour it into the washer reservoir; then every press of the washer cleans screen and headlights in one go.\u003c\/p\u003e\n\u003cp\u003eFor normal dosing, that's about 1.25 ml of concentrate to 250 ml of water. With stubborn glare film you can go slightly stronger. After the first fill, give the jets a quick flush so the film lifts evenly and the wipers glide cleanly from the start.\u003c\/p\u003e\n\u003cp\u003eWe've mixed the concentrate at our Nordhorn warehouse for hard-worked windscreens. In practice it pays to keep a small pre-mixed reserve in the boot rather than fiddling with neat concentrate on the road.\u003c\/p\u003e\n\u003ch3\u003eLimits\u003c\/h3\u003e\n\u003cp\u003eCW1:100 Classic is a pure cleaning concentrate and contains no antifreeze. In winter you need to add an antifreeze as well, otherwise the system can freeze. Nor does it replace a thorough hand or glass clean for stuck-on deposits like baked-on bugs or tar; for those, you're better off cleaning the screen directly with a cloth and a suitable glass cleaner.\u003c\/p\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eThe concentrate suits anyone who wants to top up their screenwash economically, compactly and gently on materials, from everyday drivers to thorough DIY detailers. If a clear view without glare film matters to you and you'd rather not haul heavy ready-mix bottles, CW1:100 Classic is spot on.\u003c\/p\u003e","brand":"Dr. Wack \"CW1:100\"","offers":[{"title":"250ml","offer_id":54707200557391,"sku":"D1-DRW-1710","price":12.99,"currency_code":"EUR","in_stock":true},{"title":"25ml","offer_id":54707200590159,"sku":"D1-DRW-1720","price":3.99,"currency_code":"EUR","in_stock":true},{"title":"5 Liter","offer_id":54707200622927,"sku":"D1-DRW-1730","price":103.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-classic-scheibenreiniger-scheibenreiniger.png?v=1787867417"},{"product_id":"dr-wack-cw1-100-super-scheibenreiniger-scheibenreiniger","title":"CW1:100 \"Super\" screenwash concentrate","description":"\u003ch2 id=\"speakable-headline\"\u003eCW1:100 \"Super\" screenwash breaks down smear film — as long as you get the dose right\u003c\/h2\u003e\n\n\u003cblockquote id=\"speakable-summary\"\u003e\n  \u003cp\u003e\u003cem\u003eWhat is CW1:100 \"Super\"? A screenwash concentrate from Dr. Wack that goes into your washer water at 1 to 100 and lifts glare and smear film off the windscreen. Developed for windscreen washer systems and headlight washers. Not an antifreeze: it doesn't lower the freezing point.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003cp id=\"speakable-definition\"\u003e\u003cstrong\u003eDr. Wack CW1:100 \"Super\" screenwash\u003c\/strong\u003e is a concentrate for the windscreen washer system that you dilute at a ratio of 1 to 100. The 1:100 in the name isn't a model code, it's the recipe on the label. One dosing chamber holds 25 millilitres and makes 2.5 litres of ready-to-use washer fluid, so the 250 millilitre bottle makes 25 litres. That's ten dosing chambers per bottle.\u003c\/p\u003e\n\n\u003cp\u003eThe film it goes after isn't a layer of dust. Bug remains, diesel soot, silicone and wax residue build up on the glass as a milky-looking, water-repellent layer. A glass sealant is water-repellent too, but it's built up evenly — it gives you clean beading. Glare film is the opposite: it scatters incoming light instead of letting it through. You'll notice it when every oncoming car dazzles you at night, even though the wipers just went over the glass.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe mixing ratio is in the product name.\u003c\/strong\u003e With the cap slightly unscrewed, squeeze the lower part of the bottle until the dosing chamber is full — that's the whole measuring system. That turns 250 millilitres into 25 litres of washer fluid, and the 5 litre canister into 500 litres.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe anti-limescale formula keeps the fan jet open.\u003c\/strong\u003e It binds the lime in tap water before it can settle in the nozzle opening. In practice: what doesn't crystallise can't clog the opening either, and the spray pattern stays wide instead of lopsided. Auto Bild gave the Super full marks for material compatibility, 15 out of 15.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIn winter the dose doubles, not the frost protection.\u003c\/strong\u003e For antifreeze mixes, Dr. Wack specifies 1 to 50 — four dosing chambers or 100 millilitres per 5 litres of finished mix. The Super doesn't replace antifreeze, it boosts its cleaning power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cblockquote class=\"praxistipp\"\u003e\n  \u003cp\u003e\u003cstrong\u003eDetailing1's tip from the shop:\u003c\/strong\u003e What we see day-to-day: the most common mistake is tipping it into a full reservoir. If you empty the dosing chamber straight into the tank and top up with water, you're not mixing — the concentrate just sits at the bottom. The first sprays foam up over-concentrated, the last ones are almost pure water. In the product information sheet, Dr. Wack recommends mixing the components in a separate container first. Empty 2.5 litre jug, 25 millilitres in, shake, pour — then what you dosed is what reaches the nozzle.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eOne dosing chamber holds 25 millilitres and makes 2.5 litres\u003c\/h3\u003e\n\u003cp\u003eCW1:100 \"Super\" screenwash is dosed at 1 to 100. One dosing chamber holds 25 millilitres of concentrate, making exactly 2.5 litres of ready-to-use fluid for the washer system.\u003c\/p\u003e\n\n\u003cp\u003eDose by feel and you pay twice. Too little concentrate, and the smear film stays as a haze the wipers just spread around. Too much, and the surfactants foam on dry glass, leave streaks and cost you two extra sprays to clear. The dosing chamber takes the guesswork out: unscrew the cap slightly, squeeze the lower part of the bottle until the chamber is full, unscrew the cap, pour in.\u003c\/p\u003e\n\n\u003cp\u003eThe work in the washer water is done by anionic surfactants. These are molecules with one water-loving and one grease-loving end that wedge themselves between the glass and the smear film and lift the film off. For you, that means the wiper doesn't just push the dirt around anymore, it takes it with it. That's exactly why the amount decides the result, not the number of wipes.\u003c\/p\u003e\n\n\u003cp\u003eWith the 40 millilitre single-dose bottle, there's no maths at all. At 1 to 100, 40 millilitres makes 4 litres of washer water, so one dose covers about one reservoir fill on most cars. That bottle lives in the glovebox as a top-up on the road; the bigger pack handles the planned dosing at home.\u003c\/p\u003e\n\n\u003cp\u003eThat the dosing chamber holds exactly 25 millilitres is straight from the product information sheet out of Baar-Ebenhausen. One fill, two and a half litres — that's all the mental arithmetic summer dosing asks of you. In canister format, the same sum looks like this: 5 litres of concentrate make around 500 litres of washer fluid, or 250 litres at winter strength.\u003c\/p\u003e\n\n\u003cp\u003eDr. Wack also says the cleaner extends the life of your wiper blades. There's no way to check that, but the mechanism is plausible: a wiper blade gliding over a loosened film works with less friction than one pushing dry dirt across the glass. The bigger lever, in our view, is never running the blade dry anyway — spray first, then wipe.\u003c\/p\u003e\n\n\u003cp\u003eFrom our own experience: water into the mixing container first, then the concentrate, then shake. The other way round, it foams over when you shake, and whatever ends up in the sink is missing from the tank. What sets the four \u003ca href=\"\/collections\/dr-wack-cw1-100-scheibenreiniger\"\u003escreenwashes in this range\u003c\/a\u003e apart comes down to exactly one number — the mixing ratio.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-super-scheibenreiniger-scheibenreiniger_anwendung.png?v=1787867946\u0026amp;width=1400\" alt=\"Dosing chamber of CW1:100 Super screenwash being emptied into the open washer fluid reservoir\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;border-radius:4px;\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Super boosts your antifreeze — it can't replace it\u003c\/h3\u003e\n\u003cp\u003eCW1:100 \"Super\" screenwash doesn't lower the freezing point. In winter it goes into a finished antifreeze mix on top, dosed at 1 to 50 instead of 1 to 100.\u003c\/p\u003e\n\n\u003cp\u003eThe order is in the product information sheet and still rarely followed: antifreeze concentrate first, then fresh water, then the Super. Four dosing chambers, i.e. 100 millilitres, per 5 litres of finished antifreeze mix. If you put the cleaner into the empty canister first, it only gets mixed in by chance as you fill up.\u003c\/p\u003e\n\n\u003cp\u003eIt gets expensive with antifreeze concentrates rated down to minus 60 degrees. Those must never meet the Super undiluted. Dr. Wack requires you to dilute the concentrate with fresh water to minus 30 degrees at most first, and only then add the cleaner. The sheet doesn't give a reason. We stick to it anyway, because a clogged washer jet in January is no small thing.\u003c\/p\u003e\n\n\u003cp\u003eThe reason tap water is good enough here is the anti-limescale formula. In hard-water areas, calcium is what gradually grows the fine nozzle opening shut over the years. The formula binds it before it can settle — which is why Dr. Wack specifies fresh tap water, not distilled. Day to day, that means you skip the jug from the DIY store and mix at the tap.\u003c\/p\u003e\n\n\u003cp\u003eThe second limit is in front of the windscreen. No washer fluid dissolves dried-on bug shells on the bonnet, grille and headlights, because there's no dwell time — the wiper is on the glass for seconds, not minutes. If the film builds up while you're driving, the Super is the right tool. If the remains dry on while the car is parked, you need an \u003ca href=\"\/products\/dr-wack-cw1-100-insekten-entferner-gel-insektenentferner\"\u003einsect remover that clings as a gel\u003c\/a\u003e on the surface, one that stays put instead of running off.\u003c\/p\u003e\n\n\u003cp\u003eIn issue 22 of 2022, Auto Bild put the Super up against eight other screenwashes. Result: good, grade 2.4, third place out of nine. Full marks of 15 for material compatibility, 56 out of 80 points for pure cleaning power.\u003c\/p\u003e\n\n\u003cp\u003eTranslated: if maximum cleaning power trumps everything for you, there are stronger contenders in the field. If you don't want anything to happen to paint, rubber seals or plastic headlight lenses, you're in the right place — and according to the manufacturer, the formula was developed for exactly those parts.\u003c\/p\u003e\n\n\u003ch3\u003eDose it yourself and you stop paying for water\u003c\/h3\u003e\n\u003cp\u003eA 1:100 concentrate doesn't haul water around. 250 millilitres of CW1:100 \"Super\" screenwash become 25 litres of ready-to-use fluid; the other 24.75 litres come out of the tap at home.\u003c\/p\u003e\n\n\u003cp\u003eWhich pack pays off depends less on the car than on how you drive. If you do lots of motorway miles, you'll empty the washer reservoir much faster in bug season than the rest of the year — that's what the 250 millilitre bottle with dosing chamber is built for. The 40 millilitre single-dose bottle is the glovebox top-up. The 5 litre canister pays off from the second car in the household.\u003c\/p\u003e\n\n\u003cp\u003eA second consumer is listed in the product information sheet and usually gets lost in the windscreen discussion: the headlight washer system. Cars with pop-out washer jets on the headlights draw from the same reservoir. That doesn't change the dosing, but it does change consumption — if you trigger the system regularly in winter, the reservoir empties much faster and you're better off with the canister than the single-dose bottle.\u003c\/p\u003e\n\n\u003cp\u003eIf you want to mix yourself and you've got a tap anyway, the concentrate is the leaner route — on the shelf, in the boot and in the amount of plastic per litre of washer fluid. If you want the canister ready-mixed in the boot because there's no water on the road, grab the \u003ca href=\"\/products\/dr-wack-cw1-100-super-scheibenreiniger-fertig-mix-scheibenreiniger\"\u003eready-to-use pre-mix\u003c\/a\u003e. That's not a ranking, it's a decision about where the water gets added.\u003c\/p\u003e\n\n\u003cp\u003eThe first time round, measuring feels more of a faff than emptying a ready-made jug. That's normal. After two or three fills you've got the hang of it, and the dosing chamber becomes what it is — the measuring cup already built into the bottle.\u003c\/p\u003e\n\n\u003cp\u003eThe tip no label gives you: don't wait for the first frost forecast to switch to winter dosing. If you move to 1 to 50 in October, while late-summer bug remains are still on the glass, you get the double dose exactly when it has the most work to do. And in January the antifreeze mix has long been sitting correctly in the reservoir, instead of being thrown together on the driveway at minus five.\u003c\/p\u003e","brand":"Dr. Wack \"CW1:100\"","offers":[{"title":"250ml","offer_id":54707201835343,"sku":"D1-DRW-1745","price":12.99,"currency_code":"EUR","in_stock":true},{"title":"40 ml","offer_id":54707201868111,"sku":"D1-DRW-1749","price":3.99,"currency_code":"EUR","in_stock":true},{"title":"5 Liter","offer_id":54707201900879,"sku":"D1-DRW-1743","price":126.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/3272\/7375\/files\/dr-wack-cw1-100-super-scheibenreiniger-scheibenreiniger.png?v=1787867479"}],"url":"https:\/\/detiiling1.com\/collections\/wischwasser-konzentrat.oembed","provider":"Detailing1","version":"1.0","type":"link"}