Dr. Wack "CW1:100" CW1:100 "Super" screenwash, ready-to-use 3l

Clear view without mixing, straight from the jerry can

The CW1:100 Super screenwash ready mix is a ready-to-use summer cleaner for the washer reservoir. It clears glare and smear films in a flash and gets rid of bug grime. You don't have to measure or mix anything, but you can stretch it if needed. No antifreeze and no concentrate for diluting.

The CW1:100 Super screenwash ready mix is a ready-to-use screenwash for summer use that goes straight into the washer reservoir with no prep. At its core is a specially developed polymer combination from the Dr. Wack Chemie research lab. It delivers a fast, low-streak view and combines the familiar CW1:100 quality with the convenience of a pre-mixed product.

• Clear view in a flash. The cleaner clears glare and smear films instantly instead of just spreading them across the glass. So your view stays clean and glare-free even with a low sun and oncoming headlights.
• Anti-limescale formula. The formula binds limescale and so prevents clogged washer jets and deposits in the reservoir. Especially with hard tap water, that keeps the fan jets clear for longer and their spray pattern even.
• Tough on bugs, gentle on the system. Stuck-on bug grime comes off quickly, and the cleaner is designed for plastic headlight lenses and fan jets. On top of that, the formula extends the life of your wiper blades.

Detailing1's tip from the shop: With a stubborn bug film, a lot of people just pour in more cleaner and wipe dry straight away. That only smears. You're better off flooding the screen generously, letting the cleaner work for a few seconds and then running the wipers several times. We know it from our own delivery runs in summer: one quick squirt won't cut it on baked-on grime.

How to use

Pour the ready mix neat into the washer reservoir if you want the full effect, or mix it 1:1 with water if quantity matters more to you.

Neat, you get up to 2.8 litres and maximum cleaning power; diluted, up to 5.6 litres. After topping up, run the washers a few times so the cleaner flows through the lines and jets and is ready to go straight away.

Limits

This is a summer cleaner without antifreeze. In sub-zero temperatures the water in the reservoir and lines can freeze, so for winter you need a separate antifreeze product. The ready mix cleans the screen from the outside via the washer fluid; it's not a concentrate for heavy dilution and no substitute for cleaning heavily soiled glass by hand.

Who it's for

The ready mix is made for high-mileage drivers with high standards who want a consistently clear view in summer without measuring out concentrate every time. If clean jets, well-kept wipers and quick top-ups matter to you, this gets you the familiar CW1:100 performance in its most convenient form.

Using it in the washer system

Pour the CW1:100 ready mix neat into the washer reservoir if you want maximum cleaning power (up to 2.8 litres fill volume). If you'd rather have more volume, mix it 1:1 with water to get up to 5.6 litres.

After topping up, run the washers several times so the cleaner flows through the pump, lines and jets. Only then is the whole system filled and you'll have a clear view straight away on your next drive.

With stuck-on bug grime, it helps to flood the screen well and let the wipers run several times, instead of just one quick squirt.