An orange hatchback parked on a country road at sunset with a chevron-marked rescue van ahead of it

Why screenwash and AdBlue don’t mix

The AdBlue system doses a precise solution into the exhaust to clean it. Screenwash contains alcohol and detergents it isn’t made for.

Left in, it can reach the AdBlue pump and injector and bring up emissions warnings. Draining the tank and flushing the system before you drive is the simplest fix.

Signs it has got into the system

  • An AdBlue or emissions warning
  • The engine management light

How we clear the AdBlue system

Usually 30 to 40 minutes once we’re with you.

  1. Drain

    The screenwash and AdBlue mix is drawn out of the AdBlue tank.

  2. Flush

    The AdBlue system is flushed through to clear what’s left.

  3. Refill

    The tank is refilled with fresh AdBlue.

  4. Dispose

    The contaminated fluid is taken away and disposed of properly.

Questions about screenwash in AdBlue

Can I top it up with AdBlue to dilute it?

It’s best not to: the screenwash is still in the system. Leave it, and we’ll drain and flush it.

Can I drive the car?

Call us first and tell us what happened. It’s safest not to drive until the tank has been drained.

How much does screenwash in the AdBlue tank cost to put right?

Call us and tell us what the car is, what went in and roughly how much, and we’ll talk you through the price.

Screenwash in the AdBlue? Call before you drive.

Tell us where the car is. We’ll drain and flush the AdBlue system on the spot.

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