Headlight Washers Blocked.

[greyboy]

Dear All,

My facelift W211 saloon seems to have blocked headlight washers. The wash tank is full and screen washers work ok.

When operated, the washers pop out for a nano-second, do the sweep and go back in. There is a noise from the pump and a few bubbles coming out of the jets.

How would i attempt to unblock the jets or back flush to unblock them?

Regards, Mike.

 

[BTB 500]

Don't know specifically about the 211 but there's usually a pressure valve in the pipe from the reservoir, which stops water siphoning out through the washer jets (which are lower down). Could be this valve is blocked or broken?

 

[greyboy]

Thanks, BTB you are probably on the right track as both washers don't work so it could be something common to both.