Rear wash blocked - help please

[minerva]

The rear wash on our 4four only emits a dribble. Tried unblocking it, so did MB.
Tube comes from the engine bay and could be kinked or more likely its the washer. But how do I get at it to fit it. MB thinks its not the washers though.

[Thrumbleux]

Re: Rear wash blocked - help please

If its the jet, try poking with a pin.
If its the tube, consider by passing with a new piece and just ignore or remove the old.

[nikb]

Re: Rear wash blocked - help please

remove the rear washer jet, soak in warm water, and then clean out with a pin/compressed air and try the washers whilst there is no jet connected to see if water flows, maybe put a bicycle pump on the pipe and blow the obstruction back down the pipe, sounds like the pump is blocked

[10:45PM]

Re: Rear wash blocked - help please

vinegar

[minerva]

Re: Rear wash blocked - help please

remove the rear washer jet, soak in warm water, and then clean out with a pin/compressed air and try the washers whilst there is no jet connected to see if water flows, maybe put a bicycle pump on the pipe and blow the obstruction back down the pipe, sounds like the pump is blocked

How do I remove the jet - Is it the whole high brake light fitting complete with jet? I tried a pin and MB tried their 'special' tool - didn't work. Still a dribble.
Pump works the front fine. And thats why I can't bypass the problem, because the pipe runs from front to back through the roof lining. Might try an air line next. But think it will have to come out. But how?

[problemchild1976]

Re: Rear wash blocked - help please

Someone on forfour.co.uk there may possibly be someone who has a workshop manual

JJ

[kevskars]

Re: Rear wash blocked - help please

try an air line on it always cleared that way for me :goodlk: