SLK 200 water behind fuel cap cover

[Ducieoldboy]

I have an SLK 200 and water is accumulating behind the fuel filler cap cover. There appears to be a drain hole through a rubber grommet which I have tried poking an electricians fish wire down but without success. Has anyone had this problem and if so do you have any suggestions for clearing it out please?

 

[GP801]

Had the same on our 171 SLK. Poked it with some wire and it all drained away no problem.

 

[Trickythemerc]

Keep trying,maybe a wire coat hanger would be a better thing to use.

 

[Ducieoldboy]

Thanks GP801 and Trickythemerc. I will persevere and see how I go on. I wondered whether it is possible to work from the exit end of the drain tube but I am not sure where that exits underneath.

 

[Trickythemerc]

It probably exits behind the wheel arch liner. I used a long cable tie to clear the drains on the windscreen scuttle panel, if you need something longer a length of curtain wire might be the thing to use.

 

[Ducieoldboy]

Curtain wire sounds like a good idea. I am a bit nervous about using a coat hanger as I may puncture the rubber drain tube with the sharp edges. Thanks. I'll see how I get on.

 

[Belldarr]

Sounds like the drain hole has some kind of blockage - maybe try giving it a blast with an airline if you have access to one?

DB

 

[Ducieoldboy]

I took the SLK to a local MB Garage yesterday and they tried giving the drain hole a blast with a Jet spray but it didn't fix the problem. They also tried a flexi cable (like a curtain wire) but again, they couldn't get this to unblock the drain. I have booked it in with them so they can remove the panelling and try and get to the drain tube and unblock it that way. I will post back the result after its been in (not until 5th May).
Thanks for all suggestions.