Electronic gremlins

[RebelV8]

I have three minor electrical issue's,

The front right and rear left speaker's aren't working, is this likely to be nothing more than a broken / corroded wire or blown speaker?

The intermittent setting of the wiper isn't working but both the other settings are ok, any idea what this could be?

My sunroof has had the fuse removed due to it having a mind of it's own regarding opening, is this likely to be serious?

Thanks in advance

 

[markjay]

About the sunroof... not sure about your car, but most sunroofs will have a reset procedure (similar to the electric windows), but you should check your owners' manual.

From past experience the reset is the first thing to try when the sunroof behaves erratically.

 

[RebelV8]

Great, I'll check the owners manual

Thanks

 

[Dec]

Speakers could be bad connections at back of radio or at the speakers themselves.

The wiper fault is likely to be either the wiper switch failing at the end of the stalk or the N10 relay which controls the intermittent setting.
Does the wiper blade ever fail to park in its usual position at the bottom of the windscreen when the wiper is turned off at the stalk switch or does it ever stop dead in mid sweep of the windscreen?

Also on the sunroof, check fuse 9 in the boot fuse box, make sure it’s clean and tight.

Dec

 

[RebelV8]

Hi Dec

Thanks for the reply, so far the wiper hasn't failed to park in it's usual position at the bottom of the windscreen and hasn't stopped mid sweep either. Where would I find the N10 relay?

I'll check the fuse for the sunroof as soon as I can, I figured that the speaker issue could be the speakers which seems more likely, I'll try and check all the connections as soon as I can as well

Thanks again

 

[Dec]

The N10 relay can be checked here… N10 Relay, Soldering Repair, Wiper - Indicators & Hazards - Rear Window Demister. - Mercedes-Benz Owners' Forums

I kind of think that it’s the wiper switch on the stalk that’s at fault, you can test it here… Post # 16 to #20 here… Wiper issue - Page 2 - Mercedes-Benz Owners' Forums

Make sure you read post # 2 on how to open the stalk switch here… Wiper has started working on it's own - Mercedes-Benz Owners' Forums

Dec

 

[RebelV8]

Thanks, jobs for the weekend then, lol