W202 Rear Indicator

[Bunny55]

If I had any hair left, this problem would have me pulling it out.

Year 2000 W202 saloon.

Nearside rear indicator is intermittent (no jokes please).

I replaced the bulb and it lasted a day.

Now to fix the problem I remove bulb, refit bulb, disconnect wiring from lamp cluster, reconnect and the indicator will work for a day or so and then pack up.

I've read other posts about cleaning relays (where is it?) and indicator stalk being faulty, I don't think it's that as it's only the rear nearside bulb.

If it's a dodgy earth, where is the earth bolted?

Thanks

Graham

 

[horgantrevor]

ok the relay is under bonnet the box above the fuses

but it sounds like a bad connection ie;rust i would spray all connection with contact cleaner and then a light spray of 3 in 1 spray

also maybe bad earth as you say ,the earth wires are brown in the mercedes w202 if you remove the left arch trim you will see a screw head with lots of brown wires at that point i would clean it near the rear arch in boot this can get rusty in some w202 that have retractable radio antenna but your should not a face lift but check

 

[Bunny55]

Will check the earth points and report back.

will also spray WD40 and see what happens.

Thanks for the help

 

[Stratman]

If the bulb has ever been replaced that could be the problem, as some bulbs fit better than others. The 'own brand' from a large orange motoring chain store have been known to be a little loose in the socket and cause all sorts of problems, including the melting of headlamp fittings.

 

[KillerHERTZ]

I had a similar problem a few years ago and my garage discovered a bad earth point.

 

[Bunny55]

After checking the earth connection (fine) I removed the light cluster, took all the bulbs out, gave a dose of WD40, let it all dry, reassemble and now 3 days without a problem.

Result, thank you.