CLK 208 Reversing lights

[Sychologist]

Hi, Just joined this group after having had a number of Merc's over the years. I've just bought my latest old girl and she came with a few problems. One being that I have no reversing lights and I keep getting a bulb failure warning on my dash which I assume is related. My local garage need to find a wiring diagram to determine the wiring coming out of the gearbox. Apparently there are about twelve wires but we can't find a diagram anywhere and the workshop manual I downloaded doesn't seem to offer much help that I can understand. Can anyone offer any details about the wiring on the plug please?

Many thanks.

 

[Blobcat]

Hello and welcome,

I’d clean up the bulbs and connectors. They corrode often, which gives the failure warning.

 

[mioba]

Welcome to the forum.

Get a voltmeter across the connectors and loom end to see it its getting voltage. Might need a scratch if showing corrosion to get a reading.

 

[Sychologist]

Thanks for the suggestions. My mechanic has gone through the bulbs (he’s good) so we are back to the gearbox plug question I’m afraid.

 

[mioba]

You never mentioned gbox plug before.

Did your mechanic test the bulb holders or just the bulbs.

 

[RhodieBill]

The Reverse Light Switch is within the Gear Selector Mechanism. Quite a big job, but doable I understand....

 

[Sychologist]

Thank you for the suggestions. I’ll update the thread with the progress as it happens.

 

[Sychologist]

I took out the bulbs and cleaned the bulbs and connectors. I also changed the numberplate bulbs for new ones. I still don’t have reversing lights but the bulb failure warning has disappeared. Hope this is helpful to others.

 

[Sychologist]

The fault was finally traced by an auto electrician to the gearbox plug. I'm afraid I don't have anymore detail but it was six hours worth of work to track it down.