Help Please! Indicator Problem - Mercedes-Benz Forum

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post #1 of 5 (permalink) Old 04-05-2008, 11:30 AM Thread Starter
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Help Please! Indicator Problem

Hi Guys, I'm new to the forum so 'hello all'

For years my Dad has helped me fix various problems on my many cars so, now that he has retired from repairing them I would like to help him with a problem he has with his.

He recently bought a 2002 Mercedes C220 CDi Automatic but has been having an intermittent problem with the indicators 'reversing' temporarily - so, sometimes when indicating to turn left the right indicator will flash and vice-versa. There don't seem to be any related problems and it doesn't seem to be triggered by any other action - it just does it at random.

Can anyone suggest a possible cause or advise where to start looking? Any help would be greatly appreciated
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post #2 of 5 (permalink) Old 04-05-2008, 12:47 PM
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I had a problem similar to this once, when you hit a turn signal the wipers would come on. The switch inside the turn signal switch was cracked and causing the problem. I fixed it by replacing the switch. I dont think there is anyway around this if you have the same type of problem. Hope that helped some.
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post #3 of 5 (permalink) Old 04-05-2008, 10:41 PM
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Kyle talks from experience. From reading the W211 forum the multifunction switch issue seems reasonably common too. Parts must be different though.

Some have suggested using compressed air or some cleaning stuff, that may give a temporary cure on the W211 where the switch is a signal switch but on a W203 too it would at most drive a relay.

Changing the switch is not that simple (I assume it is the same as on a W211), you would have to remove the steering wheel with the air bag, be careful with the wiring, clock spring etc. But you would probably find a guide from the car specific section.

Good luck for the task, at least your story was convincing, if you decide to do it yourself, I hope you get all the help you need.
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post #4 of 5 (permalink) Old 04-05-2008, 10:56 PM Thread Starter
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Thanks for the advice guys - I'll pass it on to my Dad. Not sure if he'll want to attempt it himself but if so all I will be doing is passing the tools and making the tea! I'll check out the W211 forum for any other info but at least if we have to take it to a garage he may have an idea as to what it is that needs doing.

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post #5 of 5 (permalink) Old 04-10-2008, 05:44 AM Thread Starter
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Hi, just a quick note to say thanks for the advice. My Dad took his car into the dealers today and the problem was exactly as you suggested - a cracked switch. The car is now sorted so thanks for your help!
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