is relay malfunction causing problem? where is the relay located on non turbo 300cd. thanks

i'd say 9 times out of 10 i find that the switch is bad not the relay.

Anyways, the relay is under the dash on the drivers side, its mounted wayy up near the top on the firewall.

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

2nd that on the switch ,its easy to replace ,just keep very close attention when taking those ettiiee bittiieee screws out of the wiring housing.A junkyard might charge you $10 for the whole piece just dont mention the word mercedes ,that doubles it .

You might also try pulling the cap off the end of the signal stalk and cleaning all the parts inside. I has issues with my wipers randomly turning themselves on and there was some moisture inside under that cap. Once I cleaned it out haven't had a problem since. The cap snaps off, but you have to gently pry it off. Make sure you pay attention to out it all comes apart. There are several parts inside. And don't let the cap fly off, it's spring loaded, and you may loose parts.

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