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Old 04-16-2012, 06:10 PM
Luke Mahon
Join Date: May 2008
Location: Australia
Posts: 96
W124 Electric puzzle..

Hey folks.

'88 300E W124 driving along yesterday, and the wipers stopped working. Thinking fuse, I pull up, check fuse (all fine) tap the wiper, with engine running and wipers on the fastest setting and wham, it starts up again. Odd, I thought..

Ten minutes later same thing, except now it won't start again. The motor moves freely, you can move it with your hand, yet there is no response on any setting, even the washers don't work.

Ten minutes later, the windows stopped working, no response from any of the four windows! (I realise now I should have checked the sunroof... and maybe lights?)

As far as I know these are the only things that have stopped.. Anyone ever had a similar issue?? I'm slightly puzzled.

Thanks in advance for any help

1971 280SE - The S Class
1974 280CE - Sterling
1988 300E - Stanley
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Old 04-17-2012, 08:43 AM
JamesDean's Avatar
Electrical Engineer
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,034
Could be the combination switch/stalk on your steering column going bad?
Wiper Relay failing?

Odd that all 4 go out. I would check all your fuses, make sure all the contacts are clean and fuses are in tact. It could be dirty fuse contacts.

When you push any of the window buttons (with the car off, key on) do the lights dim?
Cruise Control not working? Send me PM or email ( I might be able to help out.
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Old 04-18-2012, 02:28 AM
Registered User
Join Date: Mar 2010
Location: Los Angeles, CA
Posts: 189
check the combination relay, and looks like your combination switch is going..
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Old 04-24-2012, 09:33 AM
Luke Mahon
Join Date: May 2008
Location: Australia
Posts: 96
So over the weekend I had a chance to take a closer look, and as suggested cleaned the fuse port out fairly well.. Which made no difference. (although some of the contacts were very dirty)

After looking at various relays, (the four in the sealed box above the fuse compartment) I noticed one was slightly ajar, pushed it back in and presto!

Thanks for the advice guys, it is always appreciated.

1971 280SE - The S Class
1974 280CE - Sterling
1988 300E - Stanley
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