Bosch Temperaturregler Repair
What I thought was monovalve problems turned out to be an electronic control box hidden behind the glove box. My heat was erratic, hot, cold, different vent temps at idle …
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W123 Resources
Here you can find a listing of all the various resources I’ve made to help you repair, maintain, and care for your W123, or similar body style Mercedes. Parts: Articles: …
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W123 Mercedes fuel filter crush washer upgrade (Stop that fuel leak)
The Aluminum crush washers used on the OM617, OM616 and likely other Mercedes is a common spot to have a slow fuel leak. Many times that crush washer doesn’t seal …
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W123 Mercedes AC improvements
One often complained about part of owning a W123 Mercedes is the less than stellar AC performance. I’ve gradually been working to improve mine to determine what modifications are worth …
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W123 Mercedes front brake overhaul
It is important to keep your braking system in tip-top shape, as you need to be able to stop without running into things. I’ve personally found that running into things …
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W123 Vacuum Diagrams and Troubleshooting Information.
This is the start of my project of making vacuum diagrams for my W123 Mercedes. I’m quite confident in saying its rough. VERY ROUGH. Take these with a grain of …
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W123 VDO Cruise control repair Saga
The VDO Cruise control unit used on the w123, w126, w124 and likely many other mercedes models was also used on a pile of other cars, including Porsche, BMW, even …
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