W126

Exhaust Leak From Manifold Or Turbo on a 300SD

I noticed a bit of soot in the instrument panel of my '84 300SD. I also get a few specks of soot on the grille and under the hood. My guess is that I have a minor leak somewhere on the exhaust side of the engine. Is there anywhere that seems prone to leakage? Exhaust manifold gasket, turbo gasket, etc.? Thanks for any advice you can provide. Tim Delaney Stewiacke, NS, Canada 1984 300SD, 225,000km

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1983 300SD touchy wiper switch issue

Wiper/Indicator Stalk Issue My 1983 300SD thinks that it has automatic wipers! Some instances when I use my turn signal, the wipers intermittently wipe the windshield and will continue to do so until I jiggle the switch or use the turn signal again. It's really quite frustrating and has started to noticeably scratch my windshield!

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Vacuum Routing - 1983 300sd

Hey Kent: The vacuum book has help alot,but I have a problem that I cannot find help anywhere. The 3/2 valves are really 2 on top of one another. When I got the car several of the curved lines were rotted,and where they plug into the plastic 5-way connector ( which the rubber conector plugs into) was missing tits. So I used the diagram for the 80 to 81 300D and 240D trying to get the vac working right.I stopped the clunking slowing down to a stop.1,2,an 3rd shift ok but early,but 4th wants to slip then shift. Unless you drag race,it shifts fine.So I drive her in 3rd and shift to 4th on my own. Will the diagram I used work?

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350SD: Car shakes heavily at low idle once warmed up.

Hi, My wife has a 350SD (W126 - 1991) with 146k miles. We have had it only for the last 15k miles or so. The car has developed a strong throbbing, low frequency vibration or shaking (the whole car) when stopped at a stop light (for example) after it has been driven for a while and is well warmed up. It is slightly noticeable, but much less severe, when started up from cold. Otherwise, the engine seems to run smoothly and be OK at higher RPMs. I have noticed that the idle speed drops a little from, >6500 to

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