Mercedes-Benz 300D Questions

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Would like to know how to check the current and working condition of the glow plug relay before buying a new relay or new glow plugs. Plugs are 3 years old.
I was driving in snow the other day and it was slipping all over the place does it have a button for traction
My interior light does not come on when when I open either door. The light does come on with the light switch. Is there more than one light in there and how do I get to the bulb(s)?
The car lost power when driving and was only going 5 mph. What may this be?
car smoke when frist starting. what can i do to stop from smoking
My MB is actually 82 It will start in nutral,could it be relay?
this just startrd a buzzing inside of car gages dont work lights wont work park light dont work brake light stopped working
Does the computer [brain] have anything to do with the injector pump on a 1993 300D 2.5 mercedes? The two wires going to the injector pump, I know one turns the pump on what does the other wire do... I still am havi...
my mercedes starts great but when I try to go up a grade or step down on it it doesn't have any guts or shift down... when it is cold, just starting out, sometimes it runs right , but when it warms up it is gutless a...
has no problem shifting thru 1st & 2nd but doesn't always hit 3rd. fluid level ok.
The pre-ignition rely/coil that sends the spark to the glow plugs fail to activate some times but it is totally random. Is there some way to activate it manually and/or reset it so it will work normally? Seem that i...
My transmission is shifting hard(clunks)into gear.I have checked the fluid it's ok.
Oil sludge has been entering the coolant system for several years. Overheating has started. The coolant system needs to be thouroghly flushed and the gasket for the engine leak needs to be replaced. All of the hoses f...
Where can I buy a Transmission Control Module for Mercedes Benz e300D 1997 Body # WDB-JF-20F-6V-JO-334-43, Part # 021-545-04-32 and what is the price range? Thanks. hermi48@ca.rr.com