I have a 1993 500sel mercedes benz with 187,000 miles. the engine ran great and it was well maintained. The key problem was the transmission would not pull in reverse. It ran great in forward. I drove this way for 8 months before having the transmission done. Upon picking up the car from the transmission shop, the engine had a miss and ran rough especially at idle. This did not exist when I took it in. Also, the oil pressure gauge would drop to zero while driving at 75mph but the engine ran fine and it was not really loosing oil pressure even though the guage suggested that.
The following repairs were done by an independent mercedes service shop:
-minor tuneup
-replaced oil sending unit
-replaced the ignition harness cable
None of this worked, so I took it to the dealer. The shop foreman spent 3.5 weeks diagnosing the car. They first thought it was old vaccumm lines and replaced them. Next, they said it was a leak in the intake gasket which I told them that seemed far fetch but replaced it anyway. That did not work. Finally, with the miss being on the passenger side of the engine only, it was dertermined to be the timing chain and rail. A $4,000 repair job. Unfortuately, I could not afford to do this at this time so I asked them to put the car back together. Now, they want $1,500.00 for the work performed on the car. My question is this: Should a problem with the timing chain be detectable early on and not after $1,500.00 worth of guess work??? Please help!!!
Optional Information:
1993 Mercedes-Benz 500SEL v8
Already Tried:
Everything
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