Mercedes won't turn over


Asked by Apr 03, 2016 at 10:00 PM about the 1994 Mercedes-Benz C-Class 4 Dr C280 Sedan

Question type: Maintenance & Repair

My Mercedes would lose power and then
regain it while driving down the interstate.
One day it just would not turn over. I
explain that to the mechanic they took a
look at it and then said it was the crank
shaft position sensor. The car would also
spider like it was having problems with a
clogged fuel line. The crankshaft position
sensor was replaced. After a few tries the
car finally started. After a few hours of
driving, I turned it off. It went right back to
unable to turn over.
  What might it be?  It seems that I will
have to have it towed to a garage and the
AAA guy said that it was probably a fuel
pump that needed to be replaced. He
listened inside the car turning the key to
accessory only (not all the way on) and
wasn't able to hear any sound for fuel
pump engaging.
He had me do the same thing with the key,
turning only to the accessory, while he
listed near the port of where you put the
nozzle in for gas. He said he could not hear
anything and thinks it is not getting any
gas at all.
Any ideas?  Besides, get a new car.

Thank you! I appreciate it.


3 Answers

Neli Shujaa

Consider replacing spark plugs. I have had the same problem before.I bought the spark plugs for my Honda civic 2001 for $18 and replaced them for $40 but I think the Mercedes parts cost more. Also, sometimes the fuel filter can make the car to turn off all of a sudden. Consider replacing that too, but I am almost certain its the spark plugs.


All spark plugs have been replaced and yes it was expensive, $350 with labor included.


So the spark plugs were replaced 3 months back. All the while I had been experiencing the loss of power occasionally on the highway or interstate I told the mechanic this but I guess he just thought it was the crank shaft position sensor. It got replaced. It drove but still sputtered a bit. Pop! Pop! Pop! Then it would disappear. (Shoulda coulda woulda) I should have taken it into the shop for a diagnostic, before it never started back up again. Like I said the AAA guy said that it didn't seem like the fuel pump was engaging - doing his testing methods Wonder what it could be?

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