Just purchased my first Mercedes, decided to go with the top of my wishlist
and went with the 1990 560 SEL. A couple of items need repair, so I thought
I would pose questions to the group and see if anyone has experience with
these. Just for background, this car has 190,000 miles on it.
1. Sunroof.. Power sunroof does not open. Fuse appears good, same fuse as
front seat heat, heat works.
2. Engine misfire.. Car seems to be missing on one or two cyl, still
drives well, most noticable at stoplights.
3. High idle.. Wants to idle at about 2000 RPM. Can't be normal, this
means that I can take my foot off the gas and still maintain 40 mph. Also
results in some very hard shifts into drive or reverse.
I have not purchaced a service book for this car yet, will be looking for
that shortly, but any suggestions in the meantime would be appriciated.
Thank you in advance.
Aaron
High school -1999.... Firm believer that Mercedes were for yuppie scum
1999.... Drove one for the first time, a 1985 560 SEL, became a believer
2005.... An owner at last, 1990 560 SEL, I think it has every option except
the power rear sunshade
Kent_Diego - 06 Mar 2005 18:11 GMT
> 2. Engine misfire.. Car seems to be missing on one or two cyl, still
> drives well, most noticable at stoplights.
Check to vaccuum hoses and try carb cleaner inside throtle body. An Ohm
meter check of spark plug wires is in order.
> 3. High idle.. Wants to idle at about 2000 RPM. Can't be normal, this
> means that I can take my foot off the gas and still maintain 40 mph. Also
> results in some very hard shifts into drive or reverse.
The idle solenoid is in front center under air cleaner. It has two wires
connecting at end. Check the wires for breakage, they have broke twice for
me causing the 2000 RPM idle. Otherwise, the only other item controlling
idle is the idle control module.
-Kent