[W126 Coupe] 1988 560 SEC loss of power

shinzbox at aol.com shinzbox at aol.com
Wed Sep 30 22:18:20 EDT 2009



Russell,
I'm glad that solved the problem. The first time it happened to me I was in the fast lane of a 6 lane freeway in L.A. doing 80mph and the car died. Imagine coasting across 5 lanes where everyone is doing 70mph average. Its pretty hairy. After I got it fixed, I was still skeptical and stayed in the slow lane for a while until I knew for sure it wouldn't stall again.





Shin?






-----Original Message-----
From: GreyGarageRuss at aol.com
To: mbcoupes at mbcoupes.com
Cc: GreyGarageRuss at aol.com
Sent: Wed, Sep 30, 2009 10:04 am
Subject: [W126 Coupe] 1988 560 SEC loss of power














I had to leave town (Toronto) quickly last week to attend a funeral in
Montreal (325 miles away).? I went to my mechanic and asked if he had a
fuel pump relay for my car.? He had one (not MB brand)?and sold it to
me ($160.00 Cdn).? It was numbered 003 545 24 05 (same number as the MB
branded part already in the car???). I took it with me and headed for
Montreal...1 hour & 40 minutes later the car did it's thing and lost
power.? I confidently put in the "new" FPR and the car wouldn't
even start.? I waited 10 minutes and put in the old part.? 1
hour and 40 minutes later it did the same thing....I finally got to Montreal and
looked up a MB dealer.? He indicated that he had a MB replacement for
#? 003 545 24 05 for $250.00 than looked at his records and said that this
part number (which was in the car) was the wrong number.? He gave me an
identical looking part # 003 545 25 05 at a cost of
$70.00.? This is the same number that Shin mentioned last week.? This
part got me around Montreal and back home without a hitch.


So thanks to Shin and all others who provided me with advise on my
problem...it appears to be solved!!


ps.? I got back my original $160.00


?


?


Date: Wed, 23 Sep 2009 17:07:14 EDT
From:
GreyGarageRuss at aol.com
Subject: [W126 Coupe] 1988 560 SEC loss of
power
To: mbcoupes at mbcoupes.com

I? follow this list daily and now
have a problem with my 1988 560 SEC which
I could? use some advice
on.? Twice in the? last two weeks while driving my
car lost
power.? Each time the trips were at highway? speeds and after

about 1-1/2 hours of driving.? On each occasion, the fuel gage
was? close to the
?R? (reserve tank ) level. The car lost most of its
power (like? running
on 4 cylinders) but did not stall.? I was
able to get over to the curb lane
at about 15-20 mph.? I turned the
ignition off? each time, waited 4-5 minutes
and? restarted?.it
then ran fine.
I have? had two mechanics look at it but no
solution.? Both suggested fuel
supply problems but? the two fuel
pumps were checked and appeared to be
functioning properly.? They also
suggested a fuel sensor? problem but were
unable to check sensor while
problem was not? happening.
Other? suggestions included: blockage
in muffler system or catalytic?
converter!
Any? advice would
be appreciated.
Russell








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