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Have a 91 500sl replaced fuel pumps filter acumulter
have a 91 500sl replaced fuel pumps filter acumulter injectors fuel dist got 6.5 bar fuel preasure tryed another regulator same ck return lines cant get 5.3 bar starts stops no accel cise … read more
Matt
Matt
Engineer
Bachelor's Degree
807 satisfied customers
1991 500sl wont upshift (stays in 1st gear). Should be
should be original and I have about 85,000 miles. How would brake switch affect this? … read more
Lou Palomino
Lou Palomino
associates in automotive technology
11,267 satisfied customers
I have a 1990 500sl that that doesn't shift into 1st gear.
I have a 1990 500sl that that doesn't shift into 1st gear. Starts out in 2nd drives normally the rest of the time. Occasionally it starts in first but once it warms up it goes back to starting in 2nd … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
I'm replacing the drivers side seat belt on 91 r129, and I
I'm replacing the drivers side seat belt on 91 r129, and I put the new one in, but the seat belt won't extend. … read more
Lou Palomino
Lou Palomino
associates in automotive technology
11,267 satisfied customers
I have a2006 500 Sl with 150,000 miles and it seems i have a
I have a2006 500 Sl with 150,000 miles and it seems i have a vibration at about 1500 to 2500 Rpm. I recently had the left front shock absorber replaced and thats when i started noticing it! any ideas?… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Erratic idling when first start up rpm goes from 7 to 1500
erratic idling when first start up rpm goes from 7 to 1500 rpms then smooth out to 7 rpms. then aftter driving a few minutes it starts going from 5 to 10 rpms while driving or in park 91 500sl … read more
Eric
Eric
Retired
N/A
47,906 satisfied customers
Looking for the part number for a 1991 MB 500SL central
looking for the part number for a 1991 MB 500SL central locking vacuum pump … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
300TD: Considering buying a 300TD with 400,000 miles on it
Considering buying a 300TD with 400,000 miles on it .. What should I have a mechanic check for me ... What is most important?… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Mercedes-Benz 380 SL: Hi - My 1983 380 Sl (40,000 miles)
Hi - My 1983 380 Sl (40,000 miles) doesn't shift smoothly as it should; it seems to slightly over rev, then shifts hard to the next gear. The transmission fluid is red - but way up on the dipstick. Th… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
91 500sl: eha and the fuel pressure reg and fuel filter..couple times
my 91 500sl with 64000 miles doesn't like to restart when it's warm after a half hour or so, i replaced the eha and the fuel pressure reg and fuel filter and no change. if i pump the gas pedel a coupl… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,132 satisfied customers
Mercedes-Benz 500SL: I have a 1991 Mercedes 500SL with 80000
I have a 1991 Mercedes 500SL with 80000 miles. Recently I have a very rough idling. The car is fine when speeding or idling in Parking position. But when I shift to Drive, it is getting rough. I worry… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1991 500SL: with 85,000 miles..rough idle 95%..injector..temperture
I have a 1991 500SL with 85,000 miles. I have cold start problems and a rough idle 95% of the time. I have put in new cold start injector and water temperture sensor, still trouble with cold starts. I… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
2009 ml320: 000 miles..the gas and accelerate it..smooth..throttle
I have a 2009 ml 320 blue tech with 56,000 miles. When driving smoothly at around 1800 rpm, most often going up a slight grade, the engine stutters like it is lugging down and cannot shift to a lower … read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
37,103 satisfied customers
1991 Mercedes Benz 350sd: electrical problem..work intermittently
I am contemplating buying a 1991 Mercedes Benz 350 SD diesel turbo with 146,004 miles on it. It "has an electrical problem that causes the dash and the windows to work intermittently." The car is not … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Mercedes Benz 300d: The lower mileage car..mile..blow..smooth
Hi...shopping for a Mercedes Benz 300d Turbo Diesel....am looking at 2 1985's, one has 179K and the other 190K...Is a compression test a good idea? The lower mileage car has a wetter under engine (fro… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
91 500sl: running hot..100k miles..I turned the AC on
91 500sl running hot. 100k miles. Started yesterday when I turned the AC on. plenty of antifreeze. What are possible causes?… read more
Nelson Garcia
Nelson Garcia
Vocational, Technical or Trade Scho
1,094 satisfied customers
91 500sl: starting my..stall..few seconds and then smooth out
when starting my 91 500sl, it will fire up and run rough for a second and stall, then it is hard to start, or it will run rough for a few seconds and then smooth out.… read more
vwnewton
vwnewton
ASE master with L1, Euro Tech
A.S.E. L1 Master and more
657 satisfied customers
2000 500SL: air conditioning sometimes cuts of when idling..ac
2000 500SL, air conditioning sometimes cuts of when idling. Ive heard the the AC evaporator is a common part that fails. Also, just purchasing a 2000 500sl with 17K miles. should I buy the MBI insuran… read more
MBGuru
MBGuru
Bachelor's Degree
282 satisfied customers
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Meet the Experts:

MB Paul

MB Paul

Mercedes Technician

3,567 satisfied customers

Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes

Marty

Marty

Mercedes Technician

57,141 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

3,132 satisfied customers

Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

807 satisfied customers

Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing

promerc

promerc

mercedes diagnostic technician

553 satisfied customers

Qualified mercedes diagnostic technician & service team manager , ATA registered Master tech

Hipo64

Hipo64

Mercedes Technician

444 satisfied customers

Work and diagnose electronics on daily basis.

Chris(aka-Moose)

Chris(aka-Moose)

Mercedes Technician

288 satisfied customers

24 years of experience diagnosing & repairing

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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