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Related Mercedes Questions
1987 MB 560 Sl with no power to cold start injector, check
1987 MB 560 Sl with no power to cold start injector, check fuse to overpower relay, it's good and has power. Check thermal switch and replaced just to make sure.. Car doesn't seem to run well at idle.… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1993 300te 4matic starts immediately then dies but restarts
1993 300te 4matic starts immediately then dies but restarts a little slowly and then idles well when cold idles low-ish 500-650 when up to normal temp when driving for a while, and then re-fueling, up… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
I have a 1986 Mercedes 300 E with 135,000 miles. I let the
Hello, I have a 1986 Mercedes 300 E with 135,000 miles. I let the car sit for several months without starting it. Now, when I start it, the idle jumps to 1000 rpm, then down to 500, then back up again… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
300ce: Hi Marty! Been awhile, hope youre doing well. Anyway,
Hi Marty! Been awhile, hope you're doing well. Anyway, just lost the fuel pump on that 1988 300ce, so please let me know what the r&r is like, diagrams if available! Thanks, Joe… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
190 E: 1986 Benz 190E - 2.3 liter. Starts but runs very rough
1986 Benz 190E - 2.3 liter. Starts but runs very rough and runs very rich, skips hard, exhaust popping. After 3-5 minutes of running RPMs up and down, suddenly runs great with no issues at all.… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
300TE: 88 300TE rough idle at times, stalls coming to stop,
88 300TE rough idle at times, stalls coming to stop, will start right back up this comes and goes there are days when it runs great and others that it does not want to stay at idle We have replaced fu… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
300te: I have a 1991 Mercedes 300TE 4matic and it seems to
I have a 1991 Mercedes 300TE 4matic and it seems to take about 5-10 attempts to start and once I get it to stay running it runs real rough and gets better over 3-5 minutes as the engine warms. I can d… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Mercedes-Benz 500SEC: Hello,I question a question about a 1985
Hello,I question a question about a 1985 mercedes 500 sec,on the CIS fuel distributor,having an issue with long crank time and when started run rough for about 30 to 40 seconds then smoothes out start… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Mercedes-Benz 300TE: Mercedes w124 300te 12v. 89 Greg. The
Mercedes w124 300te 12v. 89 Greg. The car will sometimes start okay and and run fine for a while, then it will start to run a little rough/lumpy the revs drop slightly and she stalls. Sometimes it wil… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1986 300E: plenty of black smoke..few minutes..switches..it runs fine
1986 300E Gas When starting cold it barely starts and runs poorly. Have to give it gas to keep runnibg with plenty of black smoke. Very rich. Runs like this for a few minutes and then like something s… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1993 mercedes benz 300sl: vin..heat gauge..spark plugs..rotor
I have a 1993 mercedes benz 300SL VIN NoWDB1290612F078616 engine No 10498122021637 The problem is it starts and runs well when it is cold when it gets upto about 80 degrees on the heat gauge you switc… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,132 satisfied customers
1992 mercedes 300: fuel filter,plugs..rotor..vaccum hoses..warmed
I have 1992 mecedes 300E 2.6.I have a cold start problem for about a year.Sunday the engine turn over and would not start.Monday,I turn the key on the first try,and the engine fired right up.Second ti… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1990 300TE: runs fine..shutting..Cranks..run normally
1990 300TE runs fine for ten to twenty minutes before shutting down. Cranks normally but will not restart. Wait for a hour or so and car will restart and run normally for another ten to twenty minutes… read more
Stan
Stan
Technical support engineer
Bachelor's Degree
3,418 satisfied customers
pedal..fuel relay,lambda sensor,rubber seal..injectors..abs..idling
My 1990 200E lacks power.When i press the pedal to the metal it just roams,but nothing happens.Parked or drive,hot or cold,4000rpm is max it can do.I even removed the air cleaner and pushed the vakum … read more
Matt
Matt
Engineer
Bachelor's Degree
807 satisfied customers
1985 380SL: runs rough..warms..the plugs, Fuel filter and Air filter
I have a 1985 380SL that runs rough after it warms up. It seems to run good when it is cold but after 5-10 miles it runs very rough. I have changed the plugs, Fuel filter and Air filter. This car does… read more
mbfixer
mbfixer
Shop manager
High School or GED
453 satisfied customers
1990 300te: 6cyl..station wagon..the car started and ran..ran good
My 1990 300te 6cyl station wagon would not start 6 months ago after running for 1/2 hour. After 1 hr the car started and ran good for six months. No problems at all. Two days ago it quit at some traff… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
92 300te: straight six that has a hard starting problem..it sits
I have a 92 300te wagon straight six that has a hard starting problem. It only does it when it sits overnight or for a long period of time. Possibly a fuel bleed down problem. inherited the car but kn… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1991 300te: wagon..cold start problem, wires ,cap ,pluge,etc..relay
got a 1991 300te 4 matic wagon with 112,000 miles on it having cold start problem, wires ,cap ,pluge,etc have all been replaced also replaced the ovp relay. I was told it may be the fuel computer ? is… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 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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