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I have a 1990 Mercedes 420 sel gasoline that dies at low
I have a 1990 Mercedes 420 sel gasoline that dies at low speed and with in a minute or two after starting. It starting to it more often. the other day I try to start it and it would run only a second … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
420SEL: I have a 1991 Mercedes 420SEL which accelerates very
I have a 1991 Mercedes 420SEL which accelerates very poorly when cold and when warm almost not at all. Driving on a flat road the vehicle can very slowly accelerate to 60 mph or so. When warm trying t… read more
Jerry
Jerry
Service consultant
Vocational, Technical or Trade Scho
13,108 satisfied customers
400 sel: so I have a 1993 Mercedes Benz E 400 sel it has an
so I have a 1993 Mercedes Benz E 400 sel it has an intermittent starting problem. usually the car starts fine when it is cold but after it warms up it does not restart. all the lights on the dashboard… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
300E: Need an expert who is very knowledgeable about Mercedes
Need an expert who is very knowledgeable about Mercedes Benz KE Jetronic injection system. Car in question is a 1991 300E. car Idles at about 750-800 rpm when on P or N as soon as I engage it in gear … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
560 sel: I recently purchased a 1991 560 sel with 139,000 miles.
I recently purchased a 1991 560 sel with 139,000 miles. Whenever I start the car it idles rough and then suddenly dies. Usually after aprox. 3 attempts it stays running although it still idles rough. … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
I have a 1987 mercedes SEL that begins to smoke and
I have a 1987 mercedes benz 420 SEL that begins to smoke and miss after running idle for 10 or more minutes. When driving the car will bog down if I attempt to accelerate rapidly . Leaving from stop l… read more
Matt
Matt
Engineer
Bachelor's Degree
807 satisfied customers
My 87 Mercedes Benz SEL 300 has developed new engine
My 87 Mercedes Benz SEL 300 has developed new engine problem. I start the car well but unable to move when accelerator is applied after cold start. The engine rev does not goes up and stay at low rev … read more
Auto Psychic
Auto Psychic
owner
Bachelor's Degree
76 satisfied customers
Mercedes-Benz: 1991 mercedes benz 500 sl with 100K has a bof
1991 mercedes benz 500 sl with 100K has a bof in the acceleration - to date changed the injectors 3 years ago - cehced out the fuel injectors and wires o2 sensors before running rich now running lean … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1990 Mercedes Benz: intermittent miss or hesitation..Occasionally
I own a 1990 Mercedes Benz 560 SEC. The vehicle has and intermittent miss or hesitation at acceleration 8 out 10 times after starting. Occasionally the care starts and operates normally without the mi… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
stalling issue when warm..Starts right..die and be hard to restart
I have an 1988 300 sel that has developed a stalling issue when warm. Starts right up but after about 5 minutes it will die and be hard to restart if at all. Have diagnosed the fuel pump to be just fi… read more
Auto Psychic
Auto Psychic
owner
Bachelor's Degree
76 satisfied customers
fuel pump on a 1983 450 SEL..wont start..hesitation..injectors
I recently changed the fuel pump on a 1983 450 SEL and now it won't start - not even a cough or hiccup. Before changing the pump it started without hesitation. I loosened the lines on the fuel distrib… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1991 mercedes 300ce: auto transmission..I found one
thank you for the accurate fix on my 1991 mercedes 300ce auto transmission problem. I found one of the screens clodded. cleaned it & problem solved. Now I have a new problem, very hard to start engine… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
sel..relay, plugs, coolant temp sensor.eha..idles fine
have 1990 300 sel no pwer hot replaced ovp relay, plugs, coolant temp sensor. eha seems to be working / starts and idles fine. hot or cold . cold runs normal ideas?… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
mercedes: 380 sl..smell..engine running again.., then the engine dies
Hi, my mercedes 380 sl dies shortly after i start the engine and i smell gasolin. then i have to wait a 1/2 hour bevor i can get the engine running again.., then the engine dies again. is there somebo… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Mercedes: The model is a 1986 Mercedes Benz SEL 420..running great
Hello I am having trouble with my Mercedez. The model is a 1986 Mercedes Benz SEL 420. The vehicle was running great for the last 4 months but recently I have been experiencing problems while driving … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
A 1985 380 SE Benz with a new gas pump and spark plugs..accelerate
I have a 1985 380 SE Benz with a new gas pump and spark plugs. The car runs fine when it it gets going. But, from the Drive gear, it doesn't accelerate or receive gas.… read more
JamesH
JamesH
Associate Degree
432 satisfied customers
Mercedes 560SEL: gasoline..Problem, The car is sitting in the garage
Hello: I have a Mercedes 560SEL 1986, gasoline. Problem, The car is sitting in the garage for a year or more. Evrey week I start it and have changed the gasoline. It was fine before and now, When I st… read more
Steve
Steve
Vocational, Technical or Trade Scho
204 satisfied customers
wagon: gauges..Fuel, Oil Pressure, Engine Temp..speedo..work fine
I recently bought an 89 300 station wagon (gasoline). The following gauges have stopped working... Fuel, Oil Pressure, Engine Temp. Speedo, Fuel Economy, Exterior Temp, clock work fine. I've checked f… read more
Steve
Steve
Vocational, Technical or Trade Scho
204 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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