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1991 300E started running rough when put in gear the stall.
1991 300E started running rough when put in gear the stall. When going down the road ran great. Hard to start and then will not start at all … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Car runs fine then come to an intersection runs rough and
car runs fine then come to an intersection runs rough and dies. I have replaced the O2 sensor twice. Do I need to change the distributor cap as well? … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Im have the exact conditions with my 89 560SL. Can you help
Im have the exact conditions with my 89 560SL. Can you help me continue to hunt this down?… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1993 W140 500SEL with a rough idle / miss-fire below 2k rpm
1993 W140 500SEL with a rough idle / miss-fire below 2k rpm but seems fine above 2k rpm. Installed two new Distributor caps, rotors, coils, plug wires and plugs. Now researching for other things to ch… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Just completed a valve job on my 1990 300 SE Mercedes
Just completed a valve job on my 1990 300 SE Mercedes it's idling extremely high and it's possible that I've got some of my vacuum lines crossed up can you help me?… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
S420: 1995 s420 after sitting or more days starts runs
1995 s420 after sitting for 2 or more days starts runs great for 5 or 10 mimutes then will not take throttle. stalls when trying to accelerate. Once stalled engine turns but will not start for an hour… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
560SL: I have a 1989 560SL. Ran smoothly until today; now,
I have a 1989 560SL. Ran smoothly until today; now, idles very rough and hardly accelerates until 40 mph, they seems to do ok other than on hills. Thanks! Michael… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
I have a 1989 Mercedes Benz 300SE with 200,000 miles on it.
I have a 1989 Mercedes Benz 300SE with 200,000 miles on it. The car sat for 6 years without running. I drained and flushed the gas tank, changed the fuel pump and filter. It started right up but ran a… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
300e: Hi 1992 mercedes 300e cranks but with a sound like is
Hi 1992 mercedes 300e cranks but with a sound like is out of time it will crank but it will not start it get to a cycle and den it like out of time… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1989 260E: cold start..it heats up (10 minutes..acceleration..Neutral
I have a 1989 260E which has developed a problem. On cold start all is well. Once it heats up (10 minutes)it will appear to "miss" on anything but only slight acceleration - even when the engine is in… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
86 300e: car wash..trouble starting..wont start spits and backfires
i have a 86 300e just bought it a few weeks ago & took it to car wash to wash motor & has had trouble starting since and sumtimes wont start spits and backfires....when it does start which is never ea… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
my 1989 300 ce idles fine and runs..accelerating..hesitation..rough
my 1989 300 ce idles fine and runs smooth on low power setting but when accelerating it's missing and has no power until you floor it and then, after a short hesitation it will go, however in a rough … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1989 300TE: Rotor and Distributor Caps..your mechanics..car starts
My car is a 1989 300TE: I have replaced the Rotor and Distributor Caps as previously suggested by one of your mechanics in relation to a problem where the car starts but splutters in Drive (but not so… read more
mbfixer
mbfixer
Shop manager
High School or GED
453 satisfied customers
1989 300TE: acceleration..works fine..idle drops..compression
1989 300TE Wagon temperature display on dash reads, "11". Sometimes reads, "11E" ?? Having issues with idle and acceleration. Sometimes works fine for a short while, then the idle drops and can't get … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1989 300E: Temp sensor..185 psi in all cylinders, it ran..new plugs
I have a 1989 300E, it has 210K on it has a new fuel filter, new Temp sensor, new spark plugs, I checked compression and had 180 to 185 psi in all cylinders, it ran great untill a week ago then it bec… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Conscerning a 1974 450SL, I recently started my car up after
Conscerning a 1974 450SL, I recently started my car up after taking off distributor cap, checking rotor and replacing the distributor cap. The car started but was running real rough. When I tried depr… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1989 300e: that starts fine..gears smoothly..idles rough
I have a 1989 300e that starts fine when it's cold, idles ok, just a little rough and shifts gears smoothly when cold. Problem is once it gets warm it idles rough and shifts hard. It also at times lac… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1988 300E: 000 miles..idling..shakes..accelerating and occasionally it
I have a 1988 300E with approximately 85,000 miles. When idling at stop lights the engine shakes mildly. Occasionally there is hestitation when accelerating and occasionally it takes a few extra secon… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
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Meet the Experts:

MB Paul

MB Paul

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3,567 satisfied customers

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

Marty

Marty

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Bosch Certified Master Tech. Over 35 years experience.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

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Matt

Matt

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

promerc

promerc

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

Hipo64

Hipo64

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Work and diagnose electronics on daily basis.

Tim Mohr

Tim Mohr

ASE MASTER TECH

283 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

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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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