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Steve, Been fighting a erratic idle on my 1991 Mercedes
Hi Steve, Been fighting a erratic idle on my 1991 Mercedes 560SEL, Ive replaced just about all the common issues with this motor, the idle never stays the same, sometimes the idle in park will be perf… read more
Lou Palomino
Lou Palomino
associates in automotive technology
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Smog Test Catalyst Not Completed. The battery was changed a
I have tried to drive it on the freeway to get the system to react. … read more
Eric
Eric
Retired
N/A
45,844 satisfied customers
I took my 02 ml55 AMG in for state inspection for TX. They
I took my 02 ml55 AMG in for state inspection for TX. They are saying that the catalyst sensor isn't ready and the cold start isn't ready. Is there any way to get these set so I can pass inspection. A… read more
Eric
Eric
Retired
N/A
45,844 satisfied customers
Idle and stalling problem. When cold started RPM settles
Idle and stalling problem. When cold started RPM settles around 600, but runs OK. Once at operating temp, if turned off and restarted, the engine will frequently stall. Usually, stalls under accelerat… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
560sel I have a 91 560sel. It idles a little low around 500
560sel I have a 91 560sel. It idles a little low around 500 -600. But the real problem is that when you press the gas and and call for strong power, the engine stalls. If you gently accelerate the car… read more
Matt
Matt
Engineer
Bachelor's Degree
25,951 satisfied customers
This is a question for an older MB specialist I have a 91
This is a question for an older MB specialist I have a 91 560sel. It idles a little low around 500 -600. But the real problem is that when you press the gas and and call for strong power, the engine s… read more
Matt
Matt
Engineer
Bachelor's Degree
25,951 satisfied customers
My 260e was running completely fine. but today, i started
hi! my 260e was running completely fine. but today, i started it, and it would rev and then die as soon as i release the accelerator … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
! Back to the 1988 300ce. replaced airflow potentiometer,
Hi! Back to the 1988 300ce. replaced airflow potentiometer, I suspect most of the ones around may be set for the 3.2 engine, don't know. Anyway, on startup, goes up to 15-1800 rpm, then drops to idle.… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
190e: Merc 190e 2.6. I was driving normally (75 mph) Sudden
Merc 190e 2.6. I was driving normally (75 mph) Sudden loss of power. Shifted into neutral, stopped. Engine idles smoothly but if accelerator pushed revs initially drop sharply and almost stalls then p… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
91 420 SEL after warming..accelerator..stalls..pedal..driven
91 420 SEL after warming up when you hit the accelerator, the engine "Sucks under" i.e., hesitates or stalls. If the pedal is pressed gradually the vehicle goes on and can be driven, but from a start … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
CL: it parked up for a few weeks..motorway..accelerate hard..misfires
I have a 2001 yr Mercedes CL 600. I left it parked up for a few weeks while i was away and now its running kinda lumpy. Its fine if I accelerate gradually and will still sit at a decent speed on the m… read more
Stan
Stan
Technical support engineer
Bachelor's Degree
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2000 mercedes c280: sport..it will die at red lights..cranks
i have a 2000 mercedes c280 sport. it will die at red lights or at fast food drive thrus. but it has to idle for a long period of time in drive in order to die, but it always cranks back up. is there … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
300CE: mb..dies..car in neutral and coast to a stop..starts back
I have a 1988 MB 300CE that has defied me for over a year now. The problem is that the car just dies while driving. Put the car in neutral and coast to a stop, turn the key and it starts back up again… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
my car runs..few minutes..15-20 minutes and lacks power and dies out
my car runs ok for 15-20 minutes and starts loosing power. wait few minutes and start, runs ok for 15-20 minutes and lacks power and dies out… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
E430: stall..position sensor..the car idles fine then pop..dies
its monday mourning and i started car and let idle for 10 minutes and then put into gear and it did not stall so im going with the throttle plate cleaning and the sensor with the throttle cable connec… read more
Tim Mohr
Tim Mohr
SHOP OWNER
Master's Degree
17,895 satisfied customers
Have 1986 Mercedes 560sel. Sometimes when you accelerate from
Have 1986 Mercedes 560sel. Sometimes when you accelerate from a stop, it stumbles badly and sometimes even dies. I took this to a Mercedes dealer for a AC problem. At that time it ran fine. When I got… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1985 mercedes: idling..compression..fuel filter..spark plugs, cables
My 1985 mercedes 500 sec is stumbles when idling. The engine compression is fine. I replaced the fuel filter, fuel pump, distributor cap, spark plugs, cables and nothing helps. The voltage upon igniti… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1984 500SEL...car dies at idle..dying when I take my foot off the gas.
I have a 1984 500SEL. The car dies at idle but seems to run alright while my foot is on the gas. It also is dying when I take my foot off the gas. I just had a new catalytic converter assembly install… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
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MB Paul

MB Paul

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

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Marty

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Michael Warfield

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promerc

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Chris(aka-Moose)

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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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