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Related Mercedes Questions
1988 560 SL with 170k miles. Just r. Just replaced the fuel
Just replaced the fuel injectors, rubber hoses, and vacuum lines/connectors. When i put the engine back together, it idles high 1500rpm … read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
36,781 satisfied customers
I have a 1992 R129 500SL Roadster with the earlier
I have a 1992 R129 500SL Roadster with the earlier Mechanical Fuel Injection system. I have replaced the Ignition Barrel Distributor caps x 2,, Rotors x 2, Coils x 2, New Idle Control Valve, ICV Hoses… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Marty, My car is a 1986 190E 2.3-16. I'm having a high
Hi Marty, My car is a 1986 190E 2.3-16. I'm having a high idle issue. The idle stays high 1500-2000 for 15-60 seconds or more, but only after the motor is warmed up. After a minute or so the idle come… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
300 TE: Dear Stan I have a 1989 300te I'm having a high idle
Dear Stan I have a 1989 300te I'm having a high idle problem after I warms up. Ok at cold start in morning starts up fine runs normal. Then idles around 700 then as it gets to good operating level it … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
560SEL: i have a 1988 mercedes 560 SEL. i just got the car
i have a 1988 mercedes 560 SEL. i just got the car and i can smell gas in the exhaust. so i plug the voltmeter to the X11 pins 2 and 3 to check the duty cycle. I get a constant 13.6 v the same voltage… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
36,781 satisfied customers
560sel: Ok I jumped the throttle wire. The center pin to the
Ok I jumped the throttle wire. The center pin to the right pin dropped down the rpm. Now when the car is warmed up the rpm are about 1200 and then when I remove the throttle wire it rises to about 140… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
560sel: Hi Marty I have a 1989 Mercedes 560sel. I have been
Hi Marty I have a 1989 Mercedes 560sel. I have been trying to figure out my idle issue. I currently installed a rebuild fuel distributor and mass air flow sensor that was done by Bosch. It helped a lo… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
I have a 1990 Mercedes 560 SEL. The issue is high idle. The
I have a 1990 Mercedes 560 SEL. The issue is high idle. The car starts and runs great. When I start the car cold, it idles at appx 800 RPM. As it warms up to 60 deg C, the idle slowly increases to 120… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Mercedes-Benz 420sel: I have a 1987 420 sel with idle problems
I have a 1987 420 sel with idle problems when car warms up.. starts good cold but when warmed up a bit starts to run rough . when in gear at a stop it runs about 6,000 and really smooth for awhile may… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
91 300e: cylinder..problem that I am having is with idle.
Hi Eurotech: I have another probelm that I would like you help. I still have the 91 300e six cylinder, 103 motor. The problem that I am having is with idle. It started when I sprayed carb cleaner down… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
88 300TE: stalls.., changed plugs, wires, rotor, cap and distributor
88 300TE starts easy cold and runs well when cold. After getting to temp, continues to run well, but when rpm dropps below 1500 it occationally runs rough and when the idle drops below(NNN) NNN-NNNNrp… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
new Ignition Control Module from autohouse in the 85..RPM.
I just installed the new Ignition Control Module from Autohouse in the '85 380SL. It fired up nicely. The car has been out of commission since November. However the idle is running at 1400 RPM. It wil… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
98 c280: my rpms dont drop below 1200..Check engine light
I have a 98 c280 and my rpms dont drop below 1200. Check engine light up after some driving. What can it be?… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,132 satisfied customers
Mercedes 190e: an intermittent idle surge..second hand..resistance
I have an intermittent idle surge on mercedes 190e-1989. I bought a second hand ICV. The resistance is reading 9.1 and with the two-pin plug slightly pulled to read the voltage I read almost as high a… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Hello, I have a problem with a car that I have just bought
Hello, I have a problem with a car that I have just bought that is sending me insane. The car is a 1986 300SE W126 (australian) with the M103 3.0L engine. I cannot find the exact problem with it, howe… read more
Stan
Stan
Technical support engineer
Bachelor's Degree
3,418 satisfied customers
Dear MB Mechanic, I have a 1990 300TE with arough idle problem.
Dear MB Mechanic, I have a 1990 300TE with arough idle problem. It seems that the idle is set too low. At operating temp and stopped in gear with AC it is only around 575 to 600 rpm. If I give it a li… read more
Stan
Stan
Technical support engineer
Bachelor's Degree
3,418 satisfied customers
1997 E320: overheated..the sensor next to the thermostat
my 1997 E320 overheated per my wife. I replaced the thermosstat, but then broke the sensor next to the thermostat. Replaced the sensor and on and off the car has not been used for about 2 months. I ah… read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,730 satisfied customers
1988 mercedes 300: se..900 rpms..road it drives great..stop light
i have a 1988 mercedes 300 se with a 3L inline 6. it has a idle issue, when starting the car it varies between 600 and 900 rpm's. putting it in reverse car feels hesitent and stalls. when car is runni… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 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

30,558 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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