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1988 420 SEL. No cold start valve actuation. Followed the
1988 420 SEL. No cold start valve actuation. Followed the diag flow chart. cis-e is outputting reference voltage to fuel pump relay base plate pin #2 regarding temperature; in fact i can see varing vo… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
I have 1986 Mercedes sel when its cold the engine running
I have 1986 Mercedes 420 sel when its cold the engine running normal idle rpm, ones its warms up idle go up almost 2000 rpm steady.… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
450SL: I have a 1980 mercedes 450SL that I rarely drive. 100000
I have a 1980 mercedes 450SL that I rarely drive. 100000 miles. I do keep it in the garage and start it on weekends and let it run for 30/40 mins to get nice and warm. It always starts first crank and… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
420 sel: Hello. My 1989 Mercedes Benz 420 sel has idle problems.
Hello. My 1989 Mercedes Benz 420 sel has idle problems. When first started it revs between 650 and 750 rpm up and down. Then as it warms up to normal temp it jumps to 1100 rpm. Also runs like there is… read more
Matt
Matt
Engineer
Bachelor's Degree
771 satisfied customers
mercedes e420: My 97 mercedes e 420 4.2 v8 lost injectors pulsation
My 97 mercedes e 420 4.2 v8 lost injectors pulsation wont start runs on starting fluid what can be the problem my friend… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Mercedes-Benz: I have a 1997 E 420 SPORT WHEN DRIVING THE POWER
I have a 1997 E 420 SPORT WHEN DRIVING THE POWER STARTS FAILING AND THEN THE YELLOW RECTANGULAR LIGHT STARTS FLASHING (IN THE SPEEDOMETER AREA) IT DOES NOT STOP. THEN START RUNNING FINE. THATS THE LIG… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,132 satisfied customers
1989 560SL: morning starts fine..loses power..dies..same problem
My 1989 560SL .. in the morning starts fine ... after a half mile or so, it suddenly loses power .. I put it in neutral and accelerate ... goes fine .. put it back in drive .. same ... no power .. aft… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Start car..injecter..warm car start great.Also idles to fast even when
First time start car in morning ,have to pime injecter before car will start,after warm car start great.Also idles to fast even when warm. my Mercedes-benz ( 1988 420 sel ) Thank you David L Burch… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
I HAVE A 1986 420 SEL WITH 145,000..START FINE..START...BY DEPRESSING
I HAVE A 1986 420 SEL WITH 145,000 MILES. THE CAR WILL START FINE WHEN COLD BUT AFTER RUNNING IT IS HARD TO START. THE ONLY WAY YOU CAN GET IT TO START HOT IS BY DEPRESSING THE ACCLERATOR TO THE FLOOR… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 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
30,558 satisfied customers
420 mercedes benz: 1997 work on s420 mercedes benz 1997
does a transmission computer for e 420 mercedes benz 1997 work on s420 mercedes benz 1997?… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Mercedes: need a headlight replaced-I have the new replacement..bauer
I own a 1997 E Mercedes 420-need a headlight replaced-I have the new replacement but lokking for a technician to install-doubt if I can do it myself. Bob Bauer… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
420 Mercedes: I cant turn the ec off.Hence, I have no AC.What to do
I have a 1997 e 420 Mercedes, and I can't turn the EC off. Hence, I have no AC. What to do?… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 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
30,558 satisfied customers
When I start my 1997 e-320 (149,000 mi.) in the morning..warm
When I start my 1997 e-320 (149,000 mi.) in the morning, there is a humming sound. After a 5 minute warm up, it disapears. What is the sound?… read more
vwnewton
vwnewton
ASE master with L1, Euro Tech
A.S.E. L1 Master and more
657 satisfied customers
Mercedes: the car cant go higher than 3000rpm for all the gears
hi . i have a mercedes 1,8 190 E 1992 model , and i have a problem when i start the engine . for few minutes(till the engine warm up a while) the car can't go higher than 3000rpm for all the gears. Fe… read more
Paul Webb
Paul Webb
Vocational, Technical or Trade Scho
46 satisfied customers
Mercedes 190: calipers..04-73/83 which they uses rotors..kit..stopping
Good morning I would like to know if the rotors of 400 e 92 which are 295x22 no of piece 124-421-15-12 make on calipers of 93 400 E N. 001-420-04-73/83 which they uses rotors 294x25 and for splash shi… read more
KJ
KJ
Master Tech
Master's Degree
90 satisfied customers
1989 Mercedes: heater..blowing cold air..defroster..a relay or vaccum
I have a 1989 Mercedes 420 sel and when using the heater the floor vents keep you warm but the air coming out of the vents at the window is blowing cold air. If you put the defroster on the air will w… read more
MBGuru
MBGuru
Bachelor's Degree
282 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

771 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.

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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