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Related Mercedes Questions
1987 MB 560 Sl with no power to cold start injector, check
1987 MB 560 Sl with no power to cold start injector, check fuse to overpower relay, it's good and has power. Check thermal switch and replaced just to make sure.. Car doesn't seem to run well at idle.… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
Marty, me again. 420SEL. After we got it running last month
Hi Marty, me again. 420SEL. After we got it running last month I loaned it to my son. He drives it nice and easy. He said idle was not very smooth. I inserted an ammeter in the line to the EHA. I coul… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
190E: On a 1991 190E how much current should there be to the
On a 1991 190E how much current should there be to the EHA during post-start and warm-up at different temps. I have 22ma when I turn the ignition on but it falls to near zero when I crank it. I can ge… read more
Billy
Billy
Trainer/Master tech.
Bachelor's degree
3,498 satisfied customers
merz. 190e: 1990 190e 2.6 eng. checked Voltage from ovp and
1990 190e 2.6 eng. checked Voltage from ovp and fuel psi is 77.cold start valve has 12 volts to the vaive.Still no start when cold.Engine has new plugs cap and rotor.… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
190e: 1). got the fuel pump ooze to stop with new copper washers
1). got the fuel pump ooze to stop with new copper washers 2). installed the replacement ECU 3). tested the KOEO amperage at the eha and had 0.67mA....I think that is the same as with the previous ecu… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
hello, on a 1989 560 sl the sparks continuusly get fouled with carbon. 76000 miles spark
hello, on a 1989 560 sl the sparks continuusly get fouled with carbon. 76000 miles sparks, cables, distributor cap, rotor arm, ignition coil, ezl renewed. fuel injectors and seals renewed, idle system… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
Mercedes-Benz 300 SE: Good morning MartyYesterday the car
Good morning Marty Yesterday the car was idling nicely and was very responsive after the mix adjustment... the car was at working temperature. Today I tried to start the car and it took me 10 starts t… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
190E: HI MARTY 93 190E MERECEDES I HAVE CHANGED THE FUEL DIST.
HI MARTY 93 190E MERECEDES I HAVE CHANGED THE FUEL DIST. EHA. FUEL REG. FUEL PUMP. FOUND BAD MAS FUEL REG, DISASSEMBLED SOLDERED BOARD BACK TOGETHER PIN #1 12V, PIN# XXXXX MANUALY CLOSE CONTACT FUEL P… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
cam sprocket alignment with crankshaft.Thanks again..jumped..miss
I was successfull with cam sprocket alignment with crankshaft.Thanks again. Does not appear chain jumped, however I have a miss in engine which exsisted before chain issue. I recently changed both fue… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
300e: intake manifold with new injectors..rebuilt..hoses..runs great
I have a 1991 MB 300e. After resolving a problem with popping in the intake manifold with new injectors, rebuilt fuel distributor, replacing the hoses to and from the idle control valve and replacing … read more
Stan
Stan
Technical support engineer
Bachelor's Degree
3,418 satisfied customers
1991 300e: popping..the intake manifold which I..pressures..relay
I'm a little miffed at problem 1991 300e. This started with popping in the intake manifold which I related to extended periods without use. While trying to check the fuel pressures, I removed a small … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
I have a mercedes 190E w/ a 2.3L I4. It has a high idle, and
I have a mercedes 190E w/ a 2.3L I4. It has a high idle, and a cold start issue. The electrohydraulic actuator has been replaced. I tested the airflow position sensor and the throttle valve switch. Th… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
190e: blowby problem after using Gunk engine flush and Sea Foam misted
Hi, Tim here and back on the 190e. Pls check my post from 5-21-09. Car is a 1987 stored for years, now have some improvement with blowby problem after using Gunk engine flush and Sea Foam misted into … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
My 1992 merccedes 190e is running far too rich and blowing
My 1992 merccedes 190e is running far too rich and blowing black fuel smoke with very poor acceleration. Is this a problem for these engines if so is there an easy fix. Thanks Rick.… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
Im struggling with a 91 420 SEL that has a nasty idle when
I'm struggling with a 91 420 SEL that has a nasty idle when warm. My local dealership doesn't work on anything over 5 years old, and will actually treat you like you farted in the showroom once he rea… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
This is alot, so Ill apologize ahead of time....I have an
This is alot, so I'll apologize ahead of time....I have an '88 560 SL that was running just fine until about 2 months ago when it just became undrivable one morning. Lots of black smoke on startup, so… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
Mercedes: run fine..fuel pump relay..fuel injectors, fuel filter
I have a Mercedes w201 2.5-16 (1991) that will start fine from cold but after running for 30 seconds or more it will not start again. i can get it started easily with a squirt of ether spray and once … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,498 satisfied customers
1989 mercedes 300se: fires..revs up..seems like a cold start injector
1989 mercedes 300se cold problems. turns over and fires after a whill but will cut out if you dont keep the revs up. seems like a cold start injector, but hope this is a known problem. Please help… read more
MBGuru
MBGuru
Bachelor's Degree
282 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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Bosch Certified Master Tech. Over 35 years experience.

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Lou P. master tech

Mercedes Technician

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20 years Master Certified excellent fix rate and have access to factory wiring, and instructions.

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Michael Warfield

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Matt

Engineer

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

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

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