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Marty, You told me a while back I could jump the resistor to
Hey Marty,You told me a while back I could jump the resistor to the Aux fan to have the fan kick in on high fan speed when the AC is switched on.I did this today on the 91 convertible, which has a sin… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Marty, I think my master cylinder is shot, just thought I
Marty,I think my master cylinder is shot, just thought I would check with you before getting a new one.The brake peddle feels softer and some times really soft. The fluid level is up in the normal ran… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
A question about cooling. One of my 190d's, the nonturbo,
A question about cooling. One of my 190d's, the nonturbo, has always ran hot. Well not so far above 80, but at lights it has a hot effect of dropped idle and oil press. It freaks my girlfriend out wor… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Marty, I tested the compression in the #1 cylinder. I got
Marty, I tested the compression in the #1 cylinder. I got 100 lbs. Not great but it should run. P… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Hey Marty, I just got a call from Bao, The damned AC on the
Hey Marty, I just got a call from Bao, The damned AC on the Benz has leaked from the time I installed a NEW Denso compressor on it. I used Red Angel and presumed it was the Evap. Even though I did a t… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
C230: I'm a dealer and bought a 2005 Mercedes C230 compressor
I'm a dealer and bought a 2005 Mercedes C230 compressor 123k miles. It's was driving we'll for a week then started to overheat slowly. I took it to a friend that is not a professional and he did a pre… read more
Lou Palomino
Lou Palomino
associates in automotive technology
10,269 satisfied customers
Marty, A new issue arose with the dash job. The blower is no
Marty, A new issue arose with the dash job. The blower is no longer responding to the low and auto settings, its just running on high speed constantly. It was fine for a week after the dash went back … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
e320: Hey Marty, Ive been thinking about the restriction
Hey Marty, I've been thinking about the restriction in the heater core of the Benz, Last year when I did the AC I removed the heater hoses around the Hblock to get at it. There is a plastic Y connecto… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
90 degrees..ac..250 lbs high side..pressure below the 2.2 pounds in it
for Euro, We had 90 degrees here yesrterday, The AC was just not cutting it, I chyecked the pressure and there was 250 lbs high side 40 pounds low. I took your suggestion and lowered the pressure belo… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1985 mercedes benz: SL..000 miles..temperature fluctuates
Hi Marty, This is Gene Wilson from Birmingham, Alabama again. I have a 1985 mercedes benz 380 SL with about 75,000 miles. The temperature fluctuates between low 80's up to the next mark which is eithe… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
Mercedes C230 Kompressor: fan speed..Slowly..5 mins..cool down
Recent bought1999 Mercedes C230 Kompressor - A/C not operating as expected. On all fan speed settings, get only 1 (same) speed. Slowly blows hot air for 5 mins then finally starts to cool down. Temp s… read more
Stan
Stan
Technical support engineer
Bachelor's Degree
3,418 satisfied customers
Mercedes-Benz SLK320 I have a 2001 mercedes SLK 320. The
I have a 2001 mercedes SLK 320. The car is overheating with the a/c on The fan does not come on Where is the fan relay and temp sensor located? What is the best way to find out what the problem is I p… read more
promerc
promerc
mercedes diagnostic technician
Vocational, Technical or Trade Scho
553 satisfied customers
87 mercedes: ac..low side is cycling between 40 & 45 psi..pressures
I am working on the ac of an 87 mercedes, I think 300 series. The low side is cycling between 40 & 45 PSI and the high side is around 350 PSI. Are these pressures excessive? It has been converted to R… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,132 satisfied customers
lower hose..bolts for the side housing, is there a trick to pulling
1987 560 SL......I am trying to replace the thermostat.....I opened up the upper housing and there was nothing in it. Is the thermostat on the side of the water pump, in that housing where the lower h… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,132 satisfied customers
82 300sd: conversion..pressures..condenser input side really gets hot
The a/c unit in my '82 300sd is not working. R-134 conversion. pressures read correctly , condenser input side really gets hot. low pressure side never gets cold new dryer/accumulator what are the vac… read more
Michael Warfield
Michael Warfield
Factory Mercedes-Benz Technician
Vocational, Technical or Trade Scho
3,132 satisfied customers
83 300sd: ac compressor, dryer..expansion valve..valve replaced
I have an 83 300sd. Recently had the ac compressor, dryer, expansion valve replaced (old compressor died). Converted to 134. When charged the system low side produces high pressure readings and the hi… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
I never paid attention to the temperature gauge in my
I just had a question answered and was happy, so here is another one. I never paid attention to the temperature gauge in my MB. I've had the car for a year now. But for the last couple of months, I wo… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 satisfied customers
1987 400sel: 000 miles..degrees..air conditioner..cool air to hot air
I have a 1987 402SEL with only 80,000 miles on it. Just took a road trip a couple weeks ago with outside temperatures around 100 degrees. The air conditioner worked fine EXCEPT it would occassionally … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,141 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

57,141 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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