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I have a 2005 Mercedes Benz CLK 320 convertible and I'm changing
I have a 2005 Mercedes Benz CLK 320 convertible and I'm changing out the crankshaft position sensor and I'm wondering if there's any special techniques or ideas to get to it easy as possible and also … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
Hey Marty; my wife's 420 SEL has been in the shop (run by
Hey Marty; my wife's 420 SEL has been in the shop (run by two 50/60 yr old Italians who love/know the model well) but simply will not catch/fire/start. EVERYthing's been checked on it... fuel pump, fu… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
ML320: Mercedes 1998 ML320 fuel injectors not firing starts
Mercedes 1998 ML320 fuel injectors not firing starts for a second and cuts off. Fuel pressure is OK to injectors runs when sprayed with starter spray. Checked fuses… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
420sel: Hello your old friend Harlan here with another question/problem
Hello your old friend Harlan here with another question/problem with my 1991 420sel. yesterday, it was raining, the car was running fine. i stopped at a stop sign. The engine died and would not restar… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
420 sel: Hello, You helped me with cruise control on the 420sel
Hello, You helped me with cruise control on the 420sel before, but i couldn't really understand the asnwer. i have an 89' 420 sel and the cruise control works for a few minutes only. It starts to hunt… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
1990 Mercedes: seal..car started..tool might have fallen..belts
I have a 1990 Mercedes 420 SEL which started and ran perfect, today I removed the power steering pump to replace the seal and reinstalled the pump. The car started right away but I heard a knocking no… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
down position..the compartment cover..lift..screw driver in the trunk
Hi, need some help...I have a 1999 CLK320...the soft top is stuck in the down position. I can manually open the the compartment cover but the soft top but I can't lift the top out of the compartment..… read more
Jerry
Jerry
Service consultant
Vocational, Technical or Trade Scho
13,108 satisfied customers
Mercedes: cdi..glow plugs..I notice that the van has lost power
Hi, I have a Mercedes Vito 108 cdi. 2003. The last few days the van starts OK from cold but once hot the engine turns but doesn't fire. My local garage thouth it was glow plugs, changed them but still… read more
Stan
Stan
Technical support engineer
Bachelor's Degree
3,418 satisfied customers
1986 Mercedes-Benz: the heater core removed..disassemble..housing
1986 Mercedes-Benz 560SL. Replacing the heater core and evaporator. Have the heater core removed but cannot determine how to disassemble the housing in order to free the evaporator.… read more
Tim Mohr
Tim Mohr
SHOP OWNER
Master's Degree
17,527 satisfied customers
it gets warm it drops cylinders off to the stage..local merc dealers
I have a 400 sel. Starts cold and runs on 8 cyls. As soon as it gets warm it drops cylinders off to the stage where it runs on 4. I have now spent thousands on it with the local Merc dealers. Replaced… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
91 420 SEL after returning home yesterday wont start.
I have a '91 420 SEL after returning home yesterday won't start. At first, it was about to start, then it just keeps turning over. It appears that there is no spark when turning the engine over. 174,0… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
sel..relay, plugs, coolant temp sensor.eha..idles fine
have 1990 300 sel no pwer hot replaced ovp relay, plugs, coolant temp sensor. eha seems to be working / starts and idles fine. hot or cold . cold runs normal ideas?… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
My Hazard Flasher switch not working, and you..console..clicking noise
This question is for eurotec. Yesterday I chatted with you about my Hazard Flasher switch not working, and you thought it could be the Fuse 9, or relay. Today I pulled the fuse from the #9 socket 0ut,… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
The oil pan on my 1990 420 sel.i order a new one from NAPA..wrench
i damaged the oil pan on my 1990 420 sel. i order a new one from NAPA, however I do not know what size wrench I need to take off the old one please help… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
87 420 sel that I just bought...rough..throtle..it wont start
I have a 87 420 sel that I just bought. It ran very rough at idle and the old owner said it needed intake gaskets I turned the throtle mixtyre screw and now it will not start at all how do I know wher… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
Mercedes Benz 300: SEL..diagnotic socket..drive belts..belt broke
I am trying to buy a part for my Mercedes Benz 300 SEL and it has been hard to ask for on line. Its the part of the diagnotic socket, it has small holes that you check the vehicle and has a wire that … read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
Mercedes: quit running..spark..coil have 9V - The car has been sitting
I was taking off from a light and the car just quit running here are the tests that my son, who is a mechanic but not mercedes, He has done the following tests: we have fuel presssure to the pump, but… read more
Marty
Marty
Mercedes Technician
Associate Degree
57,124 satisfied customers
my 91..bad slapping noise when started cold..valve covers..chain
I'm having a terrible time with my 91 420 SEL. So, it had a bad slapping noise when started cold. When I pulled the valve covers off I found that the chain had in fact been striking the case (see pict… read more
RMillerPhD
RMillerPhD
V.P. of Academic Affairs
Doctoral Degree
230 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

57,124 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Lou Palomino

Lou Palomino

Mercedes Technician

5,799 satisfied customers

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

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

3,132 satisfied customers

Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

716 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.

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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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