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Related Mercedes Questions
Have a 1975 450sl D jet.. I have a 1975 450sl D jet. Engine
I have a 1975 450sl D jet. Engine will fire and quits immediately. crimping the fuel return line after the dampener, the engine will start and run. Replaced the fuel pressure regulator. Starts and quits immediately. Tested old regulator with compressed air and vents to the tank at 35 psi which I understand is OK. Any suggestions? … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
I want Marty to work with me JA: What is the model/year of
I want Marty to work with me JA: What is the model/year of your Mercedes? Customer: 1975 450sl JA: What year is your SL? Customer: 1975 JA: When was your last tune up? Customer: 12 months ago JA: Are … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
450 sl: i do have a 73 450 sl. . and it runs great, but lately
i do have a 73 450 sl. . and it runs great, but lately i do notice that if i get out of the car for 15 or 20 minutes, then try to restart it again, it seems to struggle with the re-start. if i wait lo… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
450 SL: I have a 73 450SL with D-Jet. The engine will start,
I have a 73 450SL with D-Jet. The engine will start, but after a short warm-up, it starts running richer and richer until it eventually dies from over fueling. If left alone to cool off, it will resta… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
280 se: My 1972 Mercedes with 4.5 v8 runs perfect until engine
My 1972 Mercedes with 4.5 v8 runs perfect until engine gets over 185 degrees. Then it runs rough especially at idle and starts to smoke from exhaust. I have to feather the throttle pedal when taking o… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
W107: My mercedes w107 1971 350sl is coughing and sputtering
My mercedes w107 1971 350sl is coughing and sputtering has good fuel and idles ok runs ok for a while than coughs and splutters ?… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
280 SL: can you give me a estimate for a 1975 Mercedes 280
can you give me a estimate for a 1975 Mercedes 280 SL Coop. 91,000 mile but the engine and car hasn't be driven in 6 years, A/C works but values need replacing, interior needs refinished, engine and t… read more
VWDoc
VWDoc
Owner
Bachelor's Degree
7,204 satisfied customers
75 450sl: I recently changed the fuel injectors..run fine..more gas
I recently changed the fuel injectors on my '75 450sl. It seems to run fine, but it consumes alot more gas than it used to. It only gets about 10mpg (down hill). What should I check?… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
All fuel injections fuel distributor fuel pump..dies..restart
Changed all fuel injections fuel distributor fuel pump almost all parts and got to start and run while pressing on gas but as soon as i let off the gas its starts to idle rough and dies and i can't re… read more
Auto Psychic
Auto Psychic
owner
Bachelor's Degree
76 satisfied customers
1978 450sl: a recently rebuilt engine/heads/timing chain..injector
I have a 1978 450sl with a bad engine. I bought a 1974 450sl with a recently rebuilt engine/heads/timing chain. I wish to use this motor in my 1978 but the heads appear to be different (bigger injecto… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
The manifold pressure senser..persists..starts fine..gets warm
My mechanic installed the manifold pressure senser, but the problem still persists. It starts fine, but as soon as it gets warm it will no longer start. Mercedes (l972) 450SL… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1975 mercedes benz: know what type of sensors (coolant..rich..engines
I want to know what type of sensors (coolant?) I need to replace in my 1975 mercedes benz 450 SEL as it runs way to rich and seems to me a sensor is not working I have checked not to many shopps know … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
2000 mercedes: it keeps stopping on me..start back..15 minutes..die
I have a 2000 Mercedes clk 320. In the past couple of days it keeps stopping on me and will not start back up. If I sit for 10 or 15 minutes it will start but will die again. Today it died and would n… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1976 Mercedes 450SL: a rough idle problem..misses..intermittently
I have a 1976 Mercedes 450SL that has a rough idle problem when the engine is cold or hot. It is worse when the engine is hot. And it misses intermittently during the rough idling. I call the missing … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1975 450SL: car runs fine..cold start..eng , sputters, then clears
I have a 1975 450SL with the d-Jetronic eng. The car runs fine with a cold start. Hot starts are another story, it spits, backfires thru eng , sputters, then clears up after a few blocks.I've spent ne… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
450sl: with 96,000 miles on it..hesitation..is intermittent..cap
I have a 450sl with 96,000 miles on it. I just started getting a hesitation on it but it is intermittent. I have replaced all plugs, cap and new wires. always add premium gas and added sea foam to it … read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
1987 Mercedes Benz: die..cuts..back down..about 30mph, it cranks
I have a 1987 Mercedes Benz 420 SEL and there are times that I can be driving and the engine will just die, and as I am coasting to a stop, it starts back up and does fine until it repeats itself. The… read more
Marty
Marty
Mercedes Technician
Associate Degree
30,558 satisfied customers
Mercedes: SLC 1973 with D-jetronic. The engine stalls..much fuel
Mercedes 350 SLC 1973 with D-jetronic. The engine stalls when cold. Very black ekshaust ,sooty. Use much fuel also when engine is warm. Why?… 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

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Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

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

promerc

promerc

mercedes diagnostic technician

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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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