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Alot of black smoke and rough running when idling but clears
Alot of black smoke and rough running when idling but clears up when reved up . 450sl 1975 … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
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We have a 1978 Mercedes 450 sl, its not getting fuel to all
We have a 1978 Mercedes 450 sl, its not getting fuel to all the fuel components. We rebuilt fuel distributor and replaced fuel pump. Any suggestions? … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 satisfied customers
I just put new fuel pump filter, Etc. send distributor to be
I just put new fuel pump filter, Etc. send distributor to be professional restored. but my car wont strat is a mercedes benz 1976 450 sel could that be because the fuel distributor valve is way to clo… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
I can't seem to get the fuel tank out of the position its in
I can't seem to get the fuel tank out of the position its in in the trunk it's like it's stuck on something but there is nothing I can see on the new tank from stopping it from coming out. … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
Car runs a little rough t idle then when it warms up it acts
car runs a little rough t idle then when it warms up it acts like its loading up and flooding , blowing black smoke out exhaust … read more
rpmdiag
rpmdiag
High school
7,992 satisfied customers
Im working on a 1977 450 SL that was sitting a time. We took
Im working on a 1977 450 SL that was sitting a long time. We took out the gas tank and had it boiled out, replaced the strainer filter the fuel filter and the fuel pump with OE stuff. The car will sta… read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
4,460 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
29,460 satisfied customers
e320: 2003 E320, slow acceleration from a stop, replaced gas
2003 E320, slow acceleration from a stop, replaced gas pedal, airflow meter, crank sensor, cleaned injectors, no fix… read more
Matt
Matt
Engineer
Bachelor's Degree
643 satisfied customers
450 sl: I have an 1976 MB 450 SL It starts ok when its cold
I have an 1976 MB 450 SL It starts ok when its cold and everything is ok But when I stop it and the engine is hot and try to start it after I have been away for 30 min the engine goes on a few cylinde… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
1976 Mercedes Benz: it smogged today and it did not pass
Hi, I own a 1976 Mercedes Benz 450SL. I had it smogged today and it did not pass. This is the second time it's failed. The problem is still the same - the CO2 levels. In 2009, it tested 15 mpg - 0.01 … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
1976 mercedes: sl..runs great..2200 rpm, as car warms..1000 rpm..screw
1976 mercedes 450 sl, Came ro me in boxes, all back togather now runs great, except cold start up 2200 rpm, as car warms 130, 1600 rpm and at180, 1000 rpm. after car is at full temp perfect. idle scre… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
1972 450 SL and the distributer shaft seems a little slack..meter
I have a 1972 450 SL and the distributer shaft seems a little slack.I set the points at 12 thou. But when I check it with a dwell meter it varies between 24 and 37degrees What could be the problem and… read more
mbfixer
mbfixer
Shop manager
High School or GED
453 satisfied customers
Leak..the distributor that connects the fuel line..cold start
EUROTEC! I have a 1976 450 sl that has a leaky fuel distributor. The leak is coming from the part of the distributor that connects the fuel line to the cold start valve. The line part number is XXXXX … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
mercedes: SL..carb but it wont run by itself..coming through
I have a 450 SL mercedes that I ran out of gas and now it won't stay running it runs when I spray starter fluid in the carb but it won't run by itself and there is gas in it and the fuel is coming thr… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
I have a 1976 450 SL that has a fuel problem. Has spark. Has
I have a 1976 450 SL that has a fuel problem. Has spark. Has good fuel pressure but will not run without pouring gas to the injectors. When I use starting fluid it starts right up, but rpms are go up … read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
A 1976 450 sl v8 117.985 engine it starts right away when cold..cranks
I have a 1976 450 sl v8 117.985 engine it starts right away when cold but once warm it cranks for a long time but will eventualy start.… read more
Marty
Marty
Mercedes Technician
Associate Degree
29,460 satisfied customers
1975 MBZ 450 SL with an electronic fuel delivery system..cuts..acts
1975 MBZ 450 SL with an electronic fuel delivery system. When driving may car sometimes it just cuts off for no apparent reason. When I try to restart the vehicle it acts like its flooded. Eventually … read more
mbfixer
mbfixer
Shop manager
High School or GED
453 satisfied customers
1979 Mercedes: it would leak from and what is the consistency of Freon
I have a 1979 Mercedes 450 SL. I believe it is leaking Freon--but not sure. Where would the most likely place it would leak from and what is the consistency of Freon so that I if I saw it I know what … read more
mike
mike
Real Estate invest/Pennsylvania Mechanic
Vocational, Technical or Trade Scho
26 satisfied customers
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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

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Bosch Certified Master Tech. Over 35 years experience.

Lou P. master tech

Lou P. master tech

Mercedes Technician

4,460 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

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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.

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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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