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Starts and runs strong for 2-3 mins then slowly dies. I
starts and runs strong for 2-3 mins then slowly dies. I recently replaced the fuel pump and fuel filter after completely removing the fuel system and draining the fuel tank. … read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
Ive got a 1977 450 slc been sitting for 11 yrs. replaced
Ive got a 1977 450 slc been sitting for 11 yrs. replaced fuel pump fuel filter all 8 injectors cleaned out the lines from the fuel distributor to the injectors. the car starts and idles but wont take … read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
Im restoring a 1974 SLC Mercedes & am wanting to know how
Im restoring a 1974 SLC Mercedes & am wanting to know how the air system works to lock & unlock the front seats … read more
Matt
Matt
Engineer
Bachelor's Degree
643 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
56,216 satisfied customers
I have a 450 slc 8 cylinder coupe it starts fine but when I
I have a 450 slc 8 cylinder coupe it starts fine but when I touch the gas peddle it quits.… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
1972: Hi. I have a 450 SLC 1972 that I havent started in two
Hi. I have a 450 SLC 1972 that I haven't started in two years. After charging overnight it turned over very nicely but would only fire if I added gas into the carburetor through the air filter. Then i… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
Hi Ive just bought a mercedes 450 slc 1980 as a non runner
Hi Ive just bought a mercedes 450 slc 1980 as a non runner I've replaced the fuel pump and filter but have no power to the pump Located the relays in the footwell but not sure which relay supplies pow… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
Specs..Car wouldnt start unless you shot starting fluid
Have a 1977 450 SLC w/European Specs. The initial problem was "Hard Starting." Car wouldn't start unless you shot starting fluid into the intake system. The following items have been replaced: Cold St… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
Mercedes-Benz 450SLC 1976 Mercedes 450 slc - inhereited this
1976 Mercedes 450 slc - inhereited this car, it has 120,000. miles on it. Took a complete overhaul of the fuel system including a new WUR to get it running after a 3/4 year sit without being driven. N… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
) It is fitted with the 4.5 ltr V8 M117..fuel system..psi
Hi, I have a 1975 450 SLC (C107) It is fitted with the 4.5 ltr V8 M117. It has the K Jet fuel system. The car is in immaculate condition (82000 km or approx 50000 miles) it has not been started for ab… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
mbz..rough idle then few minutes..few minutes later..runs smoothly
Hello, my name is XXXXX XXXXX I have 76 MBZ 450 SLC, when I first start it in the morning or everytime I first start it has very rough idle then few minutes later or when the engine get warm up it run… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
replacing..Your diagram and parts list helped me too.
Hi I was able to get my 79 450 slc to 'run' (get gas) with replacing the fuel filter. Your diagram and parts list helped me too. Once the fuel filter was installed. I thought I was 'done' .. NOOOO.. t… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
your help and photos of my fuel system..450 slc fuel filter..hoses
Hi, thanks for your help and photos of my fuel system. I got the 450 slc fuel filter, took apart the old 'system' and I have called 'rockauto' auto parts to try to replace the hoses. they don't have t… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
Starts back..stall..drove..2hours of high speed driveing before it
my 78 slc 450 runs out of fuel and after i let it set for 5min it starts back up and will go 5mile and stall out andit keeps doing this.the other day i drove it for 2hours of high speed driveing befor… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
1976 Mercedes: can i buy the thin metal gasket..fuel distributor
I have a 1976 Mercedes 450 SLC. 4.5 engine. My questions are... 1. where can i buy the thin metal gasket that goes between the two halfs of a fuel distributor? 2. I just replace my valve cover gaskets… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
Replaced fuel pump, fuel filter, fuel accumulator..Drained..gas tank
my 1976 450 slc is hard starting cold or hot. Replaced fuel pump, fuel filter, fuel accumulator which did not help. Drained a refilled gas tank. Read where fuel pump relay may be problem but cannot fi… read more
mbfixer
mbfixer
Shop manager
High School or GED
453 satisfied customers
000 miles..of the belts, hoses and spark plugs need to be replaced
I'm contemplating purchasing a 1973 450 SLC w/ 55,000 miles. I believe that all of the belts, hoses and spark plugs need to be replaced. What does something like that cost? Can I do any of that myself… read more
Marty
Marty
Mercedes Technician
Associate Degree
56,216 satisfied customers
electronic..operation jon how this fuel injection system works
450 slc 1975 W107 with electronic injection. Idle problems. Where could I get a good description and a theory of operation jon how this fuel injection system works. I have owned this car about 3 years… 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

56,216 satisfied customers

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

3,132 satisfied customers

Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

643 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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