86 Mercedes 560sec wont start
25

Asked by Liam_T Aug 11, 2015 at 01:34 AM about the 1986 Mercedes-Benz 560-Class 560SEC Coupe

Question type: Maintenance & Repair

i have a non-abused 86 Mercedes 560sec that turns over but will not start. One day
after coming out of a store it would not start. half an hour later a friend came to help
me tow it home. before leaving i tried it  it started and i was able to drive it home. the
next day it would not restart. (6 years latter and my some has now taken this on now
so every thing described after this is his wording) brought one of are trucks up or
tractor with fully charged gel sells i can get the car to kick when using spray start. was
able to get the car to run on its own once being jumped directly to my truck with twin
battery (i did disconnect the cars battery) it ran for about 7min then it cleanly died off.
haven't been able  to get it to go since. any help is welcome because im trying to get
this to be my daily for junior and senor year in HS.

thank you for looking
-Liam

3 Answers
189,385

Paul answered 9 years ago

I would perform a full tune up on the car which includes cap, wires, coil, spark plugs, I would remove all the old fuel, blow the lines out, new fuel filter. This will give you a good start.

4 people found this helpful.
Mark helpful
25

Liam_T answered 9 years ago

done that i did try that thank you. the fuel system was drained before the car sat and as for the cap wires and plugs they where done a year be for the cars failure to start. just a few weeks ago as i started this project the fuel filter was replaced (im going to at some point but reluctant to pull it all apart to also change the fuel accumulator.) the next things is im going to put a coil on order. thank your for input. i also tested the CPS(crankshaft position senor) by setting the volts meter to volts low and then cranked the car over there was a voltage coming off of it.

2 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 86 Mercedes 560sec wont start 3 Answers

    i have a non-abused 86 Mercedes 560sec that turns over but will not start. One day after coming out of a store it would not start. half an hour later a friend came to help me tow it home. before lea...

    1986 Mercedes-Benz 560-Class 560SEC Coupe

    -

    Maintenance & Repair

  • Fuel Problem with my 1987 Mercedes 560SEC 2 Answers

    will start a little rough sometimes but after driving a mile starts to loose speed and drop RPM, Vacuum starts to red line gas gauge starts moving erratically, starts loosing speed/power (specially in...

    1987 Mercedes-Benz 560-Class 560SEC Coupe

    -

    Maintenance & Repair

  • 86 560sel Mercedes-Benz 4 Answers

    How can i bypass 1 bad fuel pump and use the other fuel pump basiclly on use 1pump on my 86 benz 560sel

    1986 Mercedes-Benz 560-Class 560SEL Sedan

    -

    Maintenance & Repair

  • car wont start 4 Answers

    my mechanics checked and have power to plugs the fuel pumps are running but it still wont start

    Mercedes-Benz 560-Class

    -

    Maintenance & Repair

  • my 1989 mercedes 560 sel wont turn over 1 Answer

    everything sounds normal just wont completly turn on

    1989 Mercedes-Benz 560-Class 560SEL Sedan

    -

    Maintenance & Repair

560-Class

Looking for a Used 560-Class in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Mercedes-Benz 560-Class Questions

CarGurus Experts

  • #1
    Sailor
    Reputation
    430
  • #2
    Never4sale
    Reputation
    320
  • #3
    Mick Stewart
    Reputation
    210
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Mercedes-Benz 500-Class
1 listing
Used Mercedes-Benz SL-Class
8 Great Deals out of 129 listings starting at $9,900
Used Mercedes-Benz 300-Class
4 listings
Used BMW 7 Series
7 Great Deals out of 115 listings starting at $5,995
Used Mercedes-Benz 420-Class
1 listing
Used Mercedes-Benz 380-Class
4 listings
Used Porsche 911
10 Great Deals out of 331 listings starting at $20,988
Used Mercedes-Benz G-Class
7 Great Deals out of 166 listings starting at $34,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.