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  1. 1988 Mercedes 560 SEC not starting.

    W126 S,SE,SEC,SEL,SD,SDL Class
    Fuel pump pipes/ fuel filter schematics
  2. 1988 Mercedes 560 SEC not starting.

    W126 S,SE,SEC,SEL,SD,SDL Class
    Update - managed to change pumps after testing fuel pressure which was low as expected. Problem solved 🙂 Many thanks - only issue is when fitting back all the parts I tightened the fuel filter pipe and broke it!! Anyone have any schematics or can advice on what this piece is called, or a part...
  3. 1988 Mercedes 560 SEC not starting.

    W126 S,SE,SEC,SEL,SD,SDL Class
    Thanks for that, will try jumping those then move on from there.
  4. 1988 Mercedes 560 SEC not starting.

    W126 S,SE,SEC,SEL,SD,SDL Class
    Yeah I found a nice dealer up north that were happy to post out some parts. I have uploaded some pics - first is what should be the relay circled (hope I’m right?) and the second is of the pins to jump presumably. Third is of the pumps which look battered admittedly and will be replacing...
  5. 1988 Mercedes 560 SEC not starting.

    W126 S,SE,SEC,SEL,SD,SDL Class
    Good point, jump is a copper piece between 7 & 8 right?
  6. 1988 Mercedes 560 SEC not starting.

    W126 S,SE,SEC,SEL,SD,SDL Class
    Thanks ArtificialSource and KRH. I feel there is a lot of rust and dirt in the tank and have tried flushing it as much as I can and even trying to agitate the car whilst draining the old fuel (was very brown). When removing the fuel cap there does look to be whitr residue building up which does...
  7. 1988 Mercedes 560 SEC not starting.

    W126 S,SE,SEC,SEL,SD,SDL Class
    Thats interesting and thanks for your reply.... I am genuinely confused in all honesty and am waiting for 100% clarity before ordering as I know they did make some changes in 1988.
  8. 1988 Mercedes 560 SEC not starting.

    W126 S,SE,SEC,SEL,SD,SDL Class
    Are you 100% sure because I have been told Bosch 0580254911 is only compatible for 300 BHP 560 SEC's up to 08/1987
  9. 1988 Mercedes 560 SEC not starting.

    W126 S,SE,SEC,SEL,SD,SDL Class
    Hi guys, I currently have a mini project going with my 1988 560 SEC 300 BHP with 188,000 miles on the clock thats a no starter. I have read the threads on here which have formed the base in addressing the problem. To give you some background it had been sitting for 14 years! So what I have...
  10. New 560 SEC owner (from London)

    W126 S,SE,SEC,SEL,SD,SDL Class
    Many thanks Ian - and yep youre quite right there and I can imagine all the damage that sea air would do! Just tried updating as suggested - still getting used to the interface etc.
  11. New 560 SEC owner (from London)

    W126 S,SE,SEC,SEL,SD,SDL Class
    Will definitely get some pictures but will wait until its a tad more presentable ;-)
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