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C vs S on e320 cdi

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by grey.skipper, Dec 19, 2012.

  1. grey.skipper

    grey.skipper Guest

    I just can't feel any difference whether I select C mode or S mode on my gearbox. Is it not working properly or is the difference quite subtle? I can't really detect any difference in the mpg stats. Any ideas? Thanks.
     
  2. television

    television Always remembered RIP

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    I do not feel that anyone finds any difference to the MPG with either mode, on the 722.6 5 speed box C is a second gear start and S is a first gear start.
    The gear change points are shifted in both the up and down ranges, S mode holding on to the gears longer than in C

    In C the car will not roll back on a hill, that is quiet useful sometimes
     
  3. Naraic

    Naraic Moderator

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    I'd keep it in S...except if it was slippery when starting off. Mine doesn't roll back in either...but will creep forward in s...so I can crawl up a hill by flicking between W and S...(if stuck in traffic I hasten to add).
     
    Last edited: Dec 19, 2012
  4. OP
    grey.skipper

    grey.skipper Guest

    Am I right to assume that C mode would cause more wear to the gearbox? Thanks.
     
  5. Naraic

    Naraic Moderator

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    Not noticeably.
     
  6. Blobcat

    Blobcat Moderator

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    I used C most often as it did give slightly better fuel economy and the set off was slightly smoother with the 7G box
     
  7. EmilysDad

    EmilysDad Senior Member

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    Although willing to be proved wrong, I'm pretty certain that my R Class sets off in 1st no matter whether C or S is selected :confused: and can't detect any difference in either mode.
     
  8. television

    television Always remembered RIP

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    If the 7g you could be right
     
  9. Troon

    Troon Active Senior Members

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    As I've said before, my E220CDI with 5G always starts in first regardless of mode, and there is a significant difference in behaviour between C and S. S holds the revs too long for me: I waft everywhere in C. Despite being the "baby diesel", 400Nm gives a lot of oomph without needing to change down.
     
  10. st4

    st4 Banned

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    I find C more effortless for cruising but it does start in 2nd, 1st is better to start off in unless facing downhill...
     
  11. Blobcat

    Blobcat Moderator

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    Your probably just a bit short of power, I would recommend an E320CDI :p
     
  12. st4

    st4 Banned

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    I had one, it was super when it worked, which wasn't as often as I liked...LOL
     

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