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automatic gear box oil change

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by nrg220, Sep 11, 2011.

  1. nrg220

    nrg220 Senior Member

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    Your Mercedes:
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    Does anyone technical know why some C Class autoboxes have oil for life and others require a change every few years. Mine is a w204 09/2007 C220 5 speed auto, and based on the greabox ref MB says the gearbox oil never needs attention, ie changing or topping up (unless a leak occurs)..just curious what the differences would be that would allow this lifetime spec as it seems odd to me. I only asked as there was no reference to changing it in the service manual

    Thanks :confused:
     
  2. mercmancdi

    mercmancdi Senior Member

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    2009 E250 cdi 08 cls320 cdi ,2007 e280 cdi '2005 E 280 CDI ,VW TOUAREG ,JAGUAR S AND xTO NAME A FEW
    I found this strange as well i bought a 2007 e280 cdi and the gear box oil was changed at
    39000 mls and now mercedes say it never needs done again but i often wonder would it be best to hget it changed again
     
  3. television

    television Always remembered RIP

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    2002 SL500, 216 CL500, all fully loaded
    When this 722.6 made its debout in 06-96 it was said MB sealed for life.

    Interesting that all cars that were on assist had the fluid changed at 37k miles on a once only basis.

    It has been long proved that the fluid needs to be changed every 40k miles. We have had hundreds of post where everyone comments how much smoother the box is with new fluid and a filter
     
  4. mercmancdi

    mercmancdi Senior Member

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    I wonder how much it costs to get a filter and gearbox oil change on a e 280 cdi
     
  5. range rover

    range rover Senior Member

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    Your Mercedes:
    S class 320L CDI 4DR Auto CHALCEDONY BLUE 2005/straight 6
    automatic gearbox oil change

    I had a 2003, I think , c220cdi and it left here without an automatic transmission oil change ever at 80,000 miles and it was used to do quite a lot of trailer work, it was my landrover, looking back now, many times I was hauling way above the sort of load which was legal, my only saving grace was I didn't travel above about 40 when fully loaded, but the car went down on the back quite often when my load decided to stand near the front, silly I know, when I think what could have happened in an emergency.
    On the whys and wherefores about changing the auto oil, I have read on another thread/make, that if the oil was changed regularly it was ok to keep doing so, but if say you get the transmission flushed at 60or70,000 miles it is possible in the flushing process to dislodge foreign matter which would then be mobile in the new oil change. So in summarising, I don't know if oil was recommended for a change in the c220, but I know it's not a service item on my s class, I also realize I would feel very bad about this advice if I ever have to change the transmission, even though it is very unlikely MB would say their advice was wrong all along
     
  6. mercmancdi

    mercmancdi Senior Member

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    i have 100000 mls and m b said thats fine it only ever needs one change between
    35 and 40000 so i guess they should know
     
  7. television

    television Always remembered RIP

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    About £135 from a good indie
     
  8. television

    television Always remembered RIP

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    The are wrong and well proven to be wrong all over the world on every forum
     
  9. television

    television Always remembered RIP

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    In answer to the above most but not all MB dealer now accept that this needs to be done at every 40k miles. And no it is not in any service book or elsewhere from MB, if they were to admit they were wrong it would open the flood gates.
     
  10. mercmancdi

    mercmancdi Senior Member

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    Television what is your thoughts on changing auto gearbox oil could it do any harm
    or is it a waist of money.
     
  11. jberks

    jberks Senior Member

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    My dealer did mine at 45k, I had it done again at 100k. I will probably repeat it at 150k. I'm well aware that the service schedule doesn't mandate it, but for £135 or so, it seems very sensible preventative maintenance to me. After all, hydraulically it may be ok, but this stuff also lubricates the mechanisms, and would you leave any lubricant in for that period knowing the stresses and temperatures it has to undergo?
     
  12. television

    television Always remembered RIP

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    It should be done every 40k miles, you should see the state of some of the fluid that comes out on some boxes, the box will be very much smoother and better changes once its done.

    The box is full of valves etc and many moving parts, no lubrication fluid will last for ever, it should be done along with a new filter
     
  13. mercmancdi

    mercmancdi Senior Member

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    I agree i am going to see about getting my done as at 100000 mls in 4 years with the last change at 39000 i think it deserves it
     
  14. mercmancdi

    mercmancdi Senior Member

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    QUESTION if you were to asked by someone going to test drive a 2006 e320 cdi
    7tip automatic who has never drove a automatic before how would they know if gearbox is working as it should . I was asked this and although i drive an auto
    i did not feel qualified to advise
     
  15. jberks

    jberks Senior Member

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    The questions you should ask are
    1) Are the changes silky smooth (e.g. no jolts, bangs etc)
    2) Does it change gear or is it holding onto gears when you'd have changed up on a manual? (When warm).

    To be fair, any faults on an auto gearbox should be pretty obvious. If it's nice to drive it should be fine.
     
  16. Silver_Star

    Silver_Star Senior Member

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    JBerks has pretty much summed it up. However I would also make sure the kickdown works. Ie foot to the deck and it should drop a cog.
     
  17. television

    television Always remembered RIP

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    That box should be clear of any glycol issues, just test for smooth changes on both light and full throttle as above
     
  18. mercmancdi

    mercmancdi Senior Member

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    Thanks he test drove the car this morning and wants me to go back with him in the morning . He said the gear change seemed nice but only when he ran up to a set of traffic lights he said he THOUGHT he felt atiny bumb as if it was dropping into bottom gear but he wants me to go with him as he thought it was very slight and running up to the lights with no throttle. Would this be normal to feel a slight nudge down into 1st as for the kick down he was surprised at the power (he said it made him sit back in his seat)
    One other thing he named was he though it could have changed up slightly sooner
    but to honest i thought this of my own e280 cdi
     
  19. delboyuk2508

    delboyuk2508 Senior Member

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    I don't understand why any manufacturer would say that the auto gearbox oil is sealed for life.

    I changed mine 2002 w203 a couple of weeks ago, fitted a new filter and flushed the torque converter, parts cost me about £80 from GSF, made a huge difference to the smooth gearchanges, even my wife noticed the difference LOL.

    I used the reference details of the sequence which was posted on here by Ollie, bought a dipstick off Ebay for about £3 that made sure I got the level spot on as that can cause major problems if you don't get the level right.

    I used a couple of DIY ramps that I have had for years, took me, on my back, about 1.5 hrs to do properly, you just gotta take your time and do everything methodically.

    If I can find the link to the instructions I will post it here.

    http://www.mbclub.co.uk/forums/howto/115863-how-change-automatic-gerbox-oil-flush-722-6-box.html

    Hope this helps anyone reading this
     
    Last edited: Jan 8, 2012

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