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X5 E53 (1999 - 2006)
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Old 04-11-2017, 02:51 PM
rocketron rocketron is offline
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Location: london
Join Date: Feb 2017
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Mein Auto: astra
Gear box oil change

Hi all x5 lovers iv just gone and done it and brought my x5 4.8is 2005 year and been asking around about getting the automatic gearbox oil and filter change as i know it reckon mended dew 2 the life time oil that's but some places are saying they need to up date the soft where on the automatic gearbox after could someone out there ???.

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Old 04-12-2017, 04:09 PM
Porando Porando is offline
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Location: South OC
Join Date: Jul 2011
Posts: 1,776
Mein Auto: 2011 335i, 2004 X5 4.4L
What exactly you asking for?

If you have ZF tranny - the same one is used in Audi, Jaguar , Hyundai and Maserati and all 3 but BMW require service at 60k miles per manuf recommendation.
BMW for some reason does not ( though later they started to recommend 100k miles service)_ - I have talked to ZF and they say all users but BMW are purchasing transmission with filled with ZF fluid while BMW fills it with their own. ZF is surprised that BMW found a "magic" fluid and they still recommend 60k mile service using their fluid, filter and couple seals...
I see no reason for mandatory Tranny Sw update - it is always good idea to do it because if they found and bugs - they will address them.. but for the service is not mandatory.
What mechanic will do after servicing - it will reset memory with adaptation settings because as fluid ages and clutches start slipping - computer adjusts adaptation timing to make sure gear shifting is smooth.. When you put new fluid - these numbers needs to be reset so computer finds new optimal settings as appropriate.
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