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E63 / E64 6 Series (2004 - 2010)
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  #1  
Old 07-23-2019, 01:17 PM
Tuonov Tuonov is offline
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Mein Auto:
Clunky 1st gear when engine is cold

Hi,
I've noticed in the last couple of days that when the engine is cold, when stopped at a red traffic light, in drive, with my foot held on the foot brake, when I release the brake, rather than smoothly creeping, nothing happens for a split second then the car jerks clunkily forward (as if the car has just gone into drive).
It doesn't do it if I've only momentarily stopped, only if I've stopped for a couple of minutes or so. The rest of the gears seem ok, and once the engine / gearbox warm up, everything is fine, the car creeps smoothly as normal.

It is a 2008 LCI 630i auto.

Anyone know what this might be?
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  #2  
Old 07-24-2019, 04:49 PM
HerbP HerbP is offline
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Mein Auto: 05 645Ci, 14 750 M-Sport
It sounds like you might be low on transmission fluid. I don't know how many miles you have on the car, but the fluid should be changed every 50k miles, along with the filter that is made into the pan.
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  #3  
Old 07-25-2019, 02:04 PM
Tuonov Tuonov is offline
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Thank you. Mine is a 68k car, and looking through the history no sign of a transmission oil change, so I'll get that done.
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  #4  
Old 07-25-2019, 07:41 PM
HerbP HerbP is offline
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That should help the problem.
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  #5  
Old 08-13-2019, 05:42 PM
Tuonov Tuonov is offline
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So I had the fluid changed, and it has made the gearchange smoother, but still does the clink when the gearbox is cold and I've been stationary for more than about 20 seconds or so.

Any other ideas? There's no nasty noises or anything, and no codes on the car, so may well be something I'll just have to monitor for now
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  #6  
Old 08-13-2019, 07:21 PM
HerbP HerbP is offline
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Was this procedure followed, if not this is why? This procedure must be followed to the T, this is not like a typical automatic tranny!
Attached Files
File Type: pdf 626 parts list fill.pdf (1.83 MB, 16 views)

Last edited by HerbP; 08-13-2019 at 07:27 PM.
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  #7  
Old 08-13-2019, 07:25 PM
BabyUnicornTaco BabyUnicornTaco is offline
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Mein Auto: 2008 X5 4.8i E70 Sport
I looked at the attachment but a procedure did not load. Just parts. Some mechanics may drain and fill the transmission fluid but the procedure from ZF is specific to move through all gears without the wheels moving to make sure the fluid is at the correct level. HerbP knows these engines/vehicles so follow his recommendations.


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2008 X5 E70 4.8i M-Sport
2008 550i RPI Exhaust, RPI Ram Air
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  #8  
Old 08-13-2019, 07:28 PM
HerbP HerbP is offline
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Problem fixed!
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