Auto box jumping revs when going up a gear.

Jet1990 · 04-30-2018, 09:21 AM

Hi all,

I've noticed that whenever I've left my 330i N53 auto for a couple of days, whenever i drive it on a cold start & I'm going from 3rd into 4th gear the revs jump a little and the car jerks forward. Once the cars warmed up this issue goes away and all is fine.

Had the gearbox serviced last year which was a complete flush of the fluid as well as new sump.

any ideas?

thanks

Jet1990 · 05-04-2018, 07:59 AM

no ideas on this guys?

Dormermike · 05-05-2018, 05:43 AM

Sound more like an engine fault than a box fault tbh. Any fault codes? N53 is the weak link here

If it really is only 3rd to 4th then perhaps a torque converter fault but I really wouldn't have a clue.

Jet1990 · 05-08-2018, 03:05 AM

no engines code present, although last week on a late night cold start as i was driving the transmission error came on the idrive and stored a code pertaining to the gearbox - something about 3rd to 4th gear but cant remember the exact wording.

I reset all gearbox adaptations and hasn't come back since.

Dormermike · 05-08-2018, 04:09 AM

Ah OK so definitely something up with box. Fingers cross the reset has fixed it..

04-30-2018, 09:21 AM	#1
Jet1990 Private First Class 15 Rep 107 Posts Drives: 330i M Sport Join Date: Feb 2016 Location: yorkshire iTrader: (0)	Auto box jumping revs when going up a gear. Hi all, I've noticed that whenever I've left my 330i N53 auto for a couple of days, whenever i drive it on a cold start & I'm going from 3rd into 4th gear the revs jump a little and the car jerks forward. Once the cars warmed up this issue goes away and all is fine. Had the gearbox serviced last year which was a complete flush of the fluid as well as new sump. any ideas? thanks
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05-04-2018, 07:59 AM	#2
Jet1990 Private First Class 15 Rep 107 Posts Drives: 330i M Sport Join Date: Feb 2016 Location: yorkshire iTrader: (0)	no ideas on this guys?
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05-05-2018, 05:43 AM	#3
Dormermike Captain 102 Rep 681 Posts Drives: Bmw f10 Join Date: Dec 2015 Location: Uk iTrader: (0)	Sound more like an engine fault than a box fault tbh. Any fault codes? N53 is the weak link here If it really is only 3rd to 4th then perhaps a torque converter fault but I really wouldn't have a clue.
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05-08-2018, 03:05 AM	#4
Jet1990 Private First Class 15 Rep 107 Posts Drives: 330i M Sport Join Date: Feb 2016 Location: yorkshire iTrader: (0)	no engines code present, although last week on a late night cold start as i was driving the transmission error came on the idrive and stored a code pertaining to the gearbox - something about 3rd to 4th gear but cant remember the exact wording. I reset all gearbox adaptations and hasn't come back since.
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05-08-2018, 04:09 AM	#5
Dormermike Captain 102 Rep 681 Posts Drives: Bmw f10 Join Date: Dec 2015 Location: Uk iTrader: (0)	Ah OK so definitely something up with box. Fingers cross the reset has fixed it..
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