when the car is cold there is a lot of throttle lag and clunky gear changes (up shift and also down shift)
when the car is warm the throttle response is better but when I come to a full stop at a red and then get back on the accelerator it jerks into gear.
and this is all happening in Comfort mode...
Is this a transmission issue ? or a software update issue ?
and its a 2010 E63
thanks guys.
when the car is warm the throttle response is better but when I come to a full stop at a red and then get back on the accelerator it jerks into gear.
and this is all happening in Comfort mode...
Is this a transmission issue ? or a software update issue ?
and its a 2010 E63
thanks guys.
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PeterUbers
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Dec 9, 2025
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Did the car go from driving normal to driving like this ... did you just acquire this used car?
Quote:
I've owned the car for 4 years. It has always had some throttle lag on a cold start, but recently has gotten noticeably worse. Originally Posted by PeterUbers
Did the car go from driving normal to driving like this ... did you just acquire this used car?
Its like the transmission/clutch is not engaging right away and when at a full stop it seems to go into neutral and then hard shifts back into gear once you accelerate.
not sure if its tranny or software related...
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PeterUbers
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Dec 9, 2025
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- Vehicle(s) I drive2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
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Quote:
Its like the transmission/clutch is not engaging right away and when at a full stop it seems to go into neutral and then hard shifts back into gear once you accelerate.
not sure if its tranny or software related...
unlikely software then, more likely bad clutch or clutch needs a re-adaptation Originally Posted by E63_u_mirin
I've owned the car for 4 years. It has always had some throttle lag on a cold start, but recently has gotten noticeably worse.Its like the transmission/clutch is not engaging right away and when at a full stop it seems to go into neutral and then hard shifts back into gear once you accelerate.
not sure if its tranny or software related...
or... bad valve body
Quote:
unlikely software then, more likely bad clutch or clutch needs a re-adaptation
or... bad valve body
sounds pricey... fuarrkOriginally Posted by PeterUbers
unlikely software then, more likely bad clutch or clutch needs a re-adaptation
or... bad valve body
