M4 Competition pack kangaroos in manual
Discussion
I have had an M4 CP for about a month, I like it a lot, it’s a very accomplished car except!
When pulling away gently in Manual, with everything in sport plus, the car pulls away smoothly then kangaroos, sometimes so badly it does an impression of a learner driver on the first lesson, the only way to stop it is to change up, sometimes this isn’t enough and I have to change into third. Changing the gearbox setting makes no difference. I have noticed that when it does this the traction light flashes, yet it is extremely unlikely the wheels are spinning.
If I drive the car quickly it does not misbehave in any way, and the traction control works as expected.
The dealer has examined the car and says everything is normal, I asked them if there are any software updates and was told no.
Has anyone else had this issue? Was it resolved?
Any help would be very much appreciated, I’m sure this can’t be normal.
When pulling away gently in Manual, with everything in sport plus, the car pulls away smoothly then kangaroos, sometimes so badly it does an impression of a learner driver on the first lesson, the only way to stop it is to change up, sometimes this isn’t enough and I have to change into third. Changing the gearbox setting makes no difference. I have noticed that when it does this the traction light flashes, yet it is extremely unlikely the wheels are spinning.
If I drive the car quickly it does not misbehave in any way, and the traction control works as expected.
The dealer has examined the car and says everything is normal, I asked them if there are any software updates and was told no.
Has anyone else had this issue? Was it resolved?
Any help would be very much appreciated, I’m sure this can’t be normal.
Eddieslofart said:
For day to day driving, I have mine in comfort/comfort/efficiency. And gearbox on 1 bar. Sport+ for gentle driving doesn’t work. Probs a software fix somewhere. Have a look on cutters, some clever fellas over there.
hi, that is how I have mine set for day to day, I'm curious if you set yours to Sport plus and 3 bars on the gearbox if it miss behaves, if you could I would really appreciate it. Wills2 said:
Adjust your throttle technique I drive often in S3 with sp+ and you have to either be gentle or positive a half way house or worse stab and release will see you slapping the pedal hence the kangarooing.
The car is misbehaving with steady state throttle , when your car does it does the traction control light flash? I haven't driven an M4 before but have other cars that are considerably faster with very sensitive short throw pedals Wills2 said:
Mine has done it maybe 3 or 4 times over 73,000 miles, always due to a clumsy application of throttle in 1st which starts the jerking.
I don't think your other faster cars are really relevant to your m4 issues.
Therefore as mine does it consistently it has a fault, thank youI don't think your other faster cars are really relevant to your m4 issues.
PorkInsider said:
Yep. They all do it (well the DCT ones anyway).
I think what happens is, you try to be extremely gentle on the throttle to get it rolling but then the movement of the car affects your foot position by a tiny fraction, which causes a lurch, which causes another tiny movement of your foot, and so on.
That’s how it feels to me anyway. They really are very sensitive on the throttle in sport+.
I previously managed to lay 2 (short) black lines up the drive just trying to reverse mine into the garage from my (upward-sloping) drive when trying to set off backwards in sport+.
OP, see if you can get a drive in another one to see if it feels the same.
The dealer is trying to get another car to compare to, but they are thinking it is a fault with the traction control as every time it does it the TC light flashes.I think what happens is, you try to be extremely gentle on the throttle to get it rolling but then the movement of the car affects your foot position by a tiny fraction, which causes a lurch, which causes another tiny movement of your foot, and so on.
That’s how it feels to me anyway. They really are very sensitive on the throttle in sport+.
I previously managed to lay 2 (short) black lines up the drive just trying to reverse mine into the garage from my (upward-sloping) drive when trying to set off backwards in sport+.
OP, see if you can get a drive in another one to see if it feels the same.
M4mike said:
Get it coded with the GTS settings and it gets rid of it. It also gets rid of the gearbox lag (clutch delay) when shifting into reverse when it’s cold. Try someone like dd coding, cost is £100
Thanks I will keep this in mind., the dealer has it booked in to pull it apart, they believe the throttle motor and cam timing actuator are out of sinc. Wills2 said:
Just come back from Heathrow and the car has just ticked over 75k miles, this kangarooing is not a fault with anything other than the driver I love it when people insist it must be the cars fault, as for rattles mines rattle free after 75k (even on the MP suspension) and feels as fresh as the day I picked it up.
The F80 is a really strong package I've had zero issues over that mileage, but if you turn it all up to 11 then it will be very direct which I guess some people don't like.
What is wrong with you? the dealer has confirmed the car has a fault, as per my earlier post. they have it booked in to strip the top end and synchronise or replace the throttle motor and Variable can timing, unfortunately this turns out to be a fairly big job so they need the car for two weeks. however it would be interesting to see you try and drive around this fault, when the input devices are sending contradictory data to the ECU causing it to put the traction control on maximum as a default. But you know better than the master technician who has driven the car and confirms that it is undriveable in Manual. Would you like his phone number so you can tell him he cant drive either?The F80 is a really strong package I've had zero issues over that mileage, but if you turn it all up to 11 then it will be very direct which I guess some people don't like.
late update, I've been on holiday for a couple of weeks, while I was away they fixed the car, the master tech described the car as undrivable, they changed the shaft between the throttle body and the cam timing actuator then synced everything back up. They seem to have done an excellent job.
Its now a different car, some people on here argued that this fault was normal, it isn't I never believed for a minute that BMW would release a production road car that did this, If your car does this take it to the dealer.
Its now a different car, some people on here argued that this fault was normal, it isn't I never believed for a minute that BMW would release a production road car that did this, If your car does this take it to the dealer.
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