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Traction control 'bug

Posted: Sun Jan 31, 2016 7:13 pm
by DandB
Hi,
Our 3.2 LWB Gen4 has developed a problem.
On a fast left hand bend (Fields Hill, for those that know the M13 out of Durban) the traction control light flashes and then the motor loses power until the car slows to about 75kph then everything returns to normal.
NB it only happens up hill, and only on left hand curves.

Any ideas as to what can be the cause of this issue?

Thanks

Re: Traction control 'bug

Posted: Sun Jan 31, 2016 8:23 pm
by allandell
Check for a faulty sensor on one of the wheels on front. My second thought would be is it not cause of the skid control and it removes power from engine as it thinks you going to spin a wheel?
I am not sure but that would be my first 2 checks.

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Re: Traction control 'bug

Posted: Sun Jan 31, 2016 8:34 pm
by KurtG
The TC might not be the cause, it must be the ASC. Next time, press the "ASC OFF" button in front of your left knee and see if it happens. Be careful though, it might cause a spin depending how fast you are going.

Re: Traction control 'bug

Posted: Sun Jan 31, 2016 10:34 pm
by Dirty Boy
I get the same with my Gen 3, going up Fields Hill.

Re: Traction control 'bug

Posted: Wed Feb 03, 2016 11:58 am
by Lock
Check play on the wheel hubs. Had an intermittent ASC problem that was solved with replacing the worn (very) rear wheel hubs.

Re: Traction control 'bug

Posted: Wed Feb 03, 2016 2:52 pm
by peterpot
Thinking basics first. We had an issue with a Mercedes Benz once. Turned out to be odd tyre size was causing one wheel to rotate faster than the others. Check tyre size, tyre pressure (maybe a combination of more than one factor) - I would think that tyre wear alone should be accommodated for. I have a new spare r/h rear at 10mm tread depth and l/r at 6mm tread depth and have not had a problem.

Points as mentioned by others above - anything to indicate different wheel speeds per wheel. The sensors I have found pretty reliable and if faulty should be held as a fault code in the vehicle system.