My car is sick

rstoughy · 20-08-2011, 10:09 PM

Have a problem with the traction control,
It seems to be cutting in viciously all the time i.e under soft acceleration say at 70 - 80. Also going round bends, round abouts etc driving normally i may add with the missus and daughter in the car.
Dry roads, warm weather, tyres ok....im stumped.

Its been doing it for a couple of days now and seems to be getting worse.

Anyone seen this sort of thing before?

Going to get it booked in to the dealers for a check over but just checking to see if anyone else has had this.
Might be linked to my dash light problem back in July when it lit up like a christmas tree at speed.

Not bad, 2yrs 7 months of ownership and this is the 1st real issue so not all bad

chrisburns · 21-08-2011, 12:50 AM

will be following this with interest, not mine but a friends M3 started to do the very same thing and we cannot figure out what it is.

shane@mbtech · 21-08-2011, 01:09 AM

Sounds to me like a wheel speed sensor Paul

Prob the reason why you had light on in germany

Should be an easy fix

**cantfind1** · 21-08-2011, 01:17 AM

Just turn it off! simples.

No but seriously, +1 prob wheel sensor.

pkumarm3 · 21-08-2011, 04:29 AM

do u feel the rear end is sloppy?

if so, may be your rear trailing arm bushings - powerflex rtab is a popular solution!

i know that worn RTABs will create slop in the rear wheels - especially upon acceleration - which could trigger the DSC.

rstoughy · 21-08-2011, 10:47 AM

Quote:

Originally Posted by lawsy

Sounds to me like a wheel speed sensor Paul

Prob the reason why you had light on in germany

Should be an easy fix

Hope so Shane. Not had the lights come on since except the traction one so will see what they say

Quote:

Originally Posted by cantfind1

Just turn it off! simples.

No but seriously, +1 prob wheel sensor.

Hahaha thats what i've had to start doing, feckin thing almost grinds to a halt going around a roundabout

Quote:

Originally Posted by pkumarm3

do u feel the rear end is sloppy?

if so, may be your rear trailing arm bushings - powerflex rtab is a popular solution!

i know that worn RTABs will create slop in the rear wheels - especially upon acceleration - which could trigger the DSC.

No, its got new OEM RTABs with a Turner limiter kit so all nice and tight back there

Niall · 21-08-2011, 01:32 PM

Obviously a DSC electrical fault, a faulty wheel speed sensor 'should' throw on the ABS and tyre pressure warning lights on though.

Going by the fact your DSC is working but interfering too much, my guess would be the DSC YAW/speed sensor has had better days.

**shimmy** · 21-08-2011, 02:15 PM

could be the car doesn't understand your accent!

NZ_M3 · 21-08-2011, 02:19 PM

which lights show up on the dash when this happens Paul?

Could be a few things off the top of my head ...

wheel speed sensor, steering angle sensor (might just be a recalibration), ABS module, DSC module, DSC relay, longitudinal accelerator sensor (might just need a reset), Battery or alternator playing havoc on your electricals, or even low brake fluid (although unlikely)

Did you change tyres recently? Have you done the pull back the pedal reset thingee?

20-08-2011, 10:09 PM	#1
rstoughy S6, Sport On, Traction Off Join Date: Jun 2008 Location: Aberdeenshire Posts: 1,947 Casino cash: $25397	My car is sick Have a problem with the traction control, It seems to be cutting in viciously all the time i.e under soft acceleration say at 70 - 80. Also going round bends, round abouts etc driving normally i may add with the missus and daughter in the car. Dry roads, warm weather, tyres ok....im stumped. Its been doing it for a couple of days now and seems to be getting worse. Anyone seen this sort of thing before? Going to get it booked in to the dealers for a check over but just checking to see if anyone else has had this. Might be linked to my dash light problem back in July when it lit up like a christmas tree at speed. Not bad, 2yrs 7 months of ownership and this is the 1st real issue so not all bad __________________ Paul. Ooooft!!! 15yrs in the CSL and still loving it "shine on you crazy diamond"

21-08-2011, 02:15 PM	#8
shimmy CSL Register Uber-poster! Join Date: Apr 2008 Location: Uk Posts: 14,646 Casino cash: $43909	could be the car doesn't understand your accent! __________________ .

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21-08-2011, 12:50 AM	#2
chrisburns S5, Sport Off, DSC M-track Join Date: Jan 2008 Location: N.Ireland Posts: 653 Casino cash: $12778	will be following this with interest, not mine but a friends M3 started to do the very same thing and we cannot figure out what it is.

21-08-2011, 01:09 AM	#3
shane@mbtech CSL Register Uber-poster! Join Date: Feb 2009 Location: warrington Posts: 5,419 Casino cash: $19783	Sounds to me like a wheel speed sensor Paul Prob the reason why you had light on in germany Should be an easy fix

21-08-2011, 01:17 AM	#4
cantfind1 S5, Sport Off, DSC M-track Join Date: Oct 2009 Location: Sydney Australia Posts: 675 Casino cash: $6490	Just turn it off! simples. No but seriously, +1 prob wheel sensor.

21-08-2011, 04:29 AM	#5
pkumarm3 S2 - Picking it up Join Date: Jan 2009 Location: USA Posts: 41 Casino cash: $700	do u feel the rear end is sloppy? if so, may be your rear trailing arm bushings - powerflex rtab is a popular solution! i know that worn RTABs will create slop in the rear wheels - especially upon acceleration - which could trigger the DSC.

21-08-2011, 01:32 PM	#7
Niall Wonky 'L' after Washing Join Date: Sep 2010 Location: Belfast Posts: 8 Casino cash: $888	Obviously a DSC electrical fault, a faulty wheel speed sensor 'should' throw on the ABS and tyre pressure warning lights on though. Going by the fact your DSC is working but interfering too much, my guess would be the DSC YAW/speed sensor has had better days.

21-08-2011, 02:19 PM	#9
NZ_M3 S5, Sport On, DSC M-track Join Date: Jun 2008 Location: Auckland, New Zealand Posts: 1,434 Casino cash: $13579	which lights show up on the dash when this happens Paul? Could be a few things off the top of my head ... wheel speed sensor, steering angle sensor (might just be a recalibration), ABS module, DSC module, DSC relay, longitudinal accelerator sensor (might just need a reset), Battery or alternator playing havoc on your electricals, or even low brake fluid (although unlikely) Did you change tyres recently? Have you done the pull back the pedal reset thingee?