E39 Traction Control and ABS warning lights

[DuncanThomas]

My car has developed a problem where the Traction Control and ABS warning lights come on and the car deactivates these functions . If I stop turn off and wait a minute so so re-start and then start driving all is fine for a bit until it happens again: . It can happen at any speed straight driving or when cornering. Any ideas - is it worth getting under the car and spaying with a high pressure hose around the hubs, I sure the sensors are around there are they not.used:

Confused, frustrated and a little skint at present - hence I do not want to send it to the BMW dealer- can anyone help

[npnp]

I have the same problem. Let me know what you find out.

[da_bull]

Me too, just an E34. I have been told its an ABS module.

[Eric S.]

You didn't say what year car you had, but it sounds like ABS module failure, which is most common on '99 E39s, but occurs on other years too.

The ABS module can be sent off and rebuilt for about $300, or you can buy a new one for about $600 to $700. I've not had that problem myself, so I'm afraid that's about all I can tell you.

[muzzydawg]

You say the Controller module can be rebuilt? Where would you go to do this? Do they also handle the reprogaming of the unit? I was just told I needed replacement of the ABS Controller module and I'm not looking forward to the $900 quote they gave me.

[npnp]

Originally Posted by da_bull

Me too, just an E34. I have been told its an ABS module.

I dunno... I read somewhere else that it's got something to do with the brake sensor being dirty, that the sensor is a magnet and that dirt causes the sensor error. I don't know if it's true, but the problem on my car (E39) goes away when it rains.

Anyhow, I'd like to try to clean the brakes with brake cleaner fluid, but I've never done it. If someone knows the procedure, I'd appreciate the knowledge.