Traction Control Failure - BMW Forum - BimmerWerkz.com
3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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#1 (permalink) Old 10-08-2004, 05:25 AM
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Hi as I write this BMW hgave my car for the 8th time since I purchased it 3 weeks ago so I am calling for any insight or help anyone has.

The car is a 325 Sports Tourer Auto first sold in January 2003. I've just bought it used from BMW dealer.

The problem is that the entire traction control/ABS system deactivaties itself at random times. Sometimes it is within minutes of the car starting (shortest has been 15 seconds) and sometimes it is after 2 hours of a journey.

What happens is a load beep, every light in the car flashes (interior, dash, headlights if off) and I am left with the triangle and the brake light glowing yellow. The handling of the entire car changes slightly, accel brake and steering seem twitchy. To clear the car has to be turned off for 20 seconds or more.

Occasionally the problem also resets the entire onboard computer - time, date, MPG, av speed etc, etc....

If I am on a motorway, and cannot immediatly stop safley to turn the car off then on again to clear the fault and have to drive on for a short while and it gets worse....

What happens is a loud bang and the transmission locks itsaelf into a middle gear (no accel at low speed, stupid high revs at cruising speed). I get a picture of a cog with an exclamation mark apearing in the drive window on the dash and the car will not shift gear. To clear this the car has to be off for nearly 5 minutes.

Here's the kicker......

BMW claim there are no error codes recorded from the car.
So they then said.....
The steering sensor not being allibrated correctly.
When that didn't work they replaced the sensor.
Then they took the car for 2 days and claimed they'd reset the computer and all was ok.
Then they took the car and ran a full diagnostic test and sent the results to the central tech support department, who asked for more tests....

And finally they are still running more tests....

Does anyone have any insight? Any ideas? Know more the UK BMW?

I appeciate your time to read and think about this.

Mine's a Guiness.....
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#2 (permalink) Old 10-08-2004, 06:07 AM
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Problem sounds major in that many systems on the car are affected.
Since the car is under warrantee...I would try another dealer!
Tell them your story and ask them for they're best mechanic.
If that doesn't work go back to the original stealership and ask for your money back or equal trade for another!
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#3 (permalink) Old 10-08-2004, 09:38 AM
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I had a similar problem, but not exactly. All the lights on the dash would come on, traction control, check engine and brake lights. The gas pedal would actually feel sticky, it would almost kick back at me when I pushed it. The engine would lose all power and I would have to pull over and shut off the engine, restart a few times and be on my way. Sometimes it would happen all the time and sometimes it wouldnt happen at all. Well BMW had told me that there were so many differerant faults they couldnt pinpoint what it was. They said they all seemed to point to my throttle body. So I bought one and changed it out, same problem. Well they ended up changing out the whole wiring harness under the hood and I havent had a problem since. My point being that when you have those random problems, it is most likely electrical. Good Luck, hope they find it.

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#4 (permalink) Old 10-18-2004, 06:54 AM
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OK, they have made some progress, so they say. I left the car with them for a week whilst on holiday and they have decided to install a new control computer to the car.

I had mentioned the wiring harness as multiple systems are affected but they say they can only follow official procedure as it's all being conducted under warranty.

Anyway, the part is on order and should be fitted Wednesday. I'll let you all know......

Mine's a Guiness.....
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#5 (permalink) Old 10-24-2004, 04:10 PM
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OK, so the new traction control computer didn't fix the problem.....

Although now the Cruise control disengages itself frequently for no reason!

back to the dealer....!

Mine's a Guiness.....
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#6 (permalink) Old 10-26-2004, 12:56 PM
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OK, so the dealer have my car again and I have just written to the head of BMW Customer SAervice in the UK.

Does anyone have any experience/advice when trying to deal directly with BMW and not the dealer network?
Every BMW dealer in a 100 mile radius is the same franchise group so I cannot even try switching dealers for a resolution.

Mine's a Guiness.....
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#7 (permalink) Old 10-26-2004, 02:10 PM
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My car did the same freaking thing only 1 time. I was driving on the freeway and all the dash lights went out. When they came back on the computer was reset. I took it in and they ran some tests and they said they found nothing. I KNEW they would find nothing. The car hasn't done it again, and i've put a good 5k miles on since then, so I haven't thought about it. After hearing your problem I may demand they do something if it happens again while it's still under warrenty. My car had only 5 or 6k on it when it happened.

Titsilver metallic 2004 330 Xi 6speed manual
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#8 (permalink) Old 10-27-2004, 11:37 AM
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If you do get them to check it be careful not to let them get away with an easy answer because......

They are now saying all the components on my car are working properly and checkout on diagnostics but.....

they think 2 fully working parts, the control cumputer and the yaw sensor control may not be talking to each other reliably....possible just a slight incompatability in software revisions....an unforseen bug of sorts and that is why they cannot get error codes or find an actuall fault - everything works in isolation just not 'on the road'.

I'll let you know once they've poked around under the bonnet again tomorrow....

Mine's a Guiness.....
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#9 (permalink) Old 10-29-2004, 07:30 AM
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I boght my 318 iSE year 2000 2 months back and had an incident a week ago. As I was travelling at about 50 –60 miles/h on a wet condition (moderate rain) took a slip road(big corner- not sharp corner) the car just went out of my control and skidded to the opposite lane. Made a spin before came to a stop. A day before that the brake light warning came on briefly and disappeared. Not sure this is any sign of ASC malfunction.

As usual the dealer said I could be unfortunate with the road (oil, aquaplan etc). Has anybody got any clue?

Thanks.
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#10 (permalink) Old 10-29-2004, 07:44 AM
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Quote:
Originally posted by Trigati@Oct 8 2004, 09:25 AM
Hi as I write this BMW hgave my car for the 8th time since I purchased it 3 weeks ago so I am calling for any insight or help anyone has.

The car is a 325 Sports Tourer Auto first sold in January 2003. I've just bought it used from BMW dealer.

The problem is that the entire traction control/ABS system deactivaties itself at random times. Sometimes it is within minutes of the car starting (shortest has been 15 seconds) and sometimes it is after 2 hours of a journey.

What happens is a load beep, every light in the car flashes (interior, dash, headlights if off) and I am left with the triangle and the brake light glowing yellow. The handling of the entire car changes slightly, accel brake and steering seem twitchy. To clear the car has to be turned off for 20 seconds or more.

Occasionally the problem also resets the entire onboard computer - time, date, MPG, av speed etc, etc....

If I am on a motorway, and cannot immediatly stop safley to turn the car off then on again to clear the fault and have to drive on for a short while and it gets worse....

What happens is a loud bang and the transmission locks itsaelf into a middle gear (no accel at low speed, stupid high revs at cruising speed). I get a picture of a cog with an exclamation mark apearing in the drive window on the dash and the car will not shift gear. To clear this the car has to be off for nearly 5 minutes.

Here's the kicker......

BMW claim there are no error codes recorded from the car.
So they then said.....
The steering sensor not being allibrated correctly.
When that didn't work they replaced the sensor.
Then they took the car for 2 days and claimed they'd reset the computer and all was ok.
Then they took the car and ran a full diagnostic test and sent the results to the central tech support department, who asked for more tests....

And finally they are still running more tests....

Does anyone have any insight? Any ideas? Know more the UK BMW?

I appeciate your time to read and think about this.
[snapback]207436[/snapback]

I know the feeling and we are not alone. I know a number of UK based e46 owners 7 in total all with electrical problems, I'm now on my 3rd. It seems that problems like this are not unusual. I had two similar instances in my old 325. I'm sure BMW are aware of the things, so don't let the dealer give you any bull.
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#11 (permalink) Old 10-29-2004, 07:52 AM
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Quote:
Originally posted by BMC+Oct 29 2004, 11:44 AM--><div class='quotetop'>QUOTE(BMC @ Oct 29 2004, 11:44 AM)</div><div class='quotemain'><!--QuoteBegin-Trigati@Oct 8 2004, 09:25 AM
Hi as I write this BMW hgave my car for the 8th time since I purchased it 3 weeks ago so I am calling for any insight or help anyone has.

The car is a 325 Sports Tourer Auto first sold in January 2003. I've just bought it used from BMW dealer.

The problem is that the entire traction control/ABS system deactivaties itself at random times. Sometimes it is within minutes of the car starting (shortest has been 15 seconds) and sometimes it is after 2 hours of a journey.

What happens is a load beep, every light in the car flashes (interior, dash, headlights if off) and I am left with the triangle and the brake light glowing yellow. The handling of the entire car changes slightly, accel brake and steering seem twitchy. To clear the car has to be turned off for 20 seconds or more.

Occasionally the problem also resets the entire onboard computer - time, date, MPG, av speed etc, etc....

If I am on a motorway, and cannot immediatly stop safley to turn the car off then on again to clear the fault and have to drive on for a short while and it gets worse....

What happens is a loud bang and the transmission locks itsaelf into a middle gear (no accel at low speed, stupid high revs at cruising speed). I get a picture of a cog with an exclamation mark apearing in the drive window on the dash and the car will not shift gear. To clear this the car has to be off for nearly 5 minutes.

Here's the kicker......

BMW claim there are no error codes recorded from the car.
So they then said.....
The steering sensor not being allibrated correctly.
When that didn't work they replaced the sensor.
Then they took the car for 2 days and claimed they'd reset the computer and all was ok.
Then they took the car and ran a full diagnostic test and sent the results to the central tech support department, who asked for more tests....

And finally they are still running more tests....

Does anyone have any insight? Any ideas? Know more the UK BMW?

I appeciate your time to read and think about this.*
[snapback]207436[/snapback]

I know the feeling and we are not alone. I know a number of UK based e46 owners 7 in total all with electrical problems, I'm now on my 3rd. It seems that problems like this are not unusual. I had two similar instances in my old 325. I'm sure BMW are aware of the things, so don't let the dealer give you any bull.
[snapback]220629[/snapback]
[/b][/quote]#


One more thing, a BMW engineer showed me a quick fix. If you pull over, get out put the key in to the drivers lock, lock then unlock then hold key in the unlock position of 10 secs, this can provided a temp fix as I was told it resets the part of the computer sys.

I was stuck on holiday and the car would not even move, saved me a trip home in a tow truck.
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#12 (permalink) Old 10-29-2004, 04:52 PM
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Nice tip, thanks.

The dealer have decided to keephold of the car and to try to fix it finally before handing it back....something led them to believe I was getting to the end of my patience...maybe it was the written letter to BMW UK!

So instead of the 325 Auto Sports Tourer with SatNav & Bluetooth I now get to drive a 318 manual saloon with nothing, for at least a weekend...ho hum!

Let you know if they fix it on Tuesday...cheers all....

Mine's a Guiness.....
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#13 (permalink) Old 10-29-2004, 06:10 PM
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#14 (permalink) Old 11-01-2004, 10:28 AM
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Yes it probably is...but in the UK I'm stuck with it....even if they hit the warranty ceiling and still have not fixed it...consumer protection over here is not always great.

Anyway...5 days they've had it now and no fix.....

Mine's a Guiness.....
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#15 (permalink) Old 11-01-2004, 04:13 PM
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Quote:
Originally posted by Trigati@Nov 1 2004, 09:28 AM
Yes it probably is...but in the UK I'm stuck with it....even if they hit the warranty ceiling and still have not fixed it...consumer protection over here is not always great.

Anyway...5 days they've had it now and no fix.....
[snapback]222187[/snapback]
Yeah but there is a thing called latent defect. If you can prove that this car had the problem before you bought it, the warranty becomes academic and they must either fix it or replace it.
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