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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 11-26-2013, 05:32 PM
Dawn75 Dawn75 is offline
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Very poor traction control in the rain

Hello, I have a DSC malfunction warning on in my car. I took it to a BMW repair shop a week ago and they hooked it up to the computer and the mechanic said that it wasn't registering anything wrong, but it needed a new computer. He said it was driveable so I didn't get the repair yet. Last weekend I went on a trip and it was raining. Any time I went above 40 mph, my car would begin to fishtail, even in light rain. My tires are fine and I'm from Oregon, so I'm very experienced driving in the rain. Could the DSC be causing poor traction? I've also noticed that the car seems to jolt a little going over uneven spots in the road.
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  #2  
Old 11-26-2013, 05:45 PM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by Dawn75 View Post
Hello, I have a DSC malfunction warning on in my car. I took it to a BMW repair shop a week ago and they hooked it up to the computer and the mechanic said that it wasn't registering anything wrong, but it needed a new computer. He said it was driveable so I didn't get the repair yet. Last weekend I went on a trip and it was raining. Any time I went above 40 mph, my car would begin to fishtail, even in light rain. My tires are fine and I'm from Oregon, so I'm very experienced driving in the rain. Could the DSC be causing poor traction? I've also noticed that the car seems to jolt a little going over uneven spots in the road.

Computers are very reliable - did BMW say exactly why they wanted to replace a very expensive computer?

Lack of DSC is an issue.
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Old 11-26-2013, 05:47 PM
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CALWATERBOY CALWATERBOY is offline
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.

And you should consider a mechanical limited slip differential like Wavetrac.
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Old 11-26-2013, 05:53 PM
ctuna ctuna is offline
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How are your tires?

How are your tires?
Assuming you have an e90 the only year for your
car would be 2006 correct.
Are they properly inflated?
Make model size and how many miles on them.
The original RFT tutanza's got very poor wet ratings.
Also is the suspension modified in any way.
Pictures of treads would be good.
Also roads are extra slick the first time it rains .
If the DSC light went on for a little bit it justs mean DSC is working .

Last edited by ctuna; 11-26-2013 at 06:02 PM.
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Old 11-26-2013, 06:01 PM
Dawn75 Dawn75 is offline
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The mechanic said the computer wasn't working right and that's why I had the warning. The brake light is also on and the brakes are new. Btw, it's a 2006 325i with 65,000 miles on it. The warning has been on consistently for two weeks.
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Old 11-26-2013, 06:15 PM
tim818 tim818 is online now
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I guess your speed/ABS sensors are bad, so ECU cannot enable any traction control. Does not sound like any 'computer issue', but you'll have to read the error code to determine the root cause.

Tim
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Old 11-26-2013, 06:37 PM
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I guess your speed/ABS sensors are bad, so ECU cannot enable any traction control. Does not sound like any 'computer issue', but you'll have to read the error code to determine the root cause.

Tim

NOW you're talkin'.

OP, you should get a 2nd opinion. Really. What codes were found, exactly?
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Old 11-26-2013, 07:36 PM
ctuna ctuna is offline
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Bad brake job maybe?

Bad brake job maybe?
not balanced or catching on one side.
What kind of tires?
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