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Author Topic: ABS and TC light came on, different tire size?  (Read 382 times)

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Jan Suhr

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Re: ABS and TC light came on, different tire size?
« Reply #15 on: 16 April 2018, 14:19:19 »

OK, I have taken her out now to be driven over the summer. Drove 13 km just now and the lights are coming on after about 800 meters. Stopped several times and turned it off. Lights came off every time and back on after about 800 meters.

I suppose that the difference in diameter between rear and front is too large for the ABS ECU to be able to learn how my wheels are.

I'll put on the stock wheels for now and I guess it will behave after that and then I have to get the same diameter tires for the rear.


Thanks



Jan
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Jan Suhr
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Re: ABS and TC light came on, different tire size?
« Reply #16 on: 16 April 2018, 16:41:21 »

If it doesn't behave, then you know you're looking at a new ecu...  ;)
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Jan Suhr

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Re: ABS and TC light came on, different tire size?
« Reply #17 on: 16 April 2018, 18:14:31 »

No fault codes with wheels with the same diameter all around. So nothing wrong with the ECU, just me who doesn't buy the correct tires  :'(

So now I have to order two more tires with the same size as the fronts.

Between the rears and fronts there is about 40-50 mm difference in diameter. Must be too much for the ABS ECU to handle.

At least we know that now.


Jan
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Jan Suhr
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Re: ABS and TC light came on, different tire size?
« Reply #18 on: 16 April 2018, 19:15:38 »

Useful info Jan :y
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