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Brake pad wear sensors

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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DougL
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Brake pad wear sensors

Post by DougL » Sun Sep 12, 2021 7:43 pm

Just checking that there is only one sensor at the front and one at the rear. Is this correct. I have just ordered from autodoc and was expecting each wheel to have a sensor!

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Smartbear
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Brake pad wear sensors

Post by Smartbear » Sun Sep 12, 2021 9:42 pm

DougL wrote: Sun Sep 12, 2021 7:43 pm Just checking that there is only one sensor at the front and one at the rear. Is this correct. I have just ordered from autodoc and was expecting each wheel to have a sensor!
One on each axle :thumbsup:
Rob
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

Pondrew
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Brake pad wear sensors

Post by Pondrew » Sun Sep 12, 2021 11:28 pm

As Rob says, one on each axle. Makes sense as the brakes are linked pressure-wise so they should wear pretty evenly across the axles.

If both your sensors haven't been used, ie haven't touched the disc, they can be re-used if you are very careful when changing them.
All good things come to those who wait. I'm really impatient which explains a lot.

F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!

DougL
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Brake pad wear sensors

Post by DougL » Mon Sep 13, 2021 11:05 am

Thanks guys. I've bought replacements!

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