tyre pressue sensor

bytejunkie · 08-09-2015, 05:31 AM

think i might have disturbed one with the jet washer.

anyone know where they are so i can check?

are they easier to get to without the wheel on?

Tipper · 08-09-2015, 06:43 AM

The TPMS on an E91 uses the ABS sensors to compare wheel revolutions. A soft tyre will have a smaller rolling diameter and hence more revs than other wheels.

Interestingly mine came up yesterday and having checked the tyre pressures are OK it won't reset so I assume I have an ABS sensor fault too. I think you'll have to get the wheels off to check each sensor. Could be dirt on the sensor ring I suppose.

08-09-2015, 05:31 AM	#1
bytejunkie Lieutenant 161 Rep 543 Posts Drives: F31 335d xDrive M Sport Join Date: Apr 2013 Location: Leeds iTrader: (1)	tyre pressue sensor think i might have disturbed one with the jet washer. anyone know where they are so i can check? are they easier to get to without the wheel on?
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08-09-2015, 06:43 AM	#2
Tipper Private First Class 11 Rep 127 Posts Drives: 2007 E91 320d SE auto Join Date: Jan 2009 Location: Devon, UK iTrader: (0)	The TPMS on an E91 uses the ABS sensors to compare wheel revolutions. A soft tyre will have a smaller rolling diameter and hence more revs than other wheels. Interestingly mine came up yesterday and having checked the tyre pressures are OK it won't reset so I assume I have an ABS sensor fault too. I think you'll have to get the wheels off to check each sensor. Could be dirt on the sensor ring I suppose.
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