e90 Red Brake Light and Red Car of Lift - BMW 3-Series (E90 E92) Forum

Bigblack335 · 01-22-2013, 08:08 PM

I have searched the forums and I get mixed answers. Need help.

Red Brake Light and Red Car of Lift need to be reset.

My e90 say it is due for front and rear brakes after I reset them, it says _____ under milage. Red Brake light stays on. Pads have 1/2 of their life left at the least. Can I reset this now?

It seems that every time I try to reset it, the mileage still says ____Mi .

One answer seems to be that I need to replace the sensors and then reset manually? Is this the only way to get both lights off?

Please help. (I have searched and get different lights)

BKV122 · 01-23-2013, 10:21 AM

Seems your sensor is faulty

Bigblack335 · 01-24-2013, 10:41 AM

Yes, it looks that way, ordered new sensors.

Dylanize · 03-07-2013, 09:53 PM

Quote:

Originally Posted by BKV122

Seems your sensor is faulty

I just got my rear rotors replaced a few weeks ago. Today i started the car and got the same lights and warning as the OP. I thought the sensors only measure the brake pads, not rotors? Should i replace the rear sensors? Or do i need to adjust the parking brake?

Thanks in advance.

BillionPa · 03-07-2013, 09:57 PM

they do not measure the rotors

the electrical connection to the sensor may have been disrupted by removing the caliper from the carrier, or it could even be the front brake sensor..

Dylanize · 03-12-2013, 08:50 AM

Quote:

Originally Posted by BillionPa

they do not measure the rotors

the electrical connection to the sensor may have been disrupted by removing the caliper from the carrier, or it could even be the front brake sensor..

So it's probably a bad sensor? If it's anything to do with the brakes CPO won't cover it correct?

BillionPa · 03-12-2013, 07:37 PM

a replacement for a bad or damaged sensor is like $10 aftermarket.

or... you could actually need pads, those are the only 2 reasons that light would come on.

KillaE90 · 03-12-2013, 08:59 PM

Its crazy because i changed both front and rear brake pads along with new sensors and i still get the front brake error. The rear is fine its just the front that is giving me problems. I already tried resetting like a million times

Dylanize · 03-13-2013, 08:12 AM

Quote:

Originally Posted by KillaE90

Its crazy because i changed both front and rear brake pads along with new sensors and i still get the front brake error. The rear is fine its just the front that is giving me problems. I already tried resetting like a million times

I just read in the manual that the brake light could also mean there's a hydraulic brake fluid leak.

BillionPa · 03-13-2013, 09:06 PM

aaaaah, if he changed the pads and pushed the old fluid out the bleed screw, the res could be low. there is a sensor right on the top of the reservoir cap to warn of a low fluid situation, check that and refill if necessary, and then check again every week for a few weeks to see if the level changes.

01-22-2013, 08:08 PM	#1
Bigblack335 Private First Class Drives: 335i 2008 Join Date: Feb 2011 Location: NorCal Posts: 131 iTrader: (1)	e90 Red Brake Light and Red Car of Lift I have searched the forums and I get mixed answers. Need help. Red Brake Light and Red Car of Lift need to be reset. My e90 say it is due for front and rear brakes after I reset them, it says _____ under milage. Red Brake light stays on. Pads have 1/2 of their life left at the least. Can I reset this now? It seems that every time I try to reset it, the mileage still says ____Mi . One answer seems to be that I need to replace the sensors and then reset manually? Is this the only way to get both lights off? Please help. (I have searched and get different lights)
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01-23-2013, 10:21 AM	#2
BKV122 Major Drives: E90 Join Date: Feb 2009 Location: NY Posts: 1,016 iTrader: (1) Garage List 2006 330xi [4.75]	Seems your sensor is faulty __________________ Monaco Blue 330xi - Terra Interior/6-MT/Sport/Premium/Cold/CSL's/M3 Spoiler Lip/Black Kidney's

03-12-2013, 08:59 PM	#8
KillaE90 E90 Drives: E90 325xi Join Date: Oct 2011 Location: Long island Posts: 132 iTrader: (0)	Its crazy because i changed both front and rear brake pads along with new sensors and i still get the front brake error. The rear is fine its just the front that is giving me problems. I already tried resetting like a million times __________________

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01-24-2013, 10:41 AM	#3
Bigblack335 Private First Class Drives: 335i 2008 Join Date: Feb 2011 Location: NorCal Posts: 131 iTrader: (1)	Yes, it looks that way, ordered new sensors.

03-07-2013, 09:57 PM	#5
BillionPa Second Lieutenant Drives: 335i Join Date: Feb 2013 Location: USA Posts: 288 iTrader: (0)	they do not measure the rotors the electrical connection to the sensor may have been disrupted by removing the caliper from the carrier, or it could even be the front brake sensor..

03-12-2013, 07:37 PM	#7
BillionPa Second Lieutenant Drives: 335i Join Date: Feb 2013 Location: USA Posts: 288 iTrader: (0)	a replacement for a bad or damaged sensor is like $10 aftermarket. or... you could actually need pads, those are the only 2 reasons that light would come on.

03-13-2013, 09:06 PM	#10
BillionPa Second Lieutenant Drives: 335i Join Date: Feb 2013 Location: USA Posts: 288 iTrader: (0)	aaaaah, if he changed the pads and pushed the old fluid out the bleed screw, the res could be low. there is a sensor right on the top of the reservoir cap to warn of a low fluid situation, check that and refill if necessary, and then check again every week for a few weeks to see if the level changes.