Rear brake service light went off at 21k miles

bdbdbd · 10-02-2010, 01:36 AM

My 325i is at 21k miles and the rear brake service light is already on. I was thinking about DIY it, but i am a noob at these kind of work. Will it be a hard or easy DIY?

Should i go for all BMW parts? or aftermarket brake pads/rotors?

How much do dealer/indy shop charge for rear brake service?

Thanks!

e90pilot · 10-02-2010, 02:16 AM

If you still have ultimate service you can get it done for free. Check they DIY section for instructions. It's pretty easy if you've done brakes before. It's not too bad if you've done them before. The caliper bolts and rotors will be rusted on pretty good. Make sure to get some thread penetrator.

If you don't drive on the track or use brakes a lot, then go with the BMW stuff. Getbmwparts.com has the parts for cheap. Dealer is over $500, and as indy shop might be $300-400.

bdbdbd · 10-02-2010, 03:26 AM

out of warranty. Never done brakes before

These are all the parts that i need?

2x Brake pad :http://www.trademotion.com/partlocat...layCatalogid=0

2x Rotor :http://www.trademotion.com/partlocat...layCatalogid=0

2x sensor :http://www.trademotion.com/partlocat...layCatalogid=0

e90pilot · 10-02-2010, 04:24 AM

Just one sensor. I think the pads come per axel but I'm not sure. Get brake parts cleaner, thread penetrator, and anti-squeek from your local autoparts store. You may not need rotors. If they have a huge lip, then replace them.

bdbdbd · 10-02-2010, 02:51 PM

I only need one sensor for both side of the rear? i kept thinking that is one sensor for each rotor/brake

e90pilot · 10-02-2010, 03:27 PM

Nope it's only on one sensor per axel. I think it's on the passenger side in the back. You'll need to remove 2 screws from fender lining to get to the plug.

brocklanders · 10-02-2010, 05:22 PM

have you had the brakes looked at yet 21k is awfully soon maybe its just a bad sensor or its just a fluid flush or something

bdbdbd · 10-02-2010, 08:35 PM

actually i haven't have it looked at in a while. maybe i will do that before i order the parts. Thanks you both for helping

i will report back soon....

10-02-2010, 01:36 AM	#1
bdbdbd New Member 2 Rep 29 Posts Drives: E90 325i Join Date: Jun 2005 Location: San Gabriel iTrader: (0)	Rear brake service light went off at 21k miles My 325i is at 21k miles and the rear brake service light is already on. I was thinking about DIY it, but i am a noob at these kind of work. Will it be a hard or easy DIY? Should i go for all BMW parts? or aftermarket brake pads/rotors? How much do dealer/indy shop charge for rear brake service? Thanks! Last edited by bdbdbd; 10-02-2010 at 03:19 AM..
	Appreciate 0 Tweet Quote

10-02-2010, 02:16 AM	#2
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	If you still have ultimate service you can get it done for free. Check they DIY section for instructions. It's pretty easy if you've done brakes before. It's not too bad if you've done them before. The caliper bolts and rotors will be rusted on pretty good. Make sure to get some thread penetrator. If you don't drive on the track or use brakes a lot, then go with the BMW stuff. Getbmwparts.com has the parts for cheap. Dealer is over $500, and as indy shop might be $300-400. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
	Appreciate 0 Quote

10-02-2010, 03:26 AM	#3
bdbdbd New Member 2 Rep 29 Posts Drives: E90 325i Join Date: Jun 2005 Location: San Gabriel iTrader: (0)	out of warranty. Never done brakes before These are all the parts that i need? 2x Brake pad :http://www.trademotion.com/partlocat...layCatalogid=0 2x Rotor :http://www.trademotion.com/partlocat...layCatalogid=0 2x sensor :http://www.trademotion.com/partlocat...layCatalogid=0
	Appreciate 0 Quote

10-02-2010, 04:24 AM	#4
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Just one sensor. I think the pads come per axel but I'm not sure. Get brake parts cleaner, thread penetrator, and anti-squeek from your local autoparts store. You may not need rotors. If they have a huge lip, then replace them. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
	Appreciate 0 Quote

10-02-2010, 02:51 PM	#5
bdbdbd New Member 2 Rep 29 Posts Drives: E90 325i Join Date: Jun 2005 Location: San Gabriel iTrader: (0)	I only need one sensor for both side of the rear? i kept thinking that is one sensor for each rotor/brake
	Appreciate 0 Quote

10-02-2010, 03:27 PM	#6
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Nope it's only on one sensor per axel. I think it's on the passenger side in the back. You'll need to remove 2 screws from fender lining to get to the plug. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
	Appreciate 0 Quote

10-02-2010, 05:22 PM	#7
brocklanders Major 106 Rep 1,428 Posts Drives: the uno, mineral white Join Date: Mar 2010 Location: houston iTrader: (3) Garage List 06 325 [0.00]	have you had the brakes looked at yet 21k is awfully soon maybe its just a bad sensor or its just a fluid flush or something
	Appreciate 0 Quote

10-02-2010, 08:35 PM	#8
bdbdbd New Member 2 Rep 29 Posts Drives: E90 325i Join Date: Jun 2005 Location: San Gabriel iTrader: (0)	actually i haven't have it looked at in a while. maybe i will do that before i order the parts. Thanks you both for helping i will report back soon....
	Appreciate 0 Quote