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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > What Brake Sensor Brand to Buy?



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      02-08-2012, 01:02 PM   #1
CanadianBMW
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What Brake Sensor Brand to Buy?

I'm looking for new brake sensors for my 2006 323i. I checked out Autohausaz.com and found a few sensors for a good price.

My concern is whether these sensors are junk and if they will likely malfunction at some point.

Does anyone have experience with Uro Parts, Pex, or Bowa brake sensors?
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      02-08-2012, 01:04 PM   #2
Ernerd
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why not buy OEM sensors? i'm sure they're not that much more expensive
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      02-08-2012, 03:13 PM   #3
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From the dealer its around $80 (for both), but online would be around $20. I drive a 323, not a 335, so every dollar saved is a good thing. I am willing to spend the extra though if the cheaper parts are just going to cause issues.

So nobody has purchased aftermarket sensors?
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      02-08-2012, 03:36 PM   #4
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If you feel comfortable without your car telling your car needs pads...cut the existing wire...twist the wires together, electrical tape it, tuck it out the way...Problem solved.
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      02-08-2012, 05:25 PM   #5
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Buy the cheapest brand.
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      02-08-2012, 06:33 PM   #6
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Are there 4 or 2 sensors?
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      02-08-2012, 07:06 PM   #7
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Quote:
Originally Posted by TeamSoloE93 View Post
Are there 4 or 2 sensors?
2.
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      02-09-2012, 02:03 PM   #8
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Quote:
Originally Posted by tscdennab View Post
Buy the cheapest brand.
I have a hard time sensing sarcasm over the Internet. Cheapest brand actually okay?
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      09-23-2012, 09:35 PM   #9
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Quote:
Originally Posted by Bavarian Tech View Post
If you feel comfortable without your car telling your car needs pads...cut the existing wire...twist the wires together, electrical tape it, tuck it out the way...Problem solved.
When you say twist the wires together, you mean actually have them make contact?
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      09-24-2012, 11:09 AM   #10
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I went with URO when I did my front brakes this weekend (rotors, pads and sensors). I'm almost certain I have it on correctly but it is very loose. I believe it's throwing the BRAKE light in my dash too. iDrive says there's an issue with it and to have it inspected. It also won't allow me to reset the mileage for the new pads either. Should have just gone with OEM. Now I'm thinking of just cutting it like some have suggested.
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      09-24-2012, 02:35 PM   #11
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If you want piece of mind, I think OEM sensors are the way to go. It shouldn't be too much more than aftermarket. I also think $80 for a pair is a bit high...try looking at other places like Tischer or ECS Tuning
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      09-24-2012, 02:48 PM   #12
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i bought the cheapest one and they work fine.. It's just a metal pad that when it touches it alerts the car. Not an complicated sensor ..
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      03-04-2013, 11:36 AM   #13
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Thumbs down UROParts sensor...

Okay, here is my take on the aftermarket UROParts brake pad sensor. The problem I have run into is that the male pins inside the white plastic barrel are not aligned properly. The plastic connectors are keyed so that they only fit together one way, but...if the pins are tweaked from the manufacturer, you're screwed. Tried getting the connectors to seat together, not realizing the pins were incorrectly aligned...bent one and the other broke off. The old OE BMW connector still connects perfectly, tried it several times and never an issue.

Further examination of the OE v. UROParts piece, the UROParts pins appear to be very brittle metal folded into a 'U' shape and the way they are seated in the connector seems to allow for easy misalignment or play. On the other hand, the old OE has what appear to be round and solid pins seated in a two part housing. The pins are molded into a center piece which appears to hold them exactly in proper alignment with NO play.

Anyone else had issues with these brake pad wear sensors?

Thinking I need to just call the local dealership and get the OE's?

uro parts, uroparts, brake pad sensor, brake pad wear sensor
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      03-06-2013, 09:06 PM   #14
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URO is what I went with, zero problems to date
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      03-06-2013, 11:50 PM   #15
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I used the PEX that I bought at Autozone. I got it for $25. The cord is about 6" longer than stock. But it works perfectly. It's hard to mess this part up.

For the ones asking about how it works... There's a complete circuit with the signal leaving and returning to the ECU when the sensor is good(this is why hard-wiring the two wires together works safely). When the sensor is worn down, it mechanically creates an open circuit and therefore tripping the lovely brake light on your dash.

If you replaced your sensor and the light is still on, then you need to reset that code via the BC selector on the turn signal. No special tools required, just the know-how. There's a thread on it somewhere on here.
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      03-07-2013, 11:42 AM   #16
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Quote:
Originally Posted by tscdennab View Post
2.
2, they are different front and rear.

I bought them at the dealership for $50 for both. Not the greatest deal, but I needed them -now-.
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      03-07-2013, 10:47 PM   #17
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I would buy an OEM sensor. It will work with the computer (brain) of the car for sure. Any other brand you take the risk it might not interface well with it.

eBay has deals on them. I just picked up one for my wife's X5 for $12.00
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