Many dashboard lights after replacing right rear wheel sensor

moderat0r · 10-07-2021, 09:22 PM

Hello All,

Car is Model 323i U1 | Year 2011 SEDAN | Development Code E90 (MUE) | Type PG77

A month ago, I had Traction control not working properly while ON, so I turned Traction control off every time before running car and ran car for 200-300 kilometers.

I got this rear right wheel speed sensor changed
https://www.fcpeuro.com/products/bmw...870076#fitment

and now I have all lights coming up all the time, before changing wheel sensor I saw those lights only 1 time and they went automatically away.

I have above 4 lights on Dash on BMW

--------------------
Following are the codes and diagnostic my friend tried with obd scanner tool.

I tried to erase codes they keep coming back.

Sensor i replaced is this part number 34526762466

Thank you for help

netwolf · 10-09-2021, 04:21 AM

Concentrate on sensor. Way to check

e91Owner · 10-10-2021, 03:25 AM

You need to a little more diagnostics. That fault means that it is not sensing the proper speed from the wheel, but the sensor is not faulty. That doesn't mean that it's not the sensor, though, it could still be bad, just be providing erroneous signals. It may be beneficial to try another sensor just to rule that out as the other problems are more difficult to diagnose.

The first step is to use a scanner with the ability to read out that wheel speed parameter.

It is likely 0. Assuming that it's the case, it could be several problems. My take from your post is that you are not a DIYer, so aside from cleaning the surrounding area and reseating the sensor, the other issues that involve the wheel bearing may be out of your skill level.

Improper installation leading to too large of a gap between the pulse generator and the bearing. This could be that there is rust built up on the exterior, leading it to sit high, contamination in the hole, etc.

10-07-2021, 09:22 PM	#1
moderat0r Private First Class 8 Rep 111 Posts Drives: BMW e90 323i sedan Join Date: Mar 2019 Location: Canada iTrader: (0)	Many dashboard lights after replacing right rear wheel sensor Hello All, Car is Model 323i U1 \| Year 2011 SEDAN \| Development Code E90 (MUE) \| Type PG77 A month ago, I had Traction control not working properly while ON, so I turned Traction control off every time before running car and ran car for 200-300 kilometers. I got this rear right wheel speed sensor changed https://www.fcpeuro.com/products/bmw...870076#fitment and now I have all lights coming up all the time, before changing wheel sensor I saw those lights only 1 time and they went automatically away. I have above 4 lights on Dash on BMW -------------------- Following are the codes and diagnostic my friend tried with obd scanner tool. I tried to erase codes they keep coming back. Sensor i replaced is this part number 34526762466 Thank you for help __________________ \| Model 323i U1 \| Year 2011 SEDAN \| Development Code E90 (MUE) \| Type PG77 \| Miles 95000 Last edited by moderat0r; 10-07-2021 at 10:21 PM..
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10-09-2021, 04:21 AM	#2
netwolf New Member 0 Rep 17 Posts Drives: e90 325d Join Date: Aug 2021 Location: BE iTrader: (0) Garage List 2011 BMW 325d [0.00] 2010 BMW 325i [0.00]	Concentrate on sensor. Way to check
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10-10-2021, 03:25 AM	#3
e91Owner e91Owner 425 Rep 1,130 Posts Drives: 2011 e91 & 2010 e60 Join Date: Mar 2018 Location: Out of the Office iTrader: (0)	You need to a little more diagnostics. That fault means that it is not sensing the proper speed from the wheel, but the sensor is not faulty. That doesn't mean that it's not the sensor, though, it could still be bad, just be providing erroneous signals. It may be beneficial to try another sensor just to rule that out as the other problems are more difficult to diagnose. The first step is to use a scanner with the ability to read out that wheel speed parameter. It is likely 0. Assuming that it's the case, it could be several problems. My take from your post is that you are not a DIYer, so aside from cleaning the surrounding area and reseating the sensor, the other issues that involve the wheel bearing may be out of your skill level. Improper installation leading to too large of a gap between the pulse generator and the bearing. This could be that there is rust built up on the exterior, leading it to sit high, contamination in the hole, etc.
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