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Old 12-29-2012, 10:27 PM
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bluebee bluebee is offline
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Join Date: Mar 2008
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In the E38 forum, this highly pictorial 2012 DIY for replacing wheel speed sensors may come in handy:
- DIY Wheel Speed Sensor Replace

Quote:
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04-03-2012, 03:08 PM
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Miss BimmerLV
S P O I L E D
BMW CCA Member
Join Date: Jan 2011
Location: La$ Vega$, Nevada
Cars: Left / Right Foot
Posts: 2,122


DIY Wheel Speed Sensor Replace


Hi there....


Does your "DSC" , "ABS" and/or "Brake" Light illuminate ???

Do you feel a funky motion on your brake pedal????

Chances are...you Wheel Speed Sensor Needs replacing.


& Today I will teach you how to do so...

So lets get started!


You Will Need:

Some Hex wrenches, Some Dielectric Grease....and of course some Wheel Speed Sensors!







* Alright...so when your cluster looks like this..its time to do something about it.



* Pop the wheel of your choice off...For TODAYS example....we will be doing BOTH FRONT wheel sensors... Jack the car up....and turn the wheel FARTHEST to the side you will be working on. This will give you the ULTIMATE clearance you need to work!



* BEHIND the wheel hub...you will find ONE, 5mm Hex bolt. Undo the bolt....and you might have to wiggle the sensor a bit to ajar it loose...No pressure...just take your time. You some pliers if you have to!





* Next......Follow the sensor wire up a bit..you will find that is its snuggled into place out of harms way...simply remove from the holding bracket.



* Once you remove the sensor from below....you will find that YEARS of road grime have accumulated. REMOVE will wire brush.





( So fresh and so clean clean! )



* Once you have taken care of down below. Its time to TOTALLY remove the sensor. Locate the junction box housing BOTH the Brake Sensor AND Wheel sensor plug. Pry the tabs to open the box.



* Locate the DARKER colored connector. THAT is your wheel speed sensor.



* The connection is held in place by a REALLY small tab. Chances are..after YEARS of road grime..and water..and dirt...it will prolly just CRUMBLE away like mine did. So PLEASE PLEASE PLEASE be gentle. Worse case scenario ....You will have to order NEW connectors all around. ( Like someone else I know! )



* Simply disconnect...and insert the NEW sensor. Make sure you have a good connection with a "SNAP" Then before you replace the sensor on the bottom..place a dollop of dielectric grease to smooth things over.





* Now route the cable accordingly..Place your Wheel back on....and guess what....




You DONE!!!!!!


The OLD Sensors....CRACKED and brittle EVERYWHERE. No wonder the ABS light kept flickin on and off!





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