DSC error after replacing lots of stuff

[paramax55]

I hit a curb. So, lets get that out of the way... It bent the right wishbone and knocked everything associated out of whack (the front tires were pointing in different directions). For the price I expected to pay for a wishbone, I was able to get a 10 piece kit that had all of the front end stuff for both sides. I figured this would be a good time to do a bunch of stuff I never felt like doing.

One thing led to another... While I was doing all of the suspension stuff, I also did a left, front wheel bearing and both front wheel speed sensors. Oh yeah, it turns out the battery was shot so I replaced that, too. Because, science, I didn't take it for a test drive until I replaced everything.

The DSC kept trying to kick in as soon as I would come off idle. The car would move fine while idling, but as soon as I came off idle, the brakes would start pumping and the faster I went, the worse it got. The car was trying to keep me from moving. After about a mile, the DSC disengaged, it gave me an error, and the car drove as normal.

The new wheel speed sensors were a little different than the old ones. They were smaller in diameter and flat at the tip instead of angled. I also had to put 3 little washers on the mounting screw because it would bottom out before engaging the sensor. They had the same electrical plug as the old ones.

Did someone send me the wrong wheel speed sensors? Are they not reading my bearings?

2006 X5
3.0 gasoline
5 speed manual

[wpoll]

Couple of things could be at play here. One, the sensors don't sound right - they should have been direct replacements - no modifications required - and the washers you have used have possibly set an incorrect airgap on the sensors.



And two, the front wheel bearing has the "tone ring" (reluctor wheel) built into it, usually only on one side, so if it is installed backwards, the wheel speed sensor has nothing to detect.



The side with the chamfer must point inwards (towards the centre of the car).

[andrewwynn]

Wheel speed sensors are very finicky. You cannot shim them and expect them to work. use real OEM to figure out the exact model you need.

[paramax55]

I think the wheel speed sensors are wrong. I used real OEM and ordered them by part number, but that doesn't mean that online sellers give a flip. I ordered more that should be here today. When I was ordering them, I could see that there were about three different styles out there and only one of them matched mine.

I made sure to put the wheel bearing in the right way. And I didn't shim the sensors. I put the washers on the back side - effectively shortening the screw.

Thanks for the replies

[paramax55]

It was the wheel speed sensors. It's surprisingly difficult to get the correct ones. The correct, CHEAP ones anyway...

[andrewwynn]

I've had good luck with some knock off Amazon sensors.


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