SOLVED-Trifecta after drivetrain work???

[upallnight]

Originally Posted by ChevDog1

Probably LEFT rear?

Yep!!!

What I posted in my first post.

If you can't find someone with BMW specific software to scan the X I would recommend that you go and buy the cable and BMW Scanner 1.4 so that you will have it around to do future diagnostic. BMW Scanner 1.4 is the easiest of all the software available to setup on a laptop or computer running windows XP.

[ChevDog1]

Thanks!

I just ordered one from my local NAPA, and will pick it up on my way home tonight. I'll post back after I have installed it.

[bcredliner]

Originally Posted by upallnight

Yep!!!

What I posted in my first post.

If you can't find someone with BMW specific software to scan the X I would recommend that you go and buy the cable and BMW Scanner 1.4 so that you will have it around to do future diagnostic. BMW Scanner 1.4 is the easiest of all the software available to setup on a laptop or computer running windows XP.

upallnight, Are you sure it is the left sensor that sends signal to the speedometer?

The Bentley manual also reads that the right rear speed sensor provides vehicle speed recognition.

[upallnight]

Originally Posted by bcredliner

upallnight, Are you sure it is the left sensor that sends signal to the speedometer?

The Bentley manual also reads that the right rear speed sensor provides vehicle speed recognition.

Yep,
right sensor is for the cruise control
left sensor is for the speedometer.

Don't believe me as ChevDog1 which side he replaced.

[ChevDog1]

My speedo was out, and my cruise control still worked. Replaced the left rear sensor, and the speedo now works.

That being said, the Bently manual is correct in saying that it is deriving a speed signal from the right rear - of course, it it getting a speed signal from all four wheels. But it appears from my experience that the right rear speed signal is used for cruise, while the left rear is used for the speedometer.

As an update - the car made the 35 mile trip to work this morning with no warning lights or other failures - MUCH better than the 2.1 miles I got between the front driveshaft repair and this sensor nonsense. Hopefully I can drive it for at least a few months before working on it again. I'd like to spend some time working on my project truck...

[bcredliner]

Originally Posted by ChevDog1

My speedo was out, and my cruise control still worked. Replaced the left rear sensor, and the speedo now works.

That being said, the Bently manual is correct in saying that it is deriving a speed signal from the right rear - of course, it it getting a speed signal from all four wheels. But it appears from my experience that the right rear speed signal is used for cruise, while the left rear is used for the speedometer.

As an update - the car made the 35 mile trip to work this morning with no warning lights or other failures - MUCH better than the 2.1 miles I got between the front driveshaft repair and this sensor nonsense. Hopefully I can drive it for at least a few months before working on it again. I'd like to spend some time working on my project truck...

I certainly put more faith in actual experience. Sounds like speedometer is working this morning.

I am aware there are sensors on all four wheels The Bentley manual only references the right rear as reading vehicle speed recognition. Vehicle speed recognition must not mean speedometer. I sent an email to Gordon at Bavauto asking why the Blog says right side when X5 owners fix it by changing the left side. I don't believe everything on the internet but I thought Bavauto would be a reliable source. Oopsi.

[bcredliner]

Originally Posted by upallnight

Yep,
right sensor is for the cruise control
left sensor is for the speedometer.

Don't believe me as ChevDog1 which side he replaced.

I didn't say I don't believe you, I merely asked if you were sure. If I thought you were wrong I would have said so.