One thing to check is the sensor is positioned correctly, if the arm is somehow inverted you'll get reverse readings and commands. You can just about see by looking underneath and feeling, not compulsory to take the rear, left wheel off.

 

Hello. Looking for some advise. I am a 1st time bmw owner. Just purchased a 2006 520d touring e61. The rear right suspension recently just fell all the way down. Was told by the mechanic i need a suspension air bag, ride height sensor and ride height sensor link. Managed to get the 1st two items but i cannot find the ride height sensor link. I have seen the image below but when searching for it online. It mentions rear headlight sensor, they look the same. Pardon my ignorance. Does this link govern the suspension and the headlight or am I missing the part i need. I appreciate your help and thanks in advance.

 

There are two rear level sensors which are identical (#6), but have specific left and right brackets (#7), and identical linkages to connect the sensor to the rear control arms (#9). What you're referring to as "ride height sensor link" could be number #9 in the figure below, which is the black part with two ball and socket fasteners which connect the sensor to the suspension arm. The rear sensors interact with the suspension height control only.

The front ride height sensor - there is only one on the right side (#1) provides information for the adaptive headlights.


Ride height sensors.
The part numbers shown were generated for my 2010 535xiT - you should double check your year and model on RealOEM to ensure there are not different part numbers (most likely the same, but wouldn't hurt to verify.

Good luck with this. Let us know how you make out with it.

 

Hi there,
I'm a new member, and have now owned my 08 535XI wagon for about a year. Perhaps unsurprisingly in Seattle I got the "water in trunk" issue and am now working with great mechanic in Anacortes to replace the damaged modules and get it back on the road. We have encountered exactly the backwards reading rear sensor issue as described by Redheep in the original post on this thread. We are trying to track down another module, but curious if anyone has found another solution?
Thanks
/t

 

The first replacement ride height ECU i used came from a 7-series E66. Either the controller was bad, or it broke when putting it in because I later discovered I still had corroded and potentially shorted pins in the connectors in the car.

I replaced the ECU again with a controller that was pulled out of an E61 and it works now as expected. I dissembled each connector, and clean each individual pin. So my working theory is that suspect wiring killed the replacement ECU, or these ECU from other models, despite having the same part number and firmware, may be configured differently. I could never find a difference in INPA, but that doesn't mean there isn't a parameter there that I cant see with my version of the software.

My advice is to clean the hell out of connectors. Replace the compressor and airbag solenoid relays if they look suspect as all. And replace the RH ECU if it has any sign of water damage or corrosion.

FWIW I also had to replace my PDC ECU as well.

 

Hi all,

my car needs a new right sensor and currently ordering the new sensor.

my mechanic has just said it needs a new sensor on the right but the realoem diagram has confused me.

is there two ride height sensors on the right rear of the car or one?

thanks

 

Not directly addressing the sensor question but…

I was able to fix my system with a new module from eBay. I was careful to match the serial numbers and dates carefully with the module in my car. Seller indicated it was out of a 535 wagon. I was able to just plug it in and avoid programming it. Works perfectly now.

 

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