G29 M40I Ride Height Sensor Fault

[Robertsm66]

Hi
Anyone seen this issue before ? After 5 mins of driving i get a chassis DTC, which is rear left ride height sensor implausible value.

I've checked all connections and contacts etc but can find anything visibly wrong.

I've just had my vehicle lowered using AC schnitzer springs which has triggered the fault but the garage has no idea!

Thanks in advance

Rob

 

[q96169we]

Potentially, you will need the ISTA-D to recalibrate the ride height sensor as you've lowered the car and the computer is still thinking it's in the ride height from factory.

 

[Robertsm66]

Thanks, I have a Autel commercial grade tool it goes through the process but won't write the new values to the ECU.

I'll buy a copy of Ista-d and see if I can sort it.

 

[q96169we]

Not sure how ACS works but whether the ACS approved fitter should sort this for you, or ACS's warranty should cover this if it can't be sorted? :tumbleweed:

About ISTA-D, unless you buy from BMW or its authorised retailer (I don't think they sell to individuals), other sellers simply download, sell and make money from the freely available software which is the results from many volunteers' hard work. So, it's not recommanded. But it's your choice and this is just FYI.