woodepic

Hi everyone,
I've recently been having some issues with my leveling sensors on my S7 with air suspension. Unfortunately, I could not find info online regarding which code corresponds to which sensor. Since I have access to a lift, I decided to figure out which code is which, and share my findings with you. These codes should be applicable to any C7/C7.5 audi, though I've seen people with D4s also reporting the same codes.

Here's my methodology:
I manually detached the leveling sensor linkage from each wheel, one at a time, then took it for a drive (sensor was hanging at the lowest position). When I got a code for a mechanical failure, now I know which code corresponds to which wheel.

Front Left:
455692 - Sensor for Ride-Height
C1048 07 [009] - Mechanical Failure
Confirmed - Tested Since Memory Clear

Front Right:
455693 - Sensor for Ride-Height
C1048 07 [009] - Mechanical Failure
Confirmed - Tested Since Memory Clear

Rear Left:
455694 - Sensor for Ride-Height
C1048 07 [009] - Mechanical Failure
Confirmed - Tested Since Memory Clear

Rear Right:
455695 - Sensor for Ride-Height
C1048 07 [009] - Mechanical Failure
Confirmed - Tested Since Memory Clear


It's worth noting that at one point in time, I also got the code 455688 mechanical failure. I'm not sure which wheel this corresponds to, nor why it is a different code. Perhaps it's another code (for a different type of mechanical failure?) for the front left wheel? I think front left because then FR would be 455689, RL would be 455690, and RR would be 455691, allowing for the codes I previously showed (455692, 455693, 455934, 455695) to continue sequentially. Though I'm not sure.

Also it's worth noting that my problem on my car was actually with the FR, so perhaps this mystery code corresponds to that? I'm not sure.

Edit:
As per this thread, I found more info that may also help:
452874 / C1035 15 009 (Front Right Sensor)
198666 / C1034 15 009 (Front Left Sensor)
198154 / C1036 15 009 (Rear Left Sensor)
198410 / C1037 15 009 (Rear Right Sensor)

izno77

Merci pour ses infos elles sont d'une grande utilités sais tu si sur A6 C7 cela correspond car j'ai aussi les mêmes code defauts.

woodepic

Yes, these should be the same codes! (Assuming you have air suspension.)

izno77

oui j'ai bien la suspension pneumatique et malheureusement Audi n'arrive pas a determiner lequel est en cause voici mon rapport via VCDS

woodepic

Yes that is the same code I received on my car when testing. You have a problem with the rear left (when sitting in the car facing forward, it is your rear left) sensor. You will likely need to buy a new sensor to fix that. Mine was physically ceased.

izno77

Le mien me pose problème quand je suis sur autoroute je n'ai pas de défaut quand je roule sur national je vais voir pour le changer à savoir que 3 capteurs a déjà été changé sur ma voiture il ne reste plus que celui la, mais comme je n'avais pas l'info a quoi correspondais les defauts même en passant chez Audi !!
Merci en tout cas pour ton aide précieuse

woodepic

You're welcome! I'm glad I can help someone through the same issue I had!

izno77

Woodepic je te confirme bien dans mon cas que 455694 est bien l' arriere Gauche je l'ai changé depuis c'est bon pourvu que ca dur

Merci encore tu m'a vraiment bien aidé ça faisait 6 mois que je n'arrivais pas a trouver cette panne

Good Job

izno77

c'est pour te dire même Audi n'arrivais pas a trouver la panne !!

woodepic

That's great! Enjoy your car.