A6 Allroad Suspension Fault Codes

[Allroad_2013]

Our 2013 A6 C7 Allroad (245) has thrown a suspension wobbly (again).

The output from OBDU output is as follows:

34 Chassis Control

System description: LUFE-DAEMPFER
Software number: 4G0907553F
Software version: 0782
Hardware number: 4G0907553F
Hardware version: H18
Serial number: '
ODX name: EV_AirSuspe
ODX version: 003024
Long coding: 008001

Trouble codes:
C104600 - Level control system
Intermittent
Date: 2025-10-24 15:07:44
Mileage: 195350 km
Priority: 2
Malfunction frequency counter: 1
Unlearning counter: 83
C104807 - Level control system sensor mechanical malfunction
Intermittent
Date: 2025-10-24 11:26:09
Mileage: 195344 km
Priority: 2
Malfunction frequency counter: 2
Unlearning counter: 83
C10C800 - Function deactivation active
Intermittent
Date: 2025-10-18 09:05:31
Mileage: 195116 km
Priority: 6
Malfunction frequency counter: 7
Unlearning counter: 83
C1031F1 - Level control pressure sensor Residual pressure for lowering rear axle too
low
Intermittent
Date: 2025-10-24 15:05:49
Mileage: 195349 km
Priority: 6
Malfunction frequency counter: 3
Unlearning counter: 83

This looks like a suspension sensor problem, but not sure what the C1031F1 error means.

Also, on the LLL Parts website, I can't find any rear suspension sensors listed (or shown), anyone have any idea why not?

[Crasher]

Check the level sensor crank arms for breakage or seizure.