2017-2023 Audi Models Air Suspension Fault DTCs B200FF0

Owners of affected 2017-2023 Audi models may notice instrument cluster messages such as "Air suspension: system fault" or "Shock absorber system/suspension." These warnings are often accompanied by diagnostic trouble codes (DTCs) like B200FF0, indicating an internal malfunction within the J775 suspension control unit.

This Technical Service Bulletin (TSB) from Audi provides a specific procedure for technicians to diagnose and attempt to clear these static DTCs, which are stored in the J775 suspension control unit.

Symptoms

If your Audi is experiencing this issue, you may observe the following messages displayed in your instrument cluster:

• "Air suspension: system fault"
• "Shock absorber system/suspension"

These messages alert the driver to a potential problem with the vehicle's air suspension or shock absorber system, which could affect ride comfort and handling.

Fault Codes / DTCs

When diagnosing this condition, technicians will find one or more of the following diagnostic trouble codes (DTCs) logged as static in the J775 suspension control unit (diagnostic address 0074):

Code	Description	Module
B200FF0	Internal malfunction	J775 suspension control unit
B200FF1	Internal malfunction	J775 suspension control unit
B200FF3	Internal malfunction	J775 suspension control unit
B200FF4	Internal malfunction	J775 suspension control unit
B200FF5	Internal malfunction	J775 suspension control unit

The presence of DTC B200FF0, B200FF1, B200FF3, B200FF4, or B200FF5 in the J775 suspension control unit signifies an internal malfunction within this critical component of the suspension system.

Repair Procedure Summary

Audi has outlined a specific service procedure to address these DTCs. This procedure focuses on attempting to clear the fault codes and may resolve the issue without requiring component replacement. If the DTCs, such as Audi e-tron B200FF0, remain static after these steps, further diagnosis using Guided Fault Finding is necessary.

Here are the steps a technician will perform:

1. Unplug the diagnostic connector from the vehicle.
2. Switch off the ignition.
3. Lock the vehicle (ensuring doors, hood, and rear lid are closed).
4. Wait until the vehicle has entered bus sleep mode.
5. Unlock the vehicle.
6. Plug the diagnostic connector back into the vehicle.
7. Switch on the ignition.
8. Attempt to erase the DTCs.

If the DTCs, including B200FF0, are still logged as static after performing these steps, the technician will follow the instructions provided in Guided Fault Finding for further troubleshooting.

Warranty Information

This repair may be covered under warranty, depending on your vehicle's specific circumstances. The claim types for this issue are:

• 110 Up to 48 Months/50,000 miles.
• G10 for Certified Pre-Owned (CPO) vehicles, requiring owner verification.

If your vehicle is outside of any applicable warranty, this Technical Service Bulletin serves as informational guidance only. The service number associated with this bulletin for warranty claims is 4316, with a damage code of 0040. Labor operations for checking the vehicle and initiating bus sleep mode are billed under code 4316 0199 (20 Time Units).

Important Warnings

Audi advises that all part and service references provided in this TSB (2067531) are subject to change and/or removal. Technicians are instructed to always check with the Parts Department and/or ETKA for the latest information and parts bulletins. Additionally, the Repair Manual should be consulted for fasteners, bolts, nuts, and screws that require replacement during any repair.

Source: NHTSA ID 10216015