2016-2026 Audi J775 Suspension Control Unit DTCs B200FF0-B200FF5

Symptoms

Owners of affected Audi vehicles may experience various symptoms related to the suspension and damping systems. The most common indicator is a warning message in the instrument cluster, such as "Air suspension: system fault" or a general message about the shock absorber system/suspension.

Other reported issues include:

• Damper adjustment functionality operating incorrectly or not at all.
• Malfunction display symbols for the shock absorber control system activating or not activating as expected.
• Level control system issues, including automatic level control system malfunctions.
• Automatic damper adjustment not functioning correctly.
• Driving dynamics performance indicator display not activating.

Fault Codes / DTCs

When diagnosing these symptoms, technicians may find one or more of the following Diagnostic Trouble Codes (DTCs) stored as static errors in the J775 suspension control unit (diagnostic address 0074):

Diagnosis and Repair Procedure Summary

Before proceeding with the main repair, Audi recommends checking for the applicability of other related TSBs, specifically TSB 2073034 (Air suspension system fault - DTC C118D01), TSB 2073601 (Safe CP in Cluster w/ DTC U110100; C115E54, U111800), and TSB 2074439 (Safe CP in Cluster w/ DTC U110100; C115E54, U111800).

If the DTCs B200FF0 to B200FF5 are present, the initial diagnostic steps involve attempting to clear the codes:

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 enters 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 Audi J775 B200FF0 and related DTCs remain logged as static after these steps, a virtual replacement of the J775 suspension control unit (diagnostic address 0074) must be performed. This procedure does not involve physically replacing the control unit. If the DTCs are still static after the virtual replacement, further instructions within the Guided Fault Finding (GFF) system should be followed.

Owner Action

If your Audi is displaying an "Air suspension: system fault" message or exhibiting any of the symptoms described, especially if you suspect an Audi J775 B200FF0 code, it is recommended to visit an authorized Audi service center. This Technical Service Bulletin indicates that the issue is a known concern and provides a diagnostic and repair path for technicians. Repairs performed under warranty will typically be free of charge, as outlined in the Audi Warranty Policies and Procedures Manual. This TSB was released for publishing on October 17, 2025.