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Service bulletins for the 2020 Audi TT

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

675 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
A0024922031473_52024-10-28. Service bulletin. STRUCTURE:BODY. This bulletin provides informationw hen there are car was brush bristles trapped in the seam between the headlight and fender.
A9324042074808_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content.
A9224402065963_32024-09-06. Service bulletin. VISIBILITY/WIPER. This bulletin provides information on repairing the corrugated hose for the windshield washer system.
A9124462068573_32024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informationw hen the parking aid sensor bracket(s) separates from the rear bumper.
A9124432074929_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin proves information when the bluetooth does not work, adaption channel deactivated.
A9124382074858_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiton when the calendar function is not available; MIB2 and MIB2+.
A4424062074846_12024-09-06. Service bulletin. WHEELS. This bulletin provides information vibrations and rotational steering wheel vibrations.
A4424052074843_12024-09-06. Service bulletin. WHEELS. This bulletin provides information when there is a wheel/tire imbalance.
A3724222074826_12024-09-06. Service bulletin. POWER TRAIN. This bulletin offers information about the basic information needed for technical requests for gaerbox complaints.
A0124342074976_12024-09-06. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides information when there are functional restrictions or driving behavior due to diesel detected in petrol.
A0024902074853_12024-09-06. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides service information ror when the fuel tank cannot be fully filled.
A9324042074808_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content.
A9224402065963_32024-09-06. Service bulletin. VISIBILITY/WIPER. This bulletin provides information on repairing the corrugated hose for the windshield washer system.
A9124462068573_32024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informationw hen the parking aid sensor bracket(s) separates from the rear bumper.
A9124432074929_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin proves information when the bluetooth does not work, adaption channel deactivated.
A9124382074858_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiton when the calendar function is not available; MIB2 and MIB2+.
A4424062074846_12024-09-06. Service bulletin. WHEELS. This bulletin provides information vibrations and rotational steering wheel vibrations.
A4424052074843_12024-09-06. Service bulletin. WHEELS. This bulletin provides information when there is a wheel/tire imbalance.
A3724222074826_12024-09-06. Service bulletin. POWER TRAIN. This bulletin offers information about the basic information needed for technical requests for gaerbox complaints.
A0124342074976_12024-09-06. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides information when there are functional restrictions or driving behavior due to diesel detected in petrol.
A0024902074853_12024-09-06. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides service information ror when the fuel tank cannot be fully filled.
A9124342072959_22024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when Apple CarPlay pops up or takes over audio without user intervention.
A9124322018187_162024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiton when there are speaker rattles, vibrations or audio interference in the sound system.
A8724792067716_22024-08-06. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the air conditioning does not cool.
A8224002041717_102024-08-06. Service bulletin. VISIBILITY/WIPER. This bulletin provides informatin for the GFF test plan that is requied for AC compressor replacements.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.