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Service bulletins for the 2021 Audi e-tron

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.

1220 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Heating and air conditioning are shown. Show all

Bulletins, newest first
A8024152073370_22024-05-06. Service bulletin. ENGINE AND ENGINE COOLING; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin provides information when there is poor, uneven, or no cabin heating output.
AVIN4PIN202403052024-04-05. Service bulletin. EQUIPMENT:ELECTRICAL; UNKNOWN OR OTHER; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:ENGINE COOLANT HOSES AND FITTINGS; STRUCTURE:BODY:DOOR. Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Front window inoperative Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Temp sensor DTC P218500 Corrosion on wheelhouse cover plate P008700 - low fuel pressure P042000: Catalyst System, Bank1 Efficiency Below
A8724702064077_42024-04-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REFRIGERANT HOSES AND FITTINGS. This TSB describes a method for leak detection for R134A and R1234yf refrigerant platforms only.
A8024142073370_12024-04-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin provides information when there is poor, uneven, or no cabin heating output.
A1924542067941_32024-04-04. Service bulletin. UNKNOWN OR OTHER; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:ENGINE COOLANT HOSES AND FITTINGS. This bulletin provides information when the cooling system has a leak from the coolant valve N632.
Dealer 87H92024-03-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. On vehicles manufactured within a specific period, the pressure and temperature sensors in the air conditioning system may fail. If this happens, the air conditioning system will no longer function.
Circular 87H92024-03-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. On vehicles manufactured within a specific period, the pressure and temperature sensors in the air conditioning system may fail. If this happens, the air conditioning system will no longer function.
A9123522072285_12024-01-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin requests that technicians create a record in the Pending Service Solutions database in instances where the air conditioning function favorite on the lower display is lost.
A8723602064077_32023-11-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REFRIGERANT HOSES AND FITTINGS. This TSB describes a method for leak detection for R134A and R1234yf refrigerant platforms only.
A8723552068460_52023-11-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin provides information for when the air conditioning does not cool, DTCs P053000, or P251500 stored in C5.
A8723542071139_22023-09-01. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY. This bulletin provides information for when the HVAC blower setting adjustment is not possible.
A8723512064077_22023-09-01. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This TSB describes a method for leak detection for R134A and R1234yf refrigerant platforms only.
A8723502068460_42023-09-01. Service bulletin. VISIBILITY; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin provides information for when the air conditioning does not cool, DTCs P053000, or P251500 stored in C5.
A8723492063467_52023-09-01. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:COMPRESSOR. This bulletin provides information for when there is noise from the A/C compressor when the air conditioning is active.
A8723452041717_92023-08-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin provides information on the GFF test plan required when replacing the A/C compressor.
A8723402068460_32023-05-05. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin provides information for when the air conditioning system does not cool the cabin and DTCs P053000 and/or P251500 are present.
A5723022058452_42023-04-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin provides information for when the rear window defogger is not operational.
A9123742069112_22023-03-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT:ELECTRICAL. This bulletin provides information on a software update for when saved addresses, favorites, last destinations, HVAC favorite button assignment, and/or icon and shortcut order are lost sporadically; In rare cases the screen may turn completely blue until a bus sleep or an MMI reboot is performed. For Q3 vehicles, MMI may get stuck on the welcome screen. No DTCs are stored.
A9123732069112_12023-03-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT:ELECTRICAL. This bulletin provides information on a software update for when saved addresses, favorites, last destinations, HVAC favorite button assignment, and/or icon and shortcut order are lost sporadically; In rare cases the screen may turn completely blue until a bus sleep or an MMI reboot is performed. For Q3 vehicles, MMI may get stuck on the welcome screen. No DTCs are stored.
A8023122062583_22023-02-07. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin provides instructions for when the customer advises that there is insufficient or uneven cabin heating from the HVAC system.
A8722312063467_42022-09-01. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin contains instructions for addressing a A/C noise with no DTCs.
A8722272041717_82022-06-07. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This informational bulletin details on how to get a GFF test plan for A/C compressor replacements.
A8722252010146172022-05-05. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin contains instructions for properly cleaning and removing a musty odor from the heating and ventilation system.
A8722262063467_32022-05-05. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin contains instructions for addressing a A/C noise with no DTCs.
A8722202063467_22022-04-05. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin contains instructions for addressing a A/C noise with no DTCs.

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