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Service bulletins for the 2018 Audi A4

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
A4722162055646_42022-09-01. Service bulletin. SERVICE BRAKES; ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for when the vehicle sporadically does not start and there is a hard brake pedal concern.
A9222302038151122022-08-04. Service bulletin. VISIBILITY:REAR WINDOW WIPER/WASHER. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct.
A6422852020552112022-08-04. Service bulletin. VISIBILITY; EQUIPMENT. This bulletin provides instructions on how to properly clean exterior glass.
A5322052043016_32022-08-03. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM: CABLES:FASTENER/CONNECTOR; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains repair information for when there area cables visible in the passenger compartment of the vehicle.
A4822342065978_22022-08-03. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; STEERING:STEERING WHEEL /HANDLE BAR:HAND HEATER/COOLER. This bulletin explains that the steering wheel may warm up while being held leading to the impression that he steering wheel isn't heating evenly.
A4322652067531_12022-08-03. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION. This bulletin provides steps to address DTCs B200FF0, B200FF1, B200FF3, B200FF4, and B200FF5.
A4022452047920_62022-08-03. Service bulletin. SUSPENSION. The bulletin contains diagnosis information for noises on the front end of the vehicle.
DC91CDOBVideo2022-07-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 91CD Motion for Audi Connect Customer Onboarding Video
DC_91CD2022-07-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 91CD Motion for Audi Connect Customer Onboarding
SM 47-20222022-07-01. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
A9022672059863_32022-07-01. Service bulletin. TIRES; WHEELS. This bulletin advises to ensure that the correct wheels and tires are installed in instances where the Audi pre sense restricted message appears in the absence of DTCs.
A4622332051095_72022-07-01. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin contains instructions on how to download and use the Audi Frequency App.
A4722122055646_32022-07-01. Service bulletin. SERVICE BRAKES. This bulletin contains repair instructions for when the vehicle sporadically does not start and there is a hard brake pedal concern.
A4622322034181212022-07-01. Service bulletin. SERVICE BRAKES. This technical service bulletin provides troubleshooting for brake noise.
A4322632051336_62022-07-01. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM. This bulletin contains repair instructions for DTC B200FF0.
A4322582059665_32022-07-01. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM. This bulletin contains a software update that corrects the control module configuration and addresses a warning light.
A0022562066297_12022-07-01. Service bulletin. EQUIPMENT. This bulletin describes a reporting program for Audi certified technicians.
A9022642059863_22022-06-07. Service bulletin. WHEELS; TIRES. This bulletin advises to ensure that the correct wheels and tires are installed in instances where the Audi pre sense restricted message appears in the absence of DTCs.
A4522262067132_12022-06-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin contains instructions for when the message "Audi pre sense currently restricted. See owner's manual" is displayed in the instrument cluster without DTCs.
DCMobileService2022-06-07. Service bulletin. ELECTRICAL SYSTEM. Mobile Service Opportunity – Battery Module Control Unit Software 93N6 + other campaigns
SM 38-20222022-06-07. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
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.
A6922862051242_62022-06-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for correcting DTC B1225F1.
A4422922022563212022-06-07. Service bulletin. STEERING. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
A4822312055733_32022-05-05. Service bulletin. STEERING. This bulletin contains repair instructions for repositioning the intermediate steering shaft when there is squeaking noises from the steering column.

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