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Service bulletins for the 2018 Audi A5

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.

1061 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
A3724172074804_12024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information for when there are dorning/vibrations in tight bends - 0CL Gearbox.
A3724142074751_12024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information about replacing the clutch end cover.
A3724132074750_12024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information about replacing the clutch end cover.
A3424712074761_12024-08-06. Service bulletin. POWER TRAIN. This bulletin provides informion for when there is difficulty changing gear/complaints about changing gear - 1st and/or 2nd gear.
A2424612074810_12024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information when there is a fault shown; Engine: start/stop system, and the start system is not working; mileage below 50 km/32 miles.
A3924602059057_82024-05-06. Service bulletin. POWER TRAIN. This bulletin provides information when there is binding or vibrations in tight turns in vehicles equipped with quattro Ultra.
A3924582059057_72024-03-06. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). This bulletin provides information when quattro Ultra has vibrations or binding in tight turns.
A3923552059129_42023-10-05. Service bulletin. POWER TRAIN. This bulletin provides information for when there are noises and/or vibrations in tight turns.
A3423632070167_12023-06-06. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This bulletin provides instructions for when DTC P1A5B00 is stored after replacing the transmission control module or valve body for another concern.
A3022312053597_62023-01-06. Service bulletin. POWER TRAIN. This bulletin contains repair instructions for when there is a leak from the lower bellhousing.
A3422562060242_32022-05-05. Service bulletin. POWER TRAIN. This bulletin contains instructions for when DTC P071800 and P081100 are stored with various transmission issues.
A3422542060242_22022-04-05. Service bulletin. POWER TRAIN. This bulletin contains instructions for when DTC P071800 and P081100 are stored with various transmission issues.
A3421532064848_12021-11-05. Service bulletin. POWER TRAIN. This bulletin addresses an issue where basic settings cannot be performed as DTC P17F900 is stored in the TCM.
A3020302053597_52020-12-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains repair instructions for when there is a leak from the lower bellhousing.
A3920352051558_42020-09-03. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00.
A3020282053597_42020-09-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT; POWER TRAIN:CLUTCH ASSEMBLY:BELL HOUSING. This bulletin contains repair instructions for when there is a leak from the lower bellhousing.
A3420482060242_12020-09-03. Service bulletin. POWER TRAIN. This bulletin contains instructions for when DTC P071800 and P081100 are stored with various transmission issues.
A3020272060101_22020-08-06. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:GEARS. This bulletin contains instructions for DTCs P181C00, P181E00, and P181E00 with Start-Stop not working or a message appearing.
A3920342060169_12020-08-06. Service bulletin. EQUIPMENT; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. This bulletin contains instructions for when DTC U101300 is logged with sports differential warning lamps or messages.
A3020262060101_12020-08-06. Service bulletin. ENGINE; POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:GEARS. This bulletin contains instructions for DTCs P181C00, P181E00, and P181E00 with Start-Stop not working or a message appearing.
A3420462058928_12020-04-02. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL). This bulletin contains instructions for recalibrating the gear sensor when the 'P' displays begin to flicker on the selector display and in the instrument cluster display.
A3019252053597_32019-07-09. Service bulletin. POWER TRAIN. This bulletin contains repair instructions for when there is a leak from the lower bellhousing.
A3019242053597_22019-06-06. Service bulletin. POWER TRAIN. This bulletin contains repair instructions for when there is a leak from the lower bellhousing.
A3419402050115_42019-05-06. Service bulletin. POWER TRAIN. This bulletin contains repair instructions for when an oil leak is present around the ATF sump. Also includes 2018 A5 Sportback.
A301923 20535972019-04-08. Service bulletin. POWER TRAIN. This bulletin contains repair instructions for when there is a leak from the lower bellhousing.

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