2021-2022 Audi A6 Gearbox Malfunction P071800 P276800

Symptoms of Gearbox Malfunction

Owners of affected 2021-2022 Audi vehicles may experience several symptoms related to a gearbox malfunction. These issues often indicate a problem with the DL 382 Transmission. Common complaints include:

• A warning message stating "Gearbox Malfunction” displayed in the instrument cluster.
• The vehicle intermittently fails to shift up or down.
• The vehicle enters limp home mode, limiting performance.
• A message indicating "Reverse gear unavailable” is displayed in the instrument cluster.
• A notification stating “You can continue driving (functions limited)" appears in the instrument cluster.

These symptoms are often accompanied by specific Diagnostic Trouble Codes (DTCs) stored in the transmission control module (TCM), J217.

Diagnostic Trouble Codes (DTCs)

When a gearbox malfunction occurs, technicians may find one or more of the following DTCs stored in the transmission control module (TCM), J217 (address word 0002):

DTC Code	Description	Symptom Code
P071800	"Input/Turbine Speed Sensor 'A' Circuit Intermittent", passive/sporadic	20736
P276800	"Input/Turbine Shaft Speed Sensor 'B' Circuit Intermittent", passive/sporadic	20737
P081100	"Excessive Clutch Slippage", passive/sporadic	20870
P081E00	"Clutch 2 excessive clutch slippage", passive/sporadic	20872

These codes indicate issues with the transmission's speed sensors or clutch operation, leading to the observed symptoms of the Audi A6 P071800 P276800 problem.

Affected Transmissions and Production Dates

This Technical Service Bulletin (TSB) 34 22 60 2067653/2 specifically applies to DL 382 Transmissions manufactured between June 15, 2020, and May 31, 2022. To determine if a transmission falls within this affected range, technicians must check the transmission data stamps. These stamps are located on the bottom of the front differential and the top of the bell housing.

Important Warnings for Diagnosis and Repair

Audi has provided specific instructions for technicians to ensure proper diagnosis and repair, and to prevent unnecessary work. It is crucial to adhere to these guidelines:

• "Do not delete any learned values for the transmission in the TCM during diagnosis."
• "Do not perform the ODIS test plan for replacing transmission during diagnosis or the repair."
• "Do not perform the ODIS test plan for replacing the mechatronics unit during diagnosis or the repair."
• "Do not perform the ODIS test plan for replacing the valve body during diagnosis or the repair."
• "Do not perform any SVM updates to the TCM during diagnosis."

If the DTCs P071800 or P276800 are stored as active/static, this TSB does not apply. In such cases, technicians must follow the ODIS test plan completely, open an Audi Technical Assistance (TAC) Contact, upload the ODIS diagnosis, and contact TAC for repair authorization.

Repair Procedure Summary

For vehicles experiencing the Audi A6 P071800 P276800 issue, the repair procedure depends on the nature of the stored DTCs. If the event memory entries P071800 or P276800 are logged as passive/sporadic, the recommended repair is to replace the transmission control unit J217. This replacement should be performed according to the Workshop Manual.

After the repair, a road test is required to confirm that the concern is resolved. This TSB supersedes Technical Service Bulletin Group 34 number 22-59 dated July 29, 2022.

Required Parts and Tools

To perform the repair, specific parts and tools are required:

• Fasteners, Bolts, Nuts, and Screws: As needed per the Repair Manual (See ETKA/ELSA).
• Control unit for 7 speed gearbox: Quantity 01 (Order to VIN).
• Gasket for oil pan, Plugs, tube from oil pan to transmission cooler: As needed (See ETKA/ELSA).

Always check with your Parts Department and/or ETKA for the latest information and parts bulletins.

Warranty Information

Warranty claims for this issue can be submitted under specific conditions. The claim types are 110 for vehicles up to 48 months/50,000 miles, and G10 for CPO Covered Vehicles, requiring owner verification. If the vehicle is outside of any warranty, this Technical Service Bulletin serves as informational guidance only.

The service number for this repair is 3730, and the damage code is 0040. Labor operations include removing and installing the mechatronic unit (code 3511 19xx) and removing and installing the control unit (code 3481 1950). Diagnostic time (GFF 0150 0000) and road test times (0121 0002 for pre-service and 0121 0004 for post-service) are also specified for warranty claims. All claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review or audit.

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Source: NHTSA ID: 10226247