2021-2024 Audi Gearbox Malfunction TSB P071800 P276800

Symptoms of a Gearbox Malfunction

Owners of affected 2021-2024 Audi vehicles may experience several symptoms indicating a gearbox issue. The most common is the message "Gearbox Malfunction" displayed in the instrument cluster. You might also see "Reverse gear unavailable" or "You can continue driving (functions limited)".

Beyond warning messages, the vehicle might exhibit functional problems such as a complete loss of power or intermittently failing to shift gears up or down. In some cases, the vehicle may enter a "limp home mode," restricting performance to prevent further damage. These symptoms are often linked to the Audi gearbox malfunction P071800 or P276800.

Associated Diagnostic Trouble Codes (DTCs)

When these gearbox issues occur, the transmission control module (TCM), identified as J217 (address word 0002), typically stores specific diagnostic trouble codes. These codes help technicians pinpoint the nature of the problem.

DTC Code	Description	Symptom Code
P071800	"Input/Turbine Speed Sensor 'A' Circuit Intermittent"	20736
P276800	"Input/Turbine Shaft Speed Sensor 'B' Circuit Intermittent"	20737
278700	"Clutch Temperature too High"	20882
P081100	"Excessive Clutch Slippage"	20870
P081E00	"Clutch 2 excessive clutch slippage"	20872

Important Transmission Production Date Information

This Technical Service Bulletin (TSB) 2067653/9 is highly specific regarding the transmission's manufacturing date. Owners and technicians must be aware of the following critical conditions:

• This TSB only applies to a specific date range of the transmission. If the manufacturing date of the transmission is not within the affected range, this TSB does not apply.
• The transmission must have been built between June 15, 2020, and November 30, 2023. Transmissions manufactured outside this production date range are not covered by this TSB.
• If the event memory entry "P071800 – Input/Turbine Speed Sensor 'A' Circuit Intermittent" is stored as active/static, the repair described in this TSB does not apply. In such cases, the ODIS test plan must be followed completely and accurately.
• Similarly, if "P276800 – Input/Turbine Shaft Speed Sensor 'B' Circuit Intermittent" is stored as active/static, this TSB's repair is not applicable, and the ODIS test plan should be followed.
• The transmission control unit (J217) is not available as a separate part for some vehicle versions. In these instances, the entire mechatronic unit, which includes the control unit, must be replaced.

Repair Procedure Summary

For an Audi gearbox malfunction P071800 or P276800, the repair process involves several key steps:

1. Verify Complaint: The technician will first attempt to reproduce the customer's reported issue and confirm the presence of the relevant DTCs.
2. Check Transmission Production Date: Crucially, the transmission's production date must fall between June 15, 2020, and November 30, 2023, for this TSB to be applicable. This date can be found on data stamps located on the transmission.
3. DTC Analysis: If DTC P071800, P276800, or P278700 is logged as passive/sporadic, the transmission control unit (TCM), J217, should be replaced. The "Replace control module" test program must be used during this process.
4. Mechatronic Unit Replacement: For certain vehicle configurations where the TCM is not available as a standalone part, the entire mechatronic unit, which integrates the control unit, will need replacement.
5. Post-Repair Test Drive: After the repair, a test drive is required to confirm that the concern is resolved.

Required Parts and Tools

Technicians will need to consult ETKA and ELSA for the most current information on parts and bulletins. Specific items that may be required include:

• Fasteners, bolts, nuts, and screws as specified in the Repair Manual.
• A control unit for the 7-speed gearbox, if necessary (ordered to VIN).
• Gasket for the oil pan, plugs, and tube from the oil pan to the transmission cooler, if necessary (ordered to VIN).

Warranty Information

This Technical Service Bulletin (TSB) 2067653/9 provides guidelines for warranty claims. If the vehicle is outside its warranty period, this bulletin serves as informational guidance only.

• Service Number: 3511
• Damage Code: 0040
• Labor Operations:
  • Remove and install mechatronic unit: 3511 19xx
  • Remove and install control unit: 3481 1950
  • GFF (Guided Fault Finding): 0150 0060
  • Road test prior to service: 0121 0002
  • Road test after service: 0121 0004
  • Charge battery: 2706 8950
• Claim Comment: "As per TSB 2067653/9"

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review by Audi Warranty.

Revision History

This TSB has undergone several revisions to ensure accuracy and completeness:

• Revision 9: Added parts information.
• Revision 8 (July 3, 2024): Revised the condition and service sections, including additional event memory entries.
• Revision 7 (May 22, 2024): Updated gearbox production date information and revised warranty details, including battery charge.

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Source: NHTSA ID: 11009933