Audi Q7 Quattro Technical 281114 Date: 110120
Engine Controls - Reduced Performance/DTC's P13D3/P13DC
01 DTC Stored Inside Pressure Sensor Cylinder 2 or 5, Range/Performance P13D3, P13DC, Slightly Reduced Performance
28 11 14
2025155/1
January 20, 2011.
AFFECTED VEHICLES
CONDITION
Slightly reduced performance (especially when lower cetane diesel is used). DTC Stored P13D3 (Sensor for internal pressure of cylinder 2
Implausible signal) and/or, P13DC (Sensor for internal pressure of cylinder 5 Implausible signal). These DTCs should not illuminate the MIL.
TECHNICAL BACKGROUND
The cylinder pressure sensors contained within the glow plugs of cylinders 2 and 5 can develop carbon deposits during normal combustion. The
sensors will read incorrectly and set a DTC.
PRODUCTION SOLUTION
Updated software which will automatically clean the pressure sensors via a special heating strategy.
SERVICE
Perform a visual check of the combination glow plug/pressure sensor. Ensure the electrical connection to the affected sensor is in order.
If nothing unusual is found, replace the affected glow plug sensor. See Repair Manual >> Engine >> Fuel Injection and Glow Plug >> 28
Ignition/Glow Plug System >> Removal and Installation.
1. Update the engine control software via SVM action code 01A022. Follow all instructions in the attached TSB 2011732 00 Software Version
Management (SVM), operating instructions.
Audi Q7 Quattro 227
2. Update the engine control module using the SVM action code as listed in the table above if necessary.
WARRANTY
REQUIRED PARTS AND TOOLS
ADDITIONAL INFORMATION
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
Engine Controls - Reduced Performance/DTC's P13D3/P13DC
01 DTC Stored Inside Pressure Sensor Cylinder 2 or 5, Range/Performance P13D3, P13DC, Slightly Reduced Performance
28 11 14
2025155/1
January 20, 2011.
AFFECTED VEHICLES
CONDITION
Slightly reduced performance (especially when lower cetane diesel is used). DTC Stored P13D3 (Sensor for internal pressure of cylinder 2
Implausible signal) and/or, P13DC (Sensor for internal pressure of cylinder 5 Implausible signal). These DTCs should not illuminate the MIL.
TECHNICAL BACKGROUND
The cylinder pressure sensors contained within the glow plugs of cylinders 2 and 5 can develop carbon deposits during normal combustion. The
sensors will read incorrectly and set a DTC.
PRODUCTION SOLUTION
Updated software which will automatically clean the pressure sensors via a special heating strategy.
SERVICE
Perform a visual check of the combination glow plug/pressure sensor. Ensure the electrical connection to the affected sensor is in order.
If nothing unusual is found, replace the affected glow plug sensor. See Repair Manual >> Engine >> Fuel Injection and Glow Plug >> 28
Ignition/Glow Plug System >> Removal and Installation.
1. Update the engine control software via SVM action code 01A022. Follow all instructions in the attached TSB 2011732 00 Software Version
Management (SVM), operating instructions.
Audi Q7 Quattro 227
2. Update the engine control module using the SVM action code as listed in the table above if necessary.
WARRANTY
REQUIRED PARTS AND TOOLS
ADDITIONAL INFORMATION
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
