Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
General information
On vehicles with Telematics, activate Telephone/Telematics Control Module J526 service mode before disconnecting Battery A → Service mode, activating/deactivating .
If the Battery A is reconnected, follow the procedure for disconnecting and connecting the Battery A → - 27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL . Deactivate Telephone/Telematics Control Module J526 service mode → Service mode, activating/deactivating .
Description
The Radio Navigation System (RNS) combines the functions of a navigation system with those of a vehicle radio.
The system consists of:
- Radio receiver part
- 5-inch color display
- Navigation system with angular acceleration sensor
- CD drive for navigation system
- Navigation System Antenna R50 connection
- Antenna Selection Control Module J515 / Left Antenna Module R108 connection
Enhancements:
- CD Changer R41 connection
- Navigation/TV Tuner J415 connection
Notes
Additional information Navigation system plus operating instructions.
For CD preparation, the CD changer R41 wiring harness is already installed in the vehicle. The connecting wire can only be used with genuine Audi CD-changers R41.
Diagnosis is performed using "Guided Fault-Finding".
Repairs on antenna wires → - 97 WIRING .
Repair to CAN bus lines → - 97 WIRING .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.