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.
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HOMESERVICE MANUALSAUDI2005A4 QUATTRO, 4D SEDAN, 3.2 GREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTCOMMUNICATION91 - COMMUNICATIONTELEMATICSTELEPHONE/TELEMATICS CONTROL MODULE J526 , REMOVING AND INSTALLING
2005 Audi A4 Quattro, 4D Sedan, 3.2 G
Telephone/Telematics Control Module J526 , removing and installing
2005 Audi A4 Quattro, 4D Sedan, 3.2 GSECTION Telephone/Telematics Control Module J526 , removing and installing
NOTE:
- The following procedure describes control module removal and installation only.
- If the control module is replaced, the OnStar system needs to be configured and the emergency (backup) battery must be replaced.
- DO NOT exchange Telephone/Telematic Control Modules between vehicles!. Each module contains specific Station Identification (STID) and Electronic Serial Number (ESN) data unique to the VIN. This data is used by OnStar and National Cellular Telephone Network to identify the vehicle and administer the customers account.
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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.