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 MANUALSAUDI2006A4 QUATTRO SEDAN (8EC) V6-3.2L (BKH)REPAIR AND DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYKEYLESS ENTRY TRANSMITTERKEYLESS ENTRY TRANSMITTER BATTERYSERVICE AND REPAIR
2006 Audi A4 Quattro Sedan (8EC) V6-3.2L (BKH)
Keyless Entry Transmitter Battery: Service and Repair
2006 Audi A4 Quattro Sedan (8EC) V6-3.2L (BKH)SECTION Service and Repair
Central Locking System
- Central locking system in the A4 operates electrically instead of pneumatically as before.
- Actuators in doors are integrated in the door lock and have 2 motors.
- Actuators cannot be replaced separately.
- The first motor locks the door and the second motor locks the interior door mechanism (Safe function).
- Now, doors also can no longer be opened from the interior.
- Actuators of fuel filler flap and rear lid have one motor each and cannot be replaced individually.
- After an accident in which the airbag deploys, the central locking system control module opens any doors which were locked.
- Central locking system control module is located in front of driver's seat, at left, under floor mat.
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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.