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.
Central locking system, servicing: Notes
1996 Audi A4 Base, StandardSECTION Notes
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
- Unlike the previous system, which was pneumatically operated, the new generation central locking system operates using electric motors.
- The lock actuators in the doors are integrated in the lock and have 2 electric motors.
- The lock actuators cannot be replaced separately.
- The first electric motor locks the door and the second electric motor locks the interior door mechanism ("Safe" function).
- Locked doors can no longer be opened from inside the car.
- The lock actuators for the fuel filler flap and rear lid each have one electric motor, and can be replaced separately.
- After an accident involving activation of the airbag, the control module for central locking will unlock any active door locks.
- The control module for central locking is located inside a protective box in floor cavity beneath driver's seat and carpet, in front of floor pan crossmember.
RENDER: 1.0x
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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.