Automatic Belt Retractor (Locking Function), Checking
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2021 Audi S8, 2021 Audi A8 e Quattro, 2021 Audi A8 Quattro, 2020 Audi S8, and 2020 Audi A8 e Quattro. However, it is still accessible from the selected car via links, so may be relevant.
The automatic belt retractor has two locking functions.
- The first locking function is initiated by the belt being jerked out of the automatic belt retractor (belt extraction acceleration).
Test 1
-- Pull the seat belt webbing out of the automatic belt retractor with a firm jerk.
- No locking effect - replace the entire seat belt with seat belt latch.
- If difficulties are experienced when pulling out or retracting belt, first check whether position of the belt retractor has been altered.
- The second locking function is initiated by change in vehicle velocity (vehicle-dependent locking function).
Test 2
- For safety reasons, road test should be carried out on traffic-free stretch to ensure that other drivers/pedestrians etc. are not endangered.
-- Fasten the seat belt.
-- Accelerate the vehicle to 20 km/h and then perform a hard braking maneuver with the foot brake.
- Replace the entire seat belt with the seat belt latch if the seat belt is not locked by locking mechanism during the braking procedure.