Automatic Belt Retractor, Checking

WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 2017 Audi S5, 2017 Audi A5 Quattro, 2016 Audi S5, 2016 Audi A5 Quattro, and 2015 Audi S5. 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 Belt Being Jerked Out Of The Retractor (Belt Extraction Acceleration).

Checking

-- Pull Belt Webbing Out Of Retractor With A Firm Jerk.

No Locking Effect - Replace Seat Belt Complete With Belt Buckle.
If Difficulties Are Experienced When Pulling Out Or Retracting Belt, First Check Whether Position Of Retractor Has Been Altered.
The Second Locking Function Is Initiated By Change In Vehicle Velocity (Vehicle-Dependent Locking Function).

Test 2

WARNING:

For Safety Reasons, Road Test Should Be Carried Out On Traffic-Free Stretch To Ensure That Other Motorists/Pedestrians Etc. Are Not Endangered.

-- Fasten Seat Belt.

-- Accelerate Vehicle To 20 km/h And Then Perform A Full Braking Maneuver With Foot Brake.

Replace Seat Belt Complete With Seat Belt Latch If Seat Belt Is Not Locked By Locking Mechanism During Braking Procedure.