General body repairs, interior

Checking inertia reel (locking mechanism)

~1min read

The inertia reel has two locking functions.

The first locking function is triggered by the belt being jerked out of the reel (belt extension acceleration).

Test 1

  • Pull belt out of inertia reel with firm jerk.
Will not lock - renew seat belt complete with buckle.
If difficulties are experienced when belt is extended or retracted, first check whether position of inertia reel has been altered.
The second locking function is triggered by a change in vehicle speed (vehicle-dependent locking function).

Test 2

WARNING For safety reasons, the road test should be carried out on a traffic-free stretch to ensure that other road users are not endangered.
  • Put on seat belt.
  • Accelerate vehicle to 20 km/h and then carry out emergency braking with foot brake.
If seat belt is not locked by locking mechanism during braking procedure, renew seat belt complete with buckle.

Visually inspecting belt buckle

Inspect belt buckle for cracks and chips.

If damage is determined, renew seat belt complete with belt buckle.

Test yourself

A quick Volkswagen Golf quiz: every answer comes with an explanation and a link to the manual page.