Check the following on the lock pin head regularly:
- whether it rotates to both positions in the lock pin body freely;
- it must be easy to pull out in the axial direction.
- Check the towing hitch function and fixation to the vehicle frame.
- If the towing hitch is not used frequently, it is advisable to protect it with a packing against contamination.
- After every six years, have the towing hitch checked in a qualified authorized service.
- Should you not use the towing hitch for a long time, wrap it up to protect it from pollution.