Can modified car interiors pass the annual inspection?
2 Answers
Modifications to the interior of a car will not affect its annual inspection, but external modifications can impact the inspection. The car interior mainly includes the following subsystems: the dashboard system, the auxiliary dashboard system, the door trim panel system, the headliner system, the seat system, the pillar trim panel system, other interior trim components in the cabin, the cabin air circulation system, the trunk interior trim system, the engine compartment interior trim system, carpets, seat belts, airbags, and the steering wheel.
I've specifically researched traffic regulations regarding whether car interior modifications can pass annual inspections. According to the rules, most minor interior changes are acceptable, such as replacing leather seats or changing steering wheel covers that don't affect the vehicle's safety structure. However, modifying fundamental structures will cause problems - for instance, removing seats to reduce seating capacity or installing oversized screens that obstruct dashboard visibility will definitely fail inspection. Steering wheel size modifications must also match original specifications - those small racing steering wheels are non-compliant. I recommend checking local inspection standards before modifying and keeping original parts for easy restoration. The safest approach is to register modifications with the vehicle management office for confirmation, avoiding wasted trips during annual inspections.
