What must you check when regularly inspecting your vehicle’s tyres?

When inspecting your vehicle's tyres, it's essential to check air pressure, tread depth, and for external damage, as all three factors significantly affect safety on the road.

1. **Air Pressure**: Proper tyre pressure ensures better grip, fuel efficiency, and avoids tyre wear or blowouts. Under-inflated or over-inflated tyres can lead to handling issues or increased stopping distances.

2. **Tread Depth**: The tread depth is crucial for maintaining traction, especially in wet conditions. In Germany, the minimum legal tread depth is 1.6 mm. However, for optimal safety, many experts recommend changing tyres when the tread reaches 3 mm.

3. **External Damage**: Checking for cuts, punctures, or bulges is vital, as any damage could lead to a tyre failure while driving. Regular visual inspections can help identify these issues before they become serious.

In Germany, vehicle owners are responsible for ensuring their vehicles are in a roadworthy condition, and these checks are part of routine maintenance to comply with safety regulations. Neglecting any of these checks could result in fines or increased risk of accidents.