Valves, Checking
WARNING: This page is about a different car, the 2023 Volkswagen Arteon. However, it is still accessible from the selected car via links, so may be relevant.
The check procedure is described for a valve as an example.
-- Check the valve at the stem and seat surface for wear grooves.
Requirement
- If considerable wear grooves are noticeable, then the valve must be replaced.
- Valves may not be reworked, it is only allowed to grind.