Audi Workshop Service and Repair Manuals

Special tools, testers and auxiliary equipment required

• ◆ Special tool VW 387
• ◆ Dial gauge

• ‒ → Set valve in guide. Valve stem end must be flush with guide. Due to the slight difference in stem diameters, ensure that only an inlet valve is used in the inlet guide and an exhaust valve in the exhaust guide.

Wear limit

• Lateral play: no more than 1.3 mm

Notes:

• ◆ If the wear limit is exceeded, repeat the measurement with new valves. If the wear limit is again exceeded, renew the cylinder head.
• ◆ If the valve is to be renewed as part of a repair, use a new valve for the calculation.