Valve Guides, Checking

WARNING: This page is about a different car, the 2022 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Dial Gauge Holder: VW387

Fig 1: Dial Gauge Holder
Courtesy of AUDI OF AMERICA, LLC
Dial Gauge - 0-10mm: VAS6079

Fig 2: Dial Gauge
Courtesy of AUDI OF AMERICA, LLC

Test Sequence

Fig 3: Identifying Dial Gauge With Holder

Courtesy of AUDI OF AMERICA, LLC

-- Insert the valve into guide. The valve stem end must be flush with the guide. Due to differences in valve stem diameter, only use intake valves in intake valve guides, and exhaust valves in exhaust valve guides.

-- Determine the tilting clearance.

Wear Limit

Intake Valve Guide	Exhaust Valve Guide
0.60 mm	0.60 mm

If the wear limit is exceeded, measure again using new valves. If the wear limit is still exceeded, replace the cylinder head.
If the valve is to be replaced as part of a repair, use a new valve for the measurement.