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Home >> Audi >> 2025 >> S4 Premium >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Cylinder Head, VALVETRAIN (Servicing - 6-Cylinder 2.9L; 3.0L 4V TFSI Ea839 Engine) >> 15 Cylinder Head, VALVETRAIN >> Intake And Exhaust Valves >> Valve Guides, Checking >> Procedure

Valve Guides, Checking: Procedure

-- Secure the Dial Gauge - 0-10mm :VAS 6079  on the cylinder head with the Dial Gauge Holder :VW 387  as shown.

Fig 1: Identifying Dial Gauge With Holder
GWWN15-10914Courtesy of AUDI OF AMERICA, LLC

-- Place the valve in the valve guide.

-- Determine the tilting clearance.

-- If the wear limit is exceeded, measure using new valves.

-- Replace the cylinder head if the wear limit is still exceeded. (The valve guides cannot be replaced.)