Operation CHARM: Car repair manuals for everyone.

Cylinder Head Assembly: Testing and Inspection



Checking Cylinder Head For Water-Tightness

(Cylinder head dismantled)





Seal coolant apertures with special tool kit 11 1 490.

Note: Illustration shows cylinder head on cylinder bank 5 to 8.

The following special tools are required for the cylinder head on cylinder bank 1 to 4:
Special tool 11 1 471
Special tool 11 1 477
Special tool 11 1 491
Special tool 11 1 493





Immerse cylinder head in a water bath. Inspection pressure 4.5 bar.
Check cylinder head for escaping air (cracks).

Note: If necessary, add cleaning agent to water bath.