Thread: 300TDI - What else to replace while changing the headgasket?

Originally Posted by Red90

You don’t understand. When they warp, they warp again when heated. Every time.

Of course, when they OVERHEATt. But the whole point of the exercise is to fix it so it doesn't overheat, had my head machined when i did the head gasket along with new viscous clutch and rodded radiator and it ran very cool even in slow off-road conditions.
Anyway lots of TDI owners the skim the head, its common practice - that's why you get it hardness tested first.