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I do have a fJCW (TF97447) with a burnt exhaust valve:
I'm somewhat unsure about the head gasket that I should buy as replacement. There are 0.9mm and 1.2mm. JCW is often associated with the 1.2mm. I measured my old head gasket (4 layer metal) with a digital caliper and I have around 1mm at the edges (metal). Those were the identifiable markings on the gasket in the car: