Just a quick update: I've contacted the Mercedes Benz Veteranen Club Schweiz. We'll see if they have any advice for me.

Further reading about the Swiss MOT hell indicates they look up every detail of the car and check that tires etc. are "original." Pretty sure there is nothing more original than the seats in my wagon.

:/

I think, but haven't confirmed yet, the car also has to be able to pass the pollution standards for Switzerland at its time of production.

And it likely has to be deemed roadworthy by Swiss standards which are, stereotypically, precise and exacting. Oh boy.

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1983 300TD 240k Thistle Green Auto (Euro) [sold]
1984 300D 240k Petrol Green Auto
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