Thanks for the great info, leathermang. So if there's a vertical wheel, it's a type 2 or type 3? As long as it's the version with the three knobs, I'm OK (i.e., it's version 1)??

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Alex
1984 300CD - Silver/Blue - 326,000 miles (sold)
1979 240D - Canary/Brown - 221,222 miles (I love this car)