It is usually not too difficult to get heat from a 617 powered car especially if it is the type with the horizontal buttons on the dash. Usual problems are the mono-valve, and/or the solder connections inside the push-button box. On the other hand the A/C can be a lot more of a challenge, and will usually be more expensive to get operational. There are a lot of components and of course the 'freon' issue.

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1961 190Db retired
1968 220D/8 325,000
1983 300D 164,150