Sorry to hear about the accident. We need more information. A picture of the damage would be very helpful. You need to get your insurance company involved to see how they assess the damage. There is a recent thread on this topic concerning a wrecked 240d. It's probably on pages 1-3 of this forum. Look there for additional advice.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13