Could be an opportunity to get a good deal. When my daughter was in possession of my 92 300D, she filled an almost empty tank with gasoline. Car ran for ten minutes or so then died. Indie drained tank, replaced filters, etc. and it's run perfectly ever since....that was about 25,000 miles ago.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles
06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife