On both my cars (91 and 92 300D), I've noticed this tendency: if I haven't driven it for a week or more, the throttle is slow to release during the first day of driving, as if something is sticking; feels like cruise control is partially engaged, though it does slow down (just not as quickly as it should).

Throttle linkage stays pretty well lubed. Any idea as to where system might be sticking?

Thanks.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 160k miles
06 E320 CDI "Rutherford", Black on Tan, 180k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 79k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife