On my newly-acquired 300SDL, I wanted to figure out how old the battery was. When I provided Interstate with the serial number, they said it was made in 2010, indicated that the "0" indicated the last digit of the year. When I asked if it could be from 2000, she said, "Oh no...it would be dead by now."

Well the PO, who got the car in 2004, assures me he has never put in a battery. So sure enough, it was made in 2000, installed some time prior to 2004. That's one tough battery!

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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

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