be459,

What type of vehicle do you drive? I always thought that it would not matter, which gear the car was in, that the tach still should register positive RPMs.
I have two other vehicles, '97 Camery and '88 300E. Both car's tachometers maintain positive RPMs through any gear selection. I have had my 300 CD-T only few weeks, maybe I've just noticed the "0 reverse thing", recently. Is this a standard thing with 300 CDS?

Marks88