My new baby the 80 300SD will not go into reverse until the engine is at operating temp. It will go through all forward gears perfectly all the time but will not go into reverse until warm. I havent changed the fluid and filter yet. Is this a good sign that the tranny is going?

Thanks

Don't panic yet, get the fluid and filter changed out first, as those are common causes of shift troubles, and check the pan for unusual debris, a greyish film is normal, but chunks and pieces of fiber clutch material or metal arent. If the fluid and filter won't fix it, I would guess there is probably a lip seal getting old and hard on one of the servos, and the warm fluid is softening it up enough to seal once warm. Anyone else?

I hope ot change the filter sat. Should i use synthtic ATF?

mobil 1 synthetic ATF is expensive stuff but its good. Most of us just use plain ol dex III available at your local parts store for about $1-3 a quart.

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Current:
05 E320 CDI
07 GL320 CDI
08 Sprinter
05 Dodge Cummins
01 Dodge Cummins

Previous
2004 E55 AMG
2002 C32 AMG (#2)
1995 E300
1978 300D
1987 300D
2002 C32 AMG(blown motor :[
1981 300SD
1983 300SD
1987 300SDL
2002 Jetta TDI
1996 S420
1995 S500
1993 190E 2.6
1992 190E 2.3
1985 190E 2.3 5-Speed

When servicing the trans, drain the torque convertor also. Put in a quart of Trans-x.

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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.