2000 300M transmission problem!!!!!
 

When my car is cold, the transmission may not work - the RPM goes up, but the car won't move forward or reverse. Only above 2000 RPM transmission "puts" in first gear and starts to drive! When i manually put it in autostick it shows 2nd gear.
Feels like there would be no pressure in the gearbox while it is cold. Could the cause of this problem be a poor trnsmission oil?
What are the symptoms when a speed sensor ir damaged?