I have had no previous trouble with the transmission. Now it flares instead of shifting into fourth gear. I have to move the shift lever down a notch to keep the car moving. If I move the shift lever back up to "D", it flares again. All other functions are OK. The fluid level is correct. However, it is overdue for a fluid/filter change. What are the chances that fresh fluid and filter will solve this? Is there anything else to look for?

Thanks,

__________________
Bruce

73 220D (never left Germany)
81 300D (totaled)
84 300D (Purchased '03, sold '17)
85 300SD (purchased 10/01/03)