I picked up a used 2004 sprinter last week w 204K miles. Fleet vehicle. Checked against the list of the usual 04 sprinter issues listed on this forum, test drove it about 10 miles, freeway and local. All was ok. Drove it 70 miles home, all was well until I got off the freeway. Then the trans would not hook up or shift from drive to lower gears. Pulled over, let it sit for 4 min. Started, and it ran a few blocks, same symptoms. At some point, the check engine light came on. Made it home using this system, about 1 mile. Let it sit overnight. Warmed it up for a few minutes. Checked oil level after it was warm. Was about 1.5 quarts low. Added red line d4 as thats all thats available on the weekend hereabouts. Added .75 quart. Took a drive, made it about a mile same symptoms. There is a whine when shifting manually in drive when its working, then it stops shifting into the lower gears. Shutting the engine down for a little as 1 min restores temporary driveability. Any suggestions? Got it cheap so Im expecting some repair. Thanks