I have a 99 E320 with 185k. Last week when I was on the freeway I noticed it took several miles before the car shifted into overdrive. It happened 2 of the 3 times I got on the freeway. The 2 times it did it the temp. outside was about 50 degrees. The 1 time it went right into overdrive it was about 70 degrees.

In Feb 2006 when I got the oil changed they said the shift bushings were gone. I didn't fix them because they said it was not critical to fix them right away. Any thoughts?