Going to have to get it to upshift to get the servo to leak, and i recommend driving it. You can do this on jackstands, but if one wheel drags some, the other will be running a twice the speed indicated on the speedo -- can cause a tire to explode if overdone!

Pan can leak hot only, too, this won't show much unless it is blowing back onto the exhaust.

Overfilling will cause tranny fluid to blow out the top vent, too. Usually causes severe slip from foaming and clutch damage, too.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!