Author Topic: Auto won't shift into 3rd and 4th  (Read 3493 times)

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Auto won't shift into 3rd and 4th
« on: October 28, 2003, 22:20:11 »
280SL automatic operates normally when selector placed in 2 (low). Shifts from first to second. If selector is placed in 3 or 4th, keeps jumping into lower gear or sliping. Reverse works but seems to slip resist as if emergency brake was left on. problem started suddenly.  Maybe 3 place solenoid or modulation pressure.  Any other ideas?  Thanks!

ja17

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Re: Auto won't shift into 3rd and 4th
« Reply #1 on: October 28, 2003, 22:42:58 »
Hello T3,
Make sure the three position solenoid is moving as it should. Next change the transmission fluid and change the filter. Retorque the valve body bolts while the trqnsmission pan is off. Also look for debris in the transmission pan.

Joe Alexander
Blacklick, Ohio
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback