1985 Mercedes Benz 300sd Shifting problem

1985 MERCEDES BENZ 300SD
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GLOSSON
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Transmission problem
1985 Mercedes Benz 300sd 6 cyl Two Wheel Drive Automatic

Why does the car shift into drive and the rpms go real high and does not shift through the other gears?
Feb 5, 2009 at 12:35 PM
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2CARPRO JACK
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I have forwarded your link to our resident M/B expert. he should be with you shortly

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https://www.2carpros.com/forum/1985-mercedes-benz-300sd-shifting-problem-vt254465.html
Feb 5, 2009 at 1:48 PM
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GFIMOTORCARS
  • Experienced Mechanic
  • 673 POSTS
I would be suspect of a couple things regaurding this complaint. First, the transmission valve body may be contaminated or failing due to use over time or irregular fluid and filter maintenance. A severly clogged trans filter could cause irregular shift conditions. Secondly you may have a frozen clutch pack in the trans which is preventing engagement of other gears. From your info I would probably lean towards a clutch pack. I would definatley recommend taking this to a reputable shop as trans work can get expensive if not diagnosed correctly the first time.
Feb 5, 2009 at 2:03 PM
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