Coincidentally this week, both a neighbor and another friend told me about their sick MB transmissions. First car is an '81 300D and the second is an '88 300SE. Both auto-boxes have high mileages and will only operate in first and reverse gear. Does this symptom suggest a specific cause to anyone? I tried a search and found mention and argument over a possible B2 piston fault but nothing conclusive.

Happy Motoring, Mark

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DrDKW