SL/R107: MPH vs RPM
11-04-2023, 11:36 AM
#1
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1985 280LS Euro
MPH vs RPM
I have a 1985 280SL Euro with and automatic transmission. The owner's manual states that the trans is a 4 speed. When I drive it shifts twice. I usually run 40MPH at 2,000RPM and it will not shift further. Seems like a really high RPM to get 70MPH. Is this unusual? Do I have a transmission problem?
11-05-2023, 03:25 AM
#2
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what happens when you cruise @ 40mph?
should end up upshifting to 4th gear.
does it work with manual stick operation
How is fluid level when warm?
what color? smell?
should end up upshifting to 4th gear.
does it work with manual stick operation
How is fluid level when warm?
what color? smell?
11-05-2023, 07:32 AM
#3
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1985 280LS Euro
RPM vs MPH
The transmission will not shift further. Perhaps the transmission is designed to start in second gear and shift twice to third and fourth gear and 2,000RPM and 40MPH is normal for this model.
