3000 Rpm
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Joined: Feb 2003
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From: SLC, UT
3000 Rpm
My C320 Automatic shows 3000 RPM @ 80 mph. It almost feels like it needs another gear. The automatic transmission feels and shifts soft. Is there a shift kit or other mod that will fix this?
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Joined: Dec 2001
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From: Calgary, AB, Canada
2002 C230K, Silver, 6-speed, Evo, Roof, Leather, CD, Staggered C7 Wheels
Your adaptive auto tranny has adjusted to the driver's driving style. You can probably reset it (not sure if disconnecting the battery is the only way) and start driving a bit more aggressively, so the tranny learns that style.
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From: Gaithersburg, MD
2002 C240 6-spd (ret)
Originally posted by VoyagerDude
Your adaptive auto tranny has adjusted to the driver's driving style. You can probably reset it (not sure if disconnecting the battery is the only way) and start driving a bit more aggressively, so the tranny learns that style.
Your adaptive auto tranny has adjusted to the driver's driving style. You can probably reset it (not sure if disconnecting the battery is the only way) and start driving a bit more aggressively, so the tranny learns that style.
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From: SF Bay Area
2002 C230 K
VoyagerDude's correct about getting more aggressive acceleration. The car has to relearn this pattern. However, if you drive mildly 95% of the time it will be difficult. I think to get around this you could upshift the auto "manually."
Regarding the engine speed at 80mph, the only way to reduce the revs would be to put in a different rear differential - such as dropping the 3.07 diff from a CLK in place of the 3.23 gears that're back there now. This will likely hurt the overall acceleration, though.
- BT
Regarding the engine speed at 80mph, the only way to reduce the revs would be to put in a different rear differential - such as dropping the 3.07 diff from a CLK in place of the 3.23 gears that're back there now. This will likely hurt the overall acceleration, though.
- BT
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From: The blue white rock, third out.
2002 C230 Coupe(M111)
Re: 3000 Rpm
Originally posted by toddk
My C320 Automatic shows 3000 RPM @ 80 mph. It almost feels like it needs another gear. The automatic transmission feels and shifts soft. Is there a shift kit or other mod that will fix this?
My C320 Automatic shows 3000 RPM @ 80 mph. It almost feels like it needs another gear. The automatic transmission feels and shifts soft. Is there a shift kit or other mod that will fix this?
You could change your final drive ratio if you want to turn lower RPM on the highway, but it will slightly hamper accelleration.
BTW, 3k at 80 is actually pretty low already.
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From: Dallas
C32 AMG
Just for your interest, the C32 (with a 3.07 rear end) runs about 2750 at 80 mph. That is really pretty low, unless you are used to big American cars - but even the manual Corvette, with a very long sixth gear, runs something like 2600 at 80 (and has no power available in that gear and speed)
The C320 is supposed to be a smooth car - it will not shift like a racer (or a C32). I think my car (speedtronic) shifts pretty abruptly at times, in fact.
The C320 is supposed to be a smooth car - it will not shift like a racer (or a C32). I think my car (speedtronic) shifts pretty abruptly at times, in fact.
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From: Sitting behind thing freakin desk of mine. Dreaming I was playing my Taylors, and driving my Benz. Long Live The VRAA!!!!!!
C230 Sports Coupe
a corvette 4 speed auto with a 2.73 gear will run 2000rpms at 79mph
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Your adaptive auto tranny has adjusted to the driver's driving style. You can probably reset it (not sure if disconnecting the battery is the only way) and start driving a bit more aggressively, so the tranny learns that style.
