1991 300SL transmission / gearbox - Page 4 - Mercedes-Benz Forum
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#31 (permalink) Old 02-13-2011, 11:13 AM
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Sorry to drag up an old thread, but I just had the valve body mod done on my 300SL, and what a difference!
Starting in first gear makes this car a WHOLE lot more fun to drive!
I have no idea why they designed it to start in second......
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#32 (permalink) Old 02-13-2011, 06:33 PM
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I think that on the six cylinders, it always started with the first gear?

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#33 (permalink) Old 02-14-2011, 02:41 AM
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do you have the specs and the diagram of the valve body mod?

"Understeer is when you hit the wall with the front of the car, Oversteer is when you hit the wall with the rear of the car, Horsepower is how fast you hit the wall, Torque is how far you take the wall with you."
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#34 (permalink) Old 02-14-2011, 04:20 PM
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Quote:
Originally Posted by spitfire980 View Post
do you have the specs and the diagram of the valve body mod?
I do not, but I can try to get something from my mechanic. He said it wasn't difficult, but he knows his transmissions!
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#35 (permalink) Old 02-14-2011, 06:13 PM
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I think that on the six cylinders, it always started with the first gear?

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Sounds like this '93 300SL starts out in 2nd to me, then downshifts:

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#36 (permalink) Old 02-21-2011, 08:38 PM
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I know this is an old thread, but having a new to me 300SL I have a question. This is a 1992 5 speed auto. I can only count three shifts. Does this year transmission start in first? If so I should count four shifts, right? Does anyone have an chart that shows at what RPM the tranny will shift? I am at 3000 RPM at 80 mph, so I think I am getting 5th gear, so maybe I am having a second gear start. Any ideas?
Thanks!
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#37 (permalink) Old 02-21-2011, 09:39 PM
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when you start normally it, it starts at 2nd, then 3rd then 4th and 5th comes only when you redline at around 220+ km/h

if you floor it when first starting the car will kickdown a gear and start at 1st, if you lower the gear lever to 2nd when starting off, it will start at 1st then shift 2nd

"Understeer is when you hit the wall with the front of the car, Oversteer is when you hit the wall with the rear of the car, Horsepower is how fast you hit the wall, Torque is how far you take the wall with you."
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#38 (permalink) Old 02-22-2011, 05:14 AM
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My 91 300SL 24valve starts normally in 2nd gear and shifts into 5th at 80km/hr.

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#39 (permalink) Old 02-22-2011, 08:01 AM
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i mean under full throttle

"Understeer is when you hit the wall with the front of the car, Oversteer is when you hit the wall with the rear of the car, Horsepower is how fast you hit the wall, Torque is how far you take the wall with you."
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#40 (permalink) Old 02-22-2011, 08:17 AM
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I'm confused, but I am in the US. One says 80K which is around 50 MPH. Another says 220K which is 136 MPH. Don't usually go over 100 MPH, so I would never see the fifth gear change. I think that is wrong. Can anyone confirm?
Thanks again for all your help. You guys are great.
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