has anybody noticed or tried this?
on my '85 300D, 123, with the regular P, R, N, D, S, L:

from dead stop; lever at S; accelerate from 1st gear until 2nd gear, then as soon as it hits the 2nd, put the lever back to L, and it will hold the 2nd gear no matter what, and will not downshift to 1st gear unless brakes to full dead stop again.

just a thought, if it has something to do with the "B" feature on 126s?

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'85 300D Turbo - CA Version

That's how it's supposed to work, but it's different from the "B" feature. As far as I know, the only cars that have the "B" feature are those that start in 2nd gear in normal driving and as has been said earlier the purpose of this feature is to start in or hold first gear.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL

I gave a complete description of the B function, in my earlier post. I learned about it from the owners manual. If you have such equipment you should also have the owners manual which explains its operation.

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Don't have an owners manual. Don't even know what "S" stands for. Slope? Slow? Sport?

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'85 300D Turbo - CA Version

General Motors used to call "S" SuperDrive.......maybe the Germans call it Schnell.....

SB

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Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
'67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP)
Gassers:
'94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG
'85 190E 2.3, 148K....Parts Car
'58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG

Here is the official explanation as outlined in the owner's manual for the 420, 560SEL and 560SEC:



"2"

Upshift to 2nd gear only. For
driving in mountainous regions.
Since transmission will not shift
up further, this gear selection
will make use of the engine's
braking power.

--------------------------------

"B"

In this position, the engine's
braking effect is utilized while
descending steep or lengthy
downgrades, especially with a
trailer. Use this position only be-
low 60 km/h (40 mph).

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1987 300SDL (324000)

1986 Porsche 951 (944 Turbo) (166000)

1978 Porsche 924 (99000)

1996 Nissan Pathfinder R50 (201000)