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1988 Mercedes Benz 420SEL 258,000 miles (SOLD) 1991 300se 168,000 miles, ASR 1999 GMC Yukon 192,000
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1,376 Posts
Discussion Starter #1
:surrender:Iv seached the forum but still cannot find the what the B on the shifter console stands for on my 420SEL?
 

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1991 420SEL, flirting with 200k
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150 Posts
IIRC it's for engine Braking (drops it into first gear). Well "bremsen" I suppose, the german word for braking.
You would be correct there I believe. I remember the first time I was going down a hill and accidently bumped the shifter over there, my steering wheel I found, does not taste all that good, silly me though for not wearing my seat belt.
 

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1988 Mercedes Benz 420SEL 258,000 miles (SOLD) 1991 300se 168,000 miles, ASR 1999 GMC Yukon 192,000
Joined
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1,376 Posts
Discussion Starter #4
Thanks for the responce,

so this would be for snow or ice to stay in control? or just 1st gear
 

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1991 420SEL, flirting with 200k
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150 Posts
Thanks for the responce,

so this would be for snow or ice to stay in control? or just 1st gear
I would NOT use the "B" for snow/ice, it uses all of the available torque/engine braking and would make for a very interesting drive, if you like drifting in the snow by all means punch it down there! Make sure to send me a video though:D
 

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'82 Euro 500SEL, '85 Euro 500SEC AMG WB Cabriolet,'86 Euro 500SEC RUF
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9,487 Posts
The B is for down hill driving for very steep inclines. However. it is what is refered to as !st gear start. Your tranny normally starts off in second gear(because of mileage requirement and emissions control in effect at the time of MFG.)

Your car has a FGS module in it. to test this feature, while stopped at a light, move the gear selector from D to B and back to D. This puts your tranny in FGS mode. Light turns and you stomp it you will feel the tranny shift 3 times into 4 gear if you have the intestinal fortitude to stay on the gas.
You can manually shift to B then shift through the gears to D for a manual shifting of these gears.

If this FGS doesn't work you may have the solenoid wire disconnected on the tranny. it is on the rear of the tranny on the passenger side about 2:00 oclock and has one wire coming out the back. These wires get severed sometimes.
 

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Registered
1988 Mercedes Benz 420SEL 258,000 miles (SOLD) 1991 300se 168,000 miles, ASR 1999 GMC Yukon 192,000
Joined
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1,376 Posts
Discussion Starter #8
Thanks chadshar

ill have to try the FGS sounds like a good time.
 
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