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#1
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Question about Automatic "S" gear
Finally got my 81 240D back, after someone broke into it and I had to get it fixed.
I have question about what is the top speed when you are driving up hill in "S" gear. |
#2
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S locks it in 1st/2nd, so it's wherever your speedometer's two-dots marking is. That's the top of 2nd for downshifting purposes, and is frequently quite close to the max acceleration-achievable speed too.
Also, these things can never really hit any sort of redline so if it was a desperate hill climb and your temperatures held low enough to be safe you could plant your foot in the floor in S and just keep trucking. |
#3
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Thanks. Wow, they really let this things rev. very high! I'm going to keep it on the slow end because higher the RPM the more fuel it takes.
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#4
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The above info is incorrect. "S" locks it from going to 4th gear....you have use of 1st/2nd/3rd in that mode. On a 240d the max speed of third gear is probably around 60ish mph is my guess...where ever the three dot marking is on the speedo.
"L" mode gives you only 1st and 2nd gear, and it will hold 1st all the way to near red line before it shifts. Not a good thing to do.... I looked at your photo album, that's a real nice 240!!
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#5
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Oops!
Quote:
You're right, that was me being absentminded. Apologies to all for the misinformation. Had the letter order reversed in my mind, had my mind turned off... who knows. But sorry |
#6
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I normally drive around town in S, it avoids a lot of up and down shifts to 4th. I'll manually shift to 4th on the streets that let me get up to 45 mph or so. I seem to get better in town mpg that way and also saves wear and tear on the tranny IMHO.
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Charles 1983 300D, bought new, 215k+ miles, donated to Purple Hearts veterans charity but I have parts for sale: http://www.peachparts.com/shopforum/mercedes-benz-cars-sale/296386-fs-1-owner-83-mb-300d-turbo-rebuild-parts.html |
#7
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thats a good idea but keeping it from going into 4th would use more fuel due to the braking effect
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1981 300SD 512k OM603 |
#8
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I know it doesn't seem like it should be this way, but the mpg figures are pretty accurate.
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Charles 1983 300D, bought new, 215k+ miles, donated to Purple Hearts veterans charity but I have parts for sale: http://www.peachparts.com/shopforum/showthread.php?t=296386 |
#9
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The only time I ever used it was in snow and ice going down a hill in a residential area. Didn't want to lock up the brakes, but didn't want to accrue andy speed downhill either. kept it at 10 - 15 mph until the bottom of the hill.
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84 300D, 303K 71 MGBGT, ?K 96 GMC C1500, 115K |
#10
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"S" stands for "slope" used for going up steep grades or other such conditions....towing perhaps or going down a slope as well for better braking/speed control.
"L" I assume to mean "low" but never actually saw that written anywhere, but nor did I ever look for what "L" means either.
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1987 300TDT 1981 VW MKI Caddy 1.6 diesel, waiting on engine swap 1983 D-50 Power Ram 4x4 "Mitsubishi" 2.3 turbo diesel assorted gas powered crap and motorcycles RIP: 1984 300TDT, 1982 300TDT, 1984 190D 2.2, 1992 300D 2.5, 1987 300TDT, 1982 Maxima LD28, 1983 Maxima LD28, Isuzu C223 P'ups X3, 1983 Holiday Rambler 6.2 Banks turbo diesel, 1984 Winnebago LeSharo 2.1 TD, 1985 Allegro 6.5 |
#11
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Used to be basic American car nomenclature though. Low and Second...... Besides, as long as we are all square on what "T" stands for, I'm OK......
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Jimmy L. '05 Acura TL 6MT 2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China" Scar engine installed '81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John |
#12
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
#13
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I thought that was for "Reverse".......
I'll be here all week.....
__________________
Jimmy L. '05 Acura TL 6MT 2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China" Scar engine installed '81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John |
#14
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I don't see how it would use more fuel when coasting in "S"....the engine will be at higher rpms.....but when you're off the throttle the fuel rack is at idle/closed....so little to no fuel is being used. In fact, I bet coasting at 1500-2000rpm in 3rd gear uses less fuel than coasting with the engine idling at 700 in 4th gear. Gassers shut down the fuel when coasting above idle speed......
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
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