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#1
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W126 questions: RPM, temp, etc
Hi folks ~
I just replaced my demised 300TD with an '87 300SDL. So far I love it, but I have a couple questions, mostly where it's different from the W123:
Thanks!
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2003 E320 wagon, ~80k, "Sputnik" 1987 300 SDL, ~160k, "The Pimp Daddy" (sold April 2010) 1984 300 TD, ~200k, "Das Boot" (Demised March 2008) |
#2
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The needle should just about cut the 8 in half on the temp guage. Since this is a real guage the needle will move if you really make the engine work, but thats where it should run under normal use.
SDL's seem to like to run 70-80, I usualy keep the RPM's at 3k, but they are perfectly happy going faster. You shouldn't hear the turbo, if you do something is leaking. If its adjusted properly you shouldn't feel the boost kick in either. However on most of them they are dogs to around 2,500 than you can feel the turbo start to work. Do a search on the ALDA and you can adjust that right out. A diesel is a diesel, they like to be run hard. Just don't thrash the engine when its cold and if you come off boost give the turbo a minute to slow down before shutting it off. However the 603 is pretty powerfull so if you floor it all the time you will probably get a ticket and burn a lot of fuel. I usualy let mine shift somewhere between 2k-2.5k; when their is no traffic I keep it below 2k.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
#3
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Quote:
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daw_two Germantown, TN Links: Sold last car --- 05/2012 1984 300D Light Ivory, Red interior Cluster Needles Paint New Old Stock (NOS) parts Past: 3/2008 1986 300SDL "Coda" 04/2010 1965 190D(c) "Ben" & many more |
#4
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The speedometer dots are the maximum speed at which it is safe to shift DOWN into a gear. The transmission doesn't have the ability to prevent shifts into gears that are too low for the road speed like modern transmissions, or at least not to as foolproof an extent, so the dots indicate not to shift down into the gear indicated by them if your speed is in excess.
2 dots = don't shift into 2 if you're going faster than this. If the needle goes past the dots while accelerating rather than decelerating, you're okay. Mine, however, physically won't do this. |
#5
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Ooh, that's nice to know. I try never to force-shift the car down anyway. Now I have to pay even less attention to those marks Thanks!
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2003 E320 wagon, ~80k, "Sputnik" 1987 300 SDL, ~160k, "The Pimp Daddy" (sold April 2010) 1984 300 TD, ~200k, "Das Boot" (Demised March 2008) |
#6
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Yeah these are cars built for people who know how to drive, before all the modern legal BS. No shifter lock, and you will break something if you knock it into 2nd at 70.
Thats why I like them.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
#7
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Quote:
W126 also have a larger cooling system than the 123s. I've dorked along from 60mph on a trip to 80mph. Econ is better the slower you go (obviously). SDL also have some emission crap to reduce turbo sound. Plus the KKK doesn't make too much noise. Max the ALDA out for better off the light performance too.
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I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] |
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