Need someone with E350 4matic to test something
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From: DMV
'07 E350 4matic Sedan
Will try this later for you. In sport or comfort?
Also worth noting that after i reset my automatic transmission a few days ago, the car feels like it has a completely new gearbox.
Cheers
Also worth noting that after i reset my automatic transmission a few days ago, the car feels like it has a completely new gearbox.
Cheers
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2006 4Matic wagon Elegance, Infiniti 2004 G35 Sport, 1969 Jaguar XKE (s) 1988 Camaro Convert (s)
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In Sport, though really it shouldn't matter. In fact, if you don't want to floor it, just try moving the shifter into 2nd gear manually (while your foot is on the throttle holding speed steady, there is a different result that I am not concerned with if your foot is off the gas) and see if it allows it or if it stops downshifting at 3rd.
Last edited by marlinspike; Mar 18, 2017 at 07:52 AM.
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From: Cedar Rapids, IA
2009 e550 4Matic
unlikely its giving him second gear. If it is, it would be pretty far up in the rev range...
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That's the point of flooring it. This is the only car I've owned that won't give you the shortest gear you can be in when flooring it, so I'm trying to find why the variation.
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From: Cedar Rapids, IA
2009 e550 4Matic
what good is downshifting to 2nd when its going to up-shift to 3rd around 60 mph?
*edit*
I was incorrect, it does go to 2nd and up-shifts to 3rd at 68 mph
*edit*
I was incorrect, it does go to 2nd and up-shifts to 3rd at 68 mph
Last edited by rodneypierce; Mar 19, 2017 at 02:52 PM.
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From: Cedar Rapids, IA
2009 e550 4Matic
I'll actually go test this in a minute. I just reset my TCU so I'll see what I get. But I'm willing to bet I'll get 3rd. Mine is an e550 4matic but it's the same trans.
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I'll be curious to see your result. They do have the same trans but different TCU programming, so it won't really be relevant to the question here, but I'm curious to see how many MBs out there take this lazy-shifting approach. Your redline is lower though, so your shiftpoints will be different. I would be curious to hear how far it will hold 2nd if you floor it from standstill vs what speed it will let you drop to 2nd at if you floor it while already rolling.
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From: Cedar Rapids, IA
2009 e550 4Matic
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From: Mid-Atlantic
W211 - 2003
I may be off a bit, but I was under the impression that triggering the kickdown will downshift 2 gears, while regularly flooring it (but without pressing the kickdown button down) will downshift one.
If that's the case, then your definitions of "flooring it" may be different. Are you pushing it till it pushes no mo' or are you giving up as soon as you feel resistance?
If that's the case, then your definitions of "flooring it" may be different. Are you pushing it till it pushes no mo' or are you giving up as soon as you feel resistance?
Last edited by Toastr; Mar 20, 2017 at 12:21 AM.
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The kickdown should downshift to the lowest gear the TCUs calibration will allow at that road speed. Flooring it shy of the kickdown will do any number of things, determined by adaptations as well as realtime measured factors. The question I'm trying to find out is if there are different TCU calibrations for different years (enabling one to change software to one that is more aggressive).
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From: DMV
'07 E350 4matic Sedan
Downshifted to 2nd for me on first try, 3d on second try. Trans in this car is definitely not the highlight of the car - I would enjoy it for what it is: a great highway cruiser. Additionally even if there was different TCU calibration for different years, how would you really find out? This "test" is not really going to give you any definite results. Finding out a shop that can do anything about sounds twice as hard. Maybe look into a spring booster if you are not satisfied with the way your car responds or try a ECU flash - both established options of adding a little bit of sportiness to the platform.
