10-21-2012, 10:12 PM | #1 |
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Automatic down shift
Anyone notice that the transmission will down-shift even in manual mode when you floor the pedal?
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10-22-2012, 07:39 AM | #2 |
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... not in manual mode. I'll have to try it and see.
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10-22-2012, 09:51 AM | #4 |
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It will also upshift at redline in sport/manual mode. If you want total control, shift into sport plus, then it won't do either of these things. Read more at p. 68 in your owners manual.
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10-23-2012, 03:22 AM | #5 |
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So what happens if you don't have Sports Plus mode? I tried this on my 30d SE yesterday, and the gearbox does kickdown if you floor it (while in manual mode). Is there no way for me to force the car to stay in gear (except if the engine was going to stall and it downshifted)?
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10-23-2012, 07:01 AM | #6 |
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Why use kickdown? Just use full throttle and keep the box in full manual mode.
Kickdown is an override, when you need it in an emergency. I don't see anything wrong here, BMW autos have been like this, even before paddles were added as an option to steptronic. HighlandPete |
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10-23-2012, 07:12 AM | #7 | |
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What does 'kickdown is an override' mean? |
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10-23-2012, 07:29 AM | #8 | |
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Manual doesn't down change (unless the X3 has some different software than other BMWs) at full throttle. HighlandPete |
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10-23-2012, 07:35 AM | #9 |
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You use kickdown to override full throttle... to induce a downchange. Seems that is what many are doing, rather than just use full throttle, the action which annoys them in manual mode.
It is intended for when you are in a gear and want to enforce down changes, as an example, for instant acceleration. HighlandPete |
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10-23-2012, 09:19 AM | #10 |
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Uhm, I'm guessing that using kickdown a lot would deteriorate the engine in the long run right?
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10-23-2012, 10:09 AM | #11 | |
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Remember with the latest 8-speed auto, it will induce 'block changes' if you are hard on the pedal, so lots of variations, according to how you work the pedal. HighlandPete |
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10-23-2012, 01:03 PM | #13 | |
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I sometimes use kick down with sport mode when merging in the highway.
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10-24-2012, 08:46 AM | #14 | |
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I did it on purpose to upshift quickly to M7 at like 60KM/h and started playing with the pedal; 50% throttle, 75% throttle and WOT and it just stayed in M7 sluggishly trying to gain speed lol I also put it in M2 at 40KM/h and played with the throttle trying to see if it would upshift... and nothing; it just kept being obnoxiously loud (drone at that gear+speed is loud since doing the exhaust flap mod) and it seems I could hold it forever a tad in redline (didn't hit rev limiter, so maybe I didn't go high enough). If I don't use full manual mode (with paddles) but just throw the shifter on the left for tiptronic (or whatever it's called for BMW), THEN it seems to have a mind of it's own, it holds gears for maybe 4-5 seconds and then it'll decide if it wants to down or up shift, even sometimes going back to full normal drive even with the shifter still in the left position (so back to D). I never use that mode though. |
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10-24-2012, 12:45 PM | #15 | |
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Will make all the difference for holding gears, you must move it into a gear, up or down, to hold. Otherwise it is simply in the sport auto programme. HighlandPete |
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