Help ! Smg Wont Revmatch When Downshifting - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 04-08-2005, 06:02 AM
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hi i have a 2004 m3 with smg II and the system does not blip the throttle when i downshift from any gear... when i do downshift though i have to keep my foot on the gas or rev blip it myself by keeping my foot on the gas.

normally when i brake and downshift it just slips in the clutch and i get this huge jerking sensation as if someone just shifted from 3rd into 2nd with just clutch work.... and i feel all the stress on my clutch !!! i dont hear ne downshift or rev matching blimping...

took it to dealer and they said no its fine and gave me this BS about me not knowing how to drive properly... but i tell em why would bmw state on their car that it was able to downshift and revmatch perfectly.... when its obviously not !!!

please tell me if its a problem or not... cuz i think the dealer is just being an ass... he even pretends that im stupid too when i try to explain driving stick to him... just cuz he thinks im some no skilled driver who has never driven stick before... which im not cuz i drive a mitsubishi evo too !!! ugh im so mad...

please help... i think its is a problem but i want to know what you guys think thanks =_) maybe you can help me explain to stupid ass dealer... cuz he feels the jerky downshifts but he thinks its maybe what bmw whats in their programming for the shifting....
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#2 (permalink) Old 04-08-2005, 12:31 PM
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sounds like a problem to me. i know for a fact that it IS suppost to rev match when downshifting. it sounds like a software problem to me. i do know that there is a recall on a relay for the SMG have you had that done. although i don't remember what for sure the relay that gets fixed controls but there is a bulliten for a SMG relay. or it might be a software problem you might go for a ride with a tech or a service writer in the car to actually show them what is going on. they might be able to clear the adaptations and see if that helps the problem but i think there is defiantly something wrong there. unless maybe the rev match has something to do with how much you have the shift hardness turned up. might try changing the firmness of the shift and make sure it happens all the time and not just under certian circumstances. that can also help the dealership diagnos what might be casueing the problem.
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#3 (permalink) Old 04-08-2005, 01:02 PM
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you need to go to the dealership where you bought it, tell them that if they don't fix it you're gonna sue them , seriously though, it is supposed to downshift for you and you need to go back to the dealer and don't let them bullshit you

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#4 (permalink) Old 04-08-2005, 02:50 PM
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take it in. dont mess with the electronics and software of the SMG

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#5 (permalink) Old 04-08-2005, 03:08 PM
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Most definitly take it in to a BMW dealership immediatly. Since that guy from the dealership you have been going to has been a jerk, I would take it to another BMW dealership somewhere because it doesn't matter where you take it as long as it is BMW. Don't do anything to it yourself because you could potentially make the problem worse or cause a new problem. Give us the news after you take it in. Good Luck. Remember, this is definitly under warranty unless you have modded your car in some way that could potentially cause the SMG to create a porblem.

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#6 (permalink) Old 04-11-2005, 09:29 AM
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How long have you had the car? Moving from a stick car to SMG, takes some getting used to. I have SMG 1, and that's worst. I prefer to use the manual selection. After a while, you can use it just like a stick car. Some people just do not like it. Give it a chance and it's not too bad!
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#7 (permalink) Old 06-27-2005, 10:38 PM
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That should not happen at all. My friend got an 05 M3 and let me drive him arround since he did not have his license yet...anyways it was my first time to drive an SMG and when i downshifted it rev matched perfectly ... it was acutally really amazing. I could downshift with NO JERKS at all. It was great. The only thing that I had to learn was to let my foot off the gas to make it more smooth.

Just take it in

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#8 (permalink) Old 06-27-2005, 10:41 PM
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Take it to the dealer and make them test drive the car with you in it. That way you can point out the problem as it arises.

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