E90 M3 tach question

"PetarVN, GLI Guy, now with stupid power" (petarvn) 07/22/2015 at 07:56 • Filed to: None

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I was browsing autotrader, and I noticed something interesting between 2 E90 M3 coupes; one a 2009 and one a 2012. can someone help answer this for me?

The question is about where the tachometers say the engine redlines.

for example; look at where redline is in the 2009 Performance Pack E90 M3 coupe:

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as you can clearly see, the car relines at 8,250RPM.

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Now, take a look at a tach from a 2012 Performance Pack E90 M3 coupe:

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it’s redline is marked at 7,750 RPM.

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That is the only difference between these two cars, and as you can tell they both have very similar mileage, so it’s not something that age causes. i’d greatly appreciate your help guys.

Arch Duke Maxyenko, Shit Talk Extraordinaire > PetarVN, GLI Guy, now with stupid power 07/22/2015 at 08:00

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The bottom one is cold. They lower the redline at cold temp to protect the motor.

d1ck > Arch Duke Maxyenko, Shit Talk Extraordinaire 07/22/2015 at 08:04

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Ding ding ding! The E46 M3 did the same thing.

KatzManDu > d1ck 07/22/2015 at 08:06

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Even the E39 M5, too. Until the water and oil were hot enough, the tach would show a lower redline.

Arch Duke Maxyenko, Shit Talk Extraordinaire > d1ck 07/22/2015 at 08:09

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And the Euro spec E36

bob and john > PetarVN, GLI Guy, now with stupid power 07/22/2015 at 08:12

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I think they both do that. but look at the top opne and notice how the car is warmed up? and the bottom one, the car is cold.

PetarVN, GLI Guy, now with stupid power > Arch Duke Maxyenko, Shit Talk Extraordinaire 07/22/2015 at 08:23

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I did not know that!!! that is so cool! wow! okay, now I want one more than ever!

PetarVN, GLI Guy, now with stupid power > Arch Duke Maxyenko, Shit Talk Extraordinaire 07/22/2015 at 08:26

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also your reward for telling me: A song about taching it up
https://www.youtube.com/watch?v=_pYU0p…

trmoore09 > Arch Duke Maxyenko, Shit Talk Extraordinaire 07/22/2015 at 08:28

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Ditto. My E46 M3 does the same thing. Our E90 did also.

Tareim - V8 powered > Arch Duke Maxyenko, Shit Talk Extraordinaire 07/22/2015 at 08:39

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that outer white part of the dial isn’t static? if it what you said is true then that is pretty awesome

Azrek > PetarVN, GLI Guy, now with stupid power 07/22/2015 at 09:30

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Yeah all the posters above me are correct. I have a 2011 E92 M3 and in the cold that bar on the right will sometimes go all the way up to 5. I have to let it idle some before I hit the highway or it runs really rough. It warms up pretty quick.

I have to take my car in to get a tire checked after a 3rd low tire warning. Swopped my winter/summer tires and the place that did it in Maryland I think had a learning disability.

M54B30 > PetarVN, GLI Guy, now with stupid power 07/22/2015 at 09:56

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Did it on the E39s too. Double edged sword - BMW was denying warranty claims because it records how you drive when the engines cold (hard starts, high revs, etc)

jdrgoat - Ponticrack? > PetarVN, GLI Guy, now with stupid power 07/23/2015 at 00:02

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