[GriggsyG22]

Do we know if these fuses control anything else or?

[Alberta]

Originally Posted by GriggsyG22

Do we know if these fuses control anything else or?

This is why unplugging the cables is the best solution.
This way I'm sure it only affects the flaps.

[mavz]

Originally Posted by micvite

Nope, there is no halfway setting, it's either open, or closed.

Yes, I didn't mean it could be partially open or closed but rather open at all times. Which leads into below

Originally Posted by micvite

The exhaust button does close the valves... im gonna post this here for the 100th time. This is how the valves work: if you have the m sport exhaust (not the base model exhaust) valves are open in sport and sport plus (aside from idle, which they can close at any time which is why you don't always see them open just by putting the car in sport mode). Efficient doesn't mean the valves stay closed, everything other than sport and sport plus depends on engine load. Regardless of what mode you're in, hitting the exhaust button WILL close the valves

When you say M-Sport do you mean the Comp vs base? Or do you mean exactly how it is, and if a base car installs the M-Sport, then the behavior will be as you described? I'm wondering because I have a base and the exhaust button definitely does not noticeably affect the volume despite what the documentation is saying.

[carseatsm5]

For those that need the extra help. I do find myself wondering if these fuses control anything else in the car. Mine is a 2020 non-comp.

[pbonsalb]

Originally Posted by mavz

I'm wondering because I have a base and the exhaust button definitely does not noticeably affect the volume despite what the documentation is saying.

Does the exhaust sound button also reduce the fake sound?

[DarkishM5C]

Originally Posted by Alberta

This is why unplugging the cables is the best solution.
This way I'm sure it only affects the flaps.

That's a very valid point. Here is the fuse description for my F90. Highlight in yellow is where the fuses 203 and 206 appear. Not sure what it's actually affecting on the cooling and engine.

[micvite]

Originally Posted by mavz

When you say M-Sport do you mean the Comp vs base? Or do you mean exactly how it is, and if a base car installs the M-Sport, then the behavior will be as you described? I'm wondering because I have a base and the exhaust button definitely does not noticeably affect the volume despite what the documentation is saying.

When are you listening to said volume? Like I said at idle chances are your valves are closed already, so... you're not going to hear anything. At WOT they're always going to be open so again no difference. The only time it's going to close the valves is more when you're cruising or at partial load at which point unless you have someone outside the asd is going to mask up any increase or decrease in sound anyway

And yes m5c comes with sport exhaust and the regular one unless you option it (in sound countries you can) comes with the base exhaust as I call it (you may or may not get the m sport exhaust standard in the usa I'm not 100% sure)

[micvite]

Originally Posted by pbonsalb

Does the exhaust sound button also reduce the fake sound?

Yes it turns OFF the fake sound when it's off

[mavz]

Originally Posted by micvite

When are you listening to said volume? Like I said at idle chances are your valves are closed already, so... you're not going to hear anything. At WOT they're always going to be open so again no difference. The only time it's going to close the valves is more when you're cruising or at partial load at which point unless you have someone outside the asd is going to mask up any increase or decrease in sound anyway

And yes m5c comes with sport exhaust and the regular one unless you option it (in sound countries you can) comes with the base exhaust as I call it (you may or may not get the m sport exhaust standard in the usa I'm not 100% sure)

When cruising specifically as my remus exhaust does drone a bit at those speeds and was hoping the valves would help reduce the drone but the exhaust button made no appreciable difference. I might try disabling ASD and revisit.

Also related to the M-Sport, I was asking if the valve behavior was tied to the exhaust specifically or due do the differences between the base and comp cars ecu/tune, etc.

[micvite]

Originally Posted by mavz

When cruising specifically as my remus exhaust does drone a bit at those speeds and was hoping the valves would help reduce the drone but the exhaust button made no appreciable difference. I might try disabling ASD and revisit.

Also related to the M-Sport, I was asking if the valve behavior was tied to the exhaust specifically or due do the differences between the base and comp cars ecu/tune, etc.

It's most likely to do with coding in terms of how spot and sport plus open the valves

[micvite]

Originally Posted by mavz

When cruising specifically as my remus exhaust does drone a bit at those speeds and was hoping the valves would help reduce the drone but the exhaust button made no appreciable difference. I might try disabling ASD and revisit.

Also related to the M-Sport, I was asking if the valve behavior was tied to the exhaust specifically or due do the differences between the base and comp cars ecu/tune, etc.

Well I can tell you the button does stuff at idle too sitting in drive and sport plus on a 2023 bmw m5 base in Europe. You can hear the flaps clicking against the stops when pressing the buttong (volume up)
https://youtube.com/shorts/ibVBdu5AyMo?feature=share

[Bluesummers]

Originally Posted by GriggsyG22

Do we know if these fuses control anything else or?

My LCI F90 is in the shop so haven't had a chance to try yet. A video I found on Youtube claims that it will affect parking assist on a 435i. Not sure if this is the case with F90's. If anyone with parking assist can test, please report back. Thanks.

[ResIpsaLoquitur]

Originally Posted by Bluesummers

My LCI F90 is in the shop so haven't had a chance to try yet. A video I found on Youtube claims that it will affect parking assist on a 435i. Not sure if this is the case with F90's. If anyone with parking assist can test, please report back. Thanks.

https://www.youtube.com/watch?v=xlm2bCtFBTI

I’ll note anecdotally that after I did pull the fuses, the remote start would not function properly consistently immediately after. I let the car sit for a little bit in between trying a few times, and now everything seems to be working properly.

I have not yet encountered any parking assistance problems, though.

[Panchoa]

Anyone had any issues with removing the fuses? Just wondering whether the fuses are just for the flaps or also other things too???

[ResIpsaLoquitur]

Originally Posted by Panchoa

Anyone had any issues with removing the fuses? Just wondering whether the fuses are just for the flaps or also other things too???

In my case, as stated above, my remote engine start did not want to work for about 30 minutes after. Then it just resolved itself.

I have had my fuses pulled since the day I posted the comment that I pulled them, and have had no issues whatsoever. I can say confidently, on LCI, I’ve had no detectable issues whatsoever.

[Alberta]

Originally Posted by Alberta

This is why unplugging the cables is the best solution.
This way I'm sure it only affects the flaps.

Originally Posted by Panchoa

Anyone had any issues with removing the fuses? Just wondering whether the fuses are just for the flaps or also other things too???

Look what I wrote at post number #46.

It's been over 5 years now and absolutely no issue with unplugging the cables from the flaps.

[ResIpsaLoquitur]

Originally Posted by Alberta

Look what I wrote at post number #46.

It's been over 5 years now and absolutely no issue with unplugging the cables from the flaps.

I think this is the better option than pulling the fuses, but I couldn’t for the life of me figure out where the plugs are exactly.

[Alberta]

Originally Posted by ResIpsaLoquitur

I think this is the better option than pulling the fuses, but I couldn’t for the life of me figure out where the plugs are exactly.

It's really easy, you can't do it wrong.

This video may help (even though it's an M4) :

[ResIpsaLoquitur]

Originally Posted by Alberta

It's really easy, you can't do it wrong.

This video may help (even though it's an M4) :

https://www.youtube.com/watch?v=Yd__RYv9ca8

Thank you very much!

[frozenRedm5]

Yep, pulled the plugs underneath with no issues. Did it to my m3 and X5M.

[smbsocal]

It is so quick to open the flaps, unplug them and cover the connectors in some waterproof tape. Did so years ago and no issues, the best part is the cold start growl.

[adeuel]

Buy MPE. Lol