M4

pecengarcon · 12-06-2021, 07:50 AM

I rarely use my horn but this week after 5 months of owing the F80 M4 - I noticed that this strong car has a weak a$$ horn like from a low-end rental car.

Any upgrade suggestions ?.. I was looking at the the train horn option (JK).

White340 · 12-06-2021, 07:58 AM

Not only is the horn weak but you really need to put a ton of pressure on the airbag to use it.

mrjsmith88 · 12-06-2021, 09:18 AM

I agree but what other options are there??

White340 · 12-06-2021, 09:33 AM

What I don't get is why the m3/4 horn is different to the other 3 series. My 2016 340 was a standard horn with less pressure required to use it.

swagon · 12-06-2021, 11:32 AM

Doesnt it have a two-stage horn?

Alternatively, you can yell at them aggressively

pecengarcon · 12-06-2021, 01:40 PM

My F10 535i has a (proper) BMW sounding horn.

ShopVac · 12-06-2021, 02:39 PM

Odd, never used the horn to notice how it sounds. I just flip people the bird...

Pvt_D · 12-06-2021, 03:06 PM

The M's have a common weakness of dual-stage horns and the low-end going out - get it repaired at dealership. Mine did that and sounded like a clown car - it was embarrassing, but the next week stopped working altogether. Warranty replaced and sounds perfect again.

NSX2M4 · 12-06-2021, 04:10 PM

Must be something wrong with it. The one on mine is seriously loud. I love it. However, unless your windows are rolled up, then you cannot hear it much.

IVM3 · 12-06-2021, 11:37 PM

Quote:

Originally Posted by Pvt_D

The M's have a common weakness of dual-stage horns and the low-end going out - get it repaired at dealership. Mine did that and sounded like a clown car - it was embarrassing, but the next week stopped working altogether. Warranty replaced and sounds perfect again.

This. If it sounds like a clown car, one of the horns is broken.

icegrill · 12-07-2021, 12:18 AM

Where is the horn trumpet located?

e90335e36m3 · 12-07-2021, 05:15 AM

Get one of those train horns retrofitted. They seem to work well at alerting others of your presence. Plenty of YouTube videos on this.

mapster37 · 12-07-2021, 05:47 AM

there are two horns (one low pitch, 1 high pitch). one is on the left and one is on the right, behind the front bumper. you might be able to access them if u remove front fender liners. if it sounds funny, one of them is inop. have someone activate the horn while u carefully check if its coming from the left or right side.

BlackF82 · 12-08-2021, 06:20 PM

Sell the car 🤷🏻you shouldn't put up with a shitty horn sir!!!

Spun Crankhub · 12-12-2021, 12:29 PM

I added a bullhorn that plays La Cucaracha

dinajafer · 01-28-2022, 06:58 AM

You're so right. Back when I bought my F80 in 2016, I was surprised to find such a weak horn. Honestly, I think such a crazy car should have a good horn to try to prevent an accident if you are going at high speed. So, I had to replace it, but you know, I didn't want a rudimentary horn that I could get from another BMW. My brother told me to try and change the horn from my older F10 and see how it works. I decided to get one from hornblasters.com as I wanted something different. So, I have a horn that sounds like a duck, a very loud duck.

M5D · 01-28-2022, 10:09 AM

An air horn would fix it!

khoa@x-ph.com · 01-28-2022, 11:34 AM

Quote:

Originally Posted by M5D

An air horn would fix it!

Freak1c · 01-28-2022, 11:58 PM

Anyone know if the f10 horns will fit in the f80/82 without modification?

bmwbrad22 · 01-29-2022, 10:28 AM

Quote:

Originally Posted by khoa@x-ph.com

Quote:

Originally Posted by M5D

An air horn would fix it!

LoL

M5D · 01-29-2022, 10:43 AM

Quote:

Originally Posted by bmwbrad22

LoL

Do you remember that movie when that guy's 911 was turned into a jacked up looking chevy nova with air horns? I don't remember the name!

icegrill · 01-29-2022, 05:13 PM

Bump for where is the actual horn trumpet?

12-06-2021, 07:50 AM	#1
pecengarcon New Member 22 Rep 26 Posts Drives: BMW M4 Convertible Join Date: Sep 2021 Location: South Carolina iTrader: (0)	M4 - $hitty Horn I rarely use my horn but this week after 5 months of owing the F80 M4 - I noticed that this strong car has a weak a$$ horn like from a low-end rental car. Any upgrade suggestions ?.. I was looking at the the train horn option (JK).
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12-06-2021, 07:58 AM	#2
White340 Lieutenant Colonel 1392 Rep 1,986 Posts Drives: 2018 M3 Comp / 2022 X5 45e Join Date: Dec 2015 Location: NYC iTrader: (3)	Not only is the horn weak but you really need to put a ton of pressure on the airbag to use it. __________________ 2022 X5 45e : AW/Tartufo 2018 M3 Competition : AW/SO 2016 340i xDrive : AW/CR (sold)
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12-06-2021, 09:18 AM	#3
mrjsmith88 First Lieutenant 151 Rep 302 Posts Drives: 2017 BMW X5M Join Date: Dec 2017 Location: Queens iTrader: (0) Garage List 2017 BMW M3 [9.50]	I agree but what other options are there??
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12-06-2021, 09:33 AM	#4
White340 Lieutenant Colonel 1392 Rep 1,986 Posts Drives: 2018 M3 Comp / 2022 X5 45e Join Date: Dec 2015 Location: NYC iTrader: (3)	What I don't get is why the m3/4 horn is different to the other 3 series. My 2016 340 was a standard horn with less pressure required to use it. __________________ 2022 X5 45e : AW/Tartufo 2018 M3 Competition : AW/SO 2016 340i xDrive : AW/CR (sold)
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12-06-2021, 11:32 AM	#5
swagon Major General 13518 Rep 8,163 Posts Drives: F80 6MT Join Date: Jun 2013 Location: . iTrader: (0)	Doesnt it have a two-stage horn? Alternatively, you can yell at them aggressively __________________
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12-06-2021, 01:40 PM	#6
pecengarcon New Member 22 Rep 26 Posts Drives: BMW M4 Convertible Join Date: Sep 2021 Location: South Carolina iTrader: (0)	My F10 535i has a (proper) BMW sounding horn.
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12-06-2021, 02:39 PM	#7
ShopVac Not willing to take advice 4053 Rep 1,527 Posts Drives: F82 M4 - 6MT Join Date: May 2010 Location: PA iTrader: (1) Garage List 2018 BMW M4 [9.83] 2023 Genesis GV70 [6.50] 2018 Abarth 124 Spider [10.00] 2014 Audi S4 [6.50]	Odd, never used the horn to notice how it sounds. I just flip people the bird... __________________ Proud owner of 4 Turbos and 1 Supercharger
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12-06-2021, 03:06 PM	#8
Pvt_D New Member 10 Rep 15 Posts Drives: 2017 F80 DCT AB Join Date: Dec 2020 Location: Midwest iTrader: (0)	The M's have a common weakness of dual-stage horns and the low-end going out - get it repaired at dealership. Mine did that and sounded like a clown car - it was embarrassing, but the next week stopped working altogether. Warranty replaced and sounds perfect again.
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12-06-2021, 04:10 PM	#9
NSX2M4 Major 1378 Rep 1,331 Posts Drives: 2019 M4 ZCP- RIVIAN R1S QUAD Join Date: Jun 2019 Location: FTL, FL iTrader: (1)	Must be something wrong with it. The one on mine is seriously loud. I love it. However, unless your windows are rolled up, then you cannot hear it much.
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12-07-2021, 12:18 AM	#11
icegrill Lieutenant Colonel 2078 Rep 1,780 Posts Drives: 2015 M3 Join Date: Jan 2018 Location: Oregon iTrader: (3)	Where is the horn trumpet located?
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12-07-2021, 05:15 AM	#12
e90335e36m3 M3 1426 Rep 725 Posts Drives: M3s Join Date: Nov 2013 Location: Earth iTrader: (4)	Get one of those train horns retrofitted. They seem to work well at alerting others of your presence. Plenty of YouTube videos on this.
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12-07-2021, 05:47 AM	#13
mapster37 Captain 362 Rep 924 Posts Drives: F80 Join Date: Sep 2018 Location: Davie iTrader: (2)	there are two horns (one low pitch, 1 high pitch). one is on the left and one is on the right, behind the front bumper. you might be able to access them if u remove front fender liners. if it sounds funny, one of them is inop. have someone activate the horn while u carefully check if its coming from the left or right side.
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12-08-2021, 06:20 PM	#14
BlackF82 First Lieutenant 207 Rep 307 Posts Drives: BMW M4 F82 Join Date: Mar 2019 Location: Phoenix, AZ iTrader: (0)	Sell the car 🤷🏻you shouldn't put up with a shitty horn sir!!!
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12-12-2021, 12:29 PM	#15
Spun Crankhub Major General 964 Rep 5,032 Posts Drives: 15 F82 SOLD Join Date: Feb 2012 Location: San Jose, CA iTrader: (63)	I added a bullhorn that plays La Cucaracha
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01-28-2022, 06:58 AM	#16
dinajafer Banned 0 Rep 1 Posts Drives: Bmw Join Date: Aug 2021 Location: UK iTrader: (0)	You're so right. Back when I bought my F80 in 2016, I was surprised to find such a weak horn. Honestly, I think such a crazy car should have a good horn to try to prevent an accident if you are going at high speed. So, I had to replace it, but you know, I didn't want a rudimentary horn that I could get from another BMW. My brother told me to try and change the horn from my older F10 and see how it works. I decided to get one from hornblasters.com as I wanted something different. So, I have a horn that sounds like a duck, a very loud duck. Last edited by dinajafer; 02-01-2022 at 05:40 PM..
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01-28-2022, 10:09 AM	#17
M5D Second Lieutenant 303 Rep 279 Posts Drives: 2016M4 Join Date: Jul 2012 Location: PNW iTrader: (0)	An air horn would fix it!
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01-28-2022, 11:58 PM	#19
Freak1c First Lieutenant 145 Rep 344 Posts Drives: 2018 M3 ZCP MW Join Date: May 2016 Location: SoCal iTrader: (1)	Anyone know if the f10 horns will fit in the f80/82 without modification?
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01-29-2022, 05:13 PM	#22
icegrill Lieutenant Colonel 2078 Rep 1,780 Posts Drives: 2015 M3 Join Date: Jan 2018 Location: Oregon iTrader: (3)	Bump for where is the actual horn trumpet?
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