Horn inoperative on 2005 Z4

bcolins · 04-24-2023, 01:08 PM

Replaced the fuse and still not working. Is there a common issue causing this? Can't get it inspected until working.

Brian

3002 tii · 04-25-2023, 09:26 AM

Could be the horn themselves, maybe wires corroded. Pretty easy to replace, directly accessible from wheel liner

pandry · 07-12-2023, 04:37 PM

When I got my Z4 a couple of weeks ago, the horn(s) would only work for a very short time, after which nothing until the following day. I had to have them working to get my registration and license plate. I paid $60.00 to a repair shop, only to be told that both horns were worn out.... Apparently, it is not uncommon for both high and low horns to fail at the same time(?).

Anyway, I held out for BMW horns (unavailable from local shops) until the new BMW horns with BMW's connectors arrived. I did not want to be splicing and soldering after-market horns in such a restrictive space. Two nuts off, old horns removed, new horns on, plug and play - all is well.

dhlairbusb4@cs.com · 01-04-2024, 03:09 PM

My horn is really weak, I suspect only one is working. So the question is, what side are the horns located? With my luck I would pull the wheel liner for the wrong side!
Any help appreciated, and Thanks in advance!
2014 Z4 S Drive 28I

04-24-2023, 01:08 PM	#1
bcolins Wildwestrider 12 Rep 88 Posts Drives: 2007 E85, 2018 R1200GS Join Date: May 2014 Location: Austin, TX iTrader: (0)	Horn inoperative on 2005 Z4 Replaced the fuse and still not working. Is there a common issue causing this? Can't get it inspected until working. Brian
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04-25-2023, 09:26 AM	#2
3002 tii Lieutenant General 2544 Rep 12,730 Posts Drives: Z4 M, X5, GX460 Join Date: Apr 2008 Location: CT iTrader: (100) Garage List E86 Z4 M [10.00] F15 X5 35i [9.17] F10 550i (Retired) [9.17] F25 X3 35i (Retired) [9.43] E85 Z4 M (Retired) [9.44] E82 135is (Retired) [9.56] E90 328xi (Retired) [9.25] E86 Z4 3.0si (Retired) [8.95]	Could be the horn themselves, maybe wires corroded. Pretty easy to replace, directly accessible from wheel liner __________________ Follow for latest mods
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07-12-2023, 04:37 PM	#3
pandry New Member 2 Rep 5 Posts Drives: BMW Z4 3.0is 2008 Join Date: Jun 2023 Location: Lexington, KY iTrader: (0)	Horn not working When I got my Z4 a couple of weeks ago, the horn(s) would only work for a very short time, after which nothing until the following day. I had to have them working to get my registration and license plate. I paid $60.00 to a repair shop, only to be told that both horns were worn out.... Apparently, it is not uncommon for both high and low horns to fail at the same time(?). Anyway, I held out for BMW horns (unavailable from local shops) until the new BMW horns with BMW's connectors arrived. I did not want to be splicing and soldering after-market horns in such a restrictive space. Two nuts off, old horns removed, new horns on, plug and play - all is well.
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01-04-2024, 03:09 PM	#4
dhlairbusb4@cs.com Enlisted Member 5 Rep 37 Posts Drives: bmw z4 Join Date: Dec 2023 Location: FL USA iTrader: (0)	My horn is really weak, I suspect only one is working. So the question is, what side are the horns located? With my luck I would pull the wheel liner for the wrong side! Any help appreciated, and Thanks in advance! 2014 Z4 S Drive 28I Last edited by dhlairbusb4@cs.com; 01-04-2024 at 03:45 PM..
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