Both Horns Out
Thread Starter
Super Member
Joined: May 2011
Posts: 975
Likes: 272
From: Fort Worth TX
2020 S560, 2014 SLK55 (Prev. 2016 S65, 2013 SLK350, 2008 CLS63, 2006 E350, 2006 CLS500, 2005 C230K)
Both Horns Out
Took a long trip last week and half way through it I noticed I had no horn.
Tested and relay/fuse is good and get voltage at horn terminal.
I have both horns out right now and both of them read open circuit, anyone else had this happen?
Seems suspicious both of them would go bad (car has 25k miles, I don't honk much)...
Tested and relay/fuse is good and get voltage at horn terminal.
I have both horns out right now and both of them read open circuit, anyone else had this happen?
Seems suspicious both of them would go bad (car has 25k miles, I don't honk much)...
Senior Member
Joined: Aug 2020
Posts: 256
Likes: 119
From: Florida
S550
Took a long trip last week and half way through it I noticed I had no horn.
Tested and relay/fuse is good and get voltage at horn terminal.
I have both horns out right now and both of them read open circuit, anyone else had this happen?
Seems suspicious both of them would go bad (car has 25k miles, I don't honk much)...
Tested and relay/fuse is good and get voltage at horn terminal.
I have both horns out right now and both of them read open circuit, anyone else had this happen?
Seems suspicious both of them would go bad (car has 25k miles, I don't honk much)...
Thread Starter
Super Member
Joined: May 2011
Posts: 975
Likes: 272
From: Fort Worth TX
2020 S560, 2014 SLK55 (Prev. 2016 S65, 2013 SLK350, 2008 CLS63, 2006 E350, 2006 CLS500, 2005 C230K)
Need some insight on the parts (I know they are just horns but they are $100 each), on the part numbers you listed:
222 542 1720 comes with the legend "... without S65, without electronic horn" (from online dealer I buy parts from)
222 540 6911 comes with the legend "... without S65, with electronic horn" (from online dealer I buy parts from)
Not sure why it says without S65, but also it is my understanding that cars either got both electronic horns or both traditional, is that not the case?
222 542 1720 comes with the legend "... without S65, without electronic horn" (from online dealer I buy parts from)
222 540 6911 comes with the legend "... without S65, with electronic horn" (from online dealer I buy parts from)
Not sure why it says without S65, but also it is my understanding that cars either got both electronic horns or both traditional, is that not the case?
