Had the same problem with my van. I was too lazy to figure out the cause and installed another horn with a button on the dashboard. Now saw your video, I was able to remove the old horn and replace it with the one I installed previously. The factory horn priced at $120 which I just didn't want to spend that kind of money on a horn. My installed horn is $25 from Amazon. So, I just cut the wire, figured out positive and negative with multi-meter (green is positive, brown is negative). Wire with my own horn and it worked perfectly now for only $25 fix. Thank you so much!
Thanks to you, I was able to get to my horn on the same year, type vehicle. I used your method of troubleshooting the horn problem. My relay also made a clicking sound as I pushed on the horn button. I was going to install an air horn but the connections on the sprinter were different on the horn. Ok, what I’m about to tell you next somehow worked for me and if any of your viewers read my reply, it may be worth trying this if it can save you money on a new horn. My neighbor who also is a mechanic told me sometimes the opening of the horn protrudes forward behind the grill and all kinds of bugs or specs of dirt can enter into the horn. He told me to remove the horn, run high pressure air through the opening, bang the horn lightly to free the debris, then run the pressure air through it again. I was skeptical but what would I lose. I tried it and I be damned if it didn’t work. Sound the same as the day i purchased my Sprinter. This saved me so much time because of your video considering i was about to remove the horn relay and test it first. Taking the horn relay out is a feat in itself. Thank you for your informative video and if my way of testing the horn happens to work for anyone else, that’s great. Keep your videos coming!
