Who has a "highway" horn option on their 113? (Apparently, a popular option in Europe.) How is it activated? How different is it from the two-tone horn (which is plenty loud for me)?
The previous owner of mine put in an aftermarket air horn, in addition to the two-tone, which is operated by a button unobtrusively installed at the end of the console tray, behind ashtray.
LFrank
Washington DC
65 230 sl
DB334/Hellblau