I got the wrong one. I think the old one said "low note", but the new one sounds exactly like the one that's under /behind the headlight somewhere. (I cannot believe I can't find the old one, garage is a mess). The new (wrong) one is Bosch MB#A 203 542 02 20, says low tone on it.
I'm not really surprised there are 4 horns listed for theis car on MBSuperstore. Fastlane has one (probably the RIGHT one)

TIA,
-Tom

__________________
RIP "Betsy" (Oo=*=oO)
'96 E 3 2 0 (W 2 1 0) M 1 0 4 (Totalled)
Spaces in sig so as not to screw up the SEARCH; every time someone searches for that MB they don't want my sig!

2004 Audi A8L
'98 VW Passat 1.8T 5M
'87 Alfa Romeo Milano 2.5L 5M
'67 Impala convertible, 327cid

the other one is below the passenger side headlight. you can see a glimpse of
it if you shine bright light and look far beneath the headlight with head over the
center of the engine. to remove, you will need to pop off the headlight. for-
tunately, 96-99 model years makes this less than 10-15 min job. face lifted
models will require dropping of bumper to pull the headlight.....then accessing
the horn

__________________
-- raymond~
47º 34'N 122º 18'W

Thanks Raymond, but my question is what is the correct PN for the front horn.
I guess I should look at the other one to be sure someone didn't put them on backwards. I'm glad I don't need to drop the bumper.

__________________
RIP "Betsy" (Oo=*=oO)
'96 E 3 2 0 (W 2 1 0) M 1 0 4 (Totalled)
Spaces in sig so as not to screw up the SEARCH; every time someone searches for that MB they don't want my sig!

2004 Audi A8L
'98 VW Passat 1.8T 5M
'87 Alfa Romeo Milano 2.5L 5M
'67 Impala convertible, 327cid