E63 horns both inop
12-20-2023 | 07:53 AM
#1
Thread Starter
Senior Member
Joined: Jan 2016
Posts: 326
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'15 E63S,'21 LCI M5
E63 horns both inop
Recently discovered both horns don't work on my 15 63. Attempted to check for power but they're burried behind the grille pretty good.
Anyone happen to have a diagram of the horn fuse/relay locations.
Seeing they don't work when locking the doors with the remote - ruling out the horn pad.
Anyone happen to have a diagram of the horn fuse/relay locations.
Seeing they don't work when locking the doors with the remote - ruling out the horn pad.
12-20-2023 | 03:34 PM
#3
MBWorld Fanatic!
Joined: Jun 2020
Posts: 1,876
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04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
Lazy approach would be to activate horn using a bi-directional scan tool. If horn honks, you have some direction to explore. If it DOESN'T honk, listen for relay clicking. If no relay clicking, well, check the relay...
12-20-2023 | 03:52 PM
#4
Thread Starter
Senior Member
Joined: Jan 2016
Posts: 326
Likes: 76
'15 E63S,'21 LCI M5
Yeah trying to find the relay locations. Anyone know if alldata has it. Was thinking about buying a yr subscription.
