Twin Tone Horns

tc4332 · #1 22nd July 2018, 01:14 PM

Anyone know how much current the two tone horns use?
I'm thinhking of fitting a obnoxiously loud get out of my way air horn that needs 9 Amps.

snapdragon · #2 22nd July 2018, 03:03 PM

I suppose we could look at the current in the Battery Energy Manager with VCDS and then press the horn and see what the change in Amps is.

tc4332 · #3 22nd July 2018, 04:51 PM

I had the idea of putting an ammeter in the circuit but realised to get an accurate reading I'd have to seriously annoy the neighbours.
And the the reason I'm thinking of this is that my Audi horns are a bit pathetic. Don't go with the car.
I'm looking at a claimed 150db air horn.

paulrstaylor · #4 22nd July 2018, 06:13 PM

How big is the fuse?

tc4332 · #5 22nd July 2018, 07:06 PM

That is the problem.
They are supplied via a relay, and I can't locate where the supply to the relay comes from.

I would like to know where the little box with 253 in it gets the supply.
I found a 150Amp fuse that also seems to feed a little box with 253 in it.
But I cannot beleive that.

paulrstaylor · #6 22nd July 2018, 07:26 PM

Quote:

Originally Posted by tc4332

That is the problem.
They are supplied via a relay, and I can't locate where the supply to the relay comes from.

I would like to know where the little box with 253 in it gets the supply.
I found a 150Amp fuse that also seems to feed a little box with 253 in it.
But I cannot beleive that.

Sorry Ray, not got a D3 to play with, but the D4 has a 15A fuse marked horn