wilco184
Member of the year 2015
Hello,
It's pretty obvious that the A2s horn is not its strongest point. People certainly don't seem to notice it, on the odd occasion I've had to use it. I'd been looking at the possibility of upgrading or replacing the horn such that it's a bit more 'substantial'.
After some research into this, the A2 uses a single 'high tone' horn, mounted behind the front bumper. For Audis of similar age with a dual tone horn setup, the same horn as fitted to the A2 translates as a 'low tone' horn. Complicated? I planned to fit the 'high tone' horn from a B7 A4 alongside the original, in a dual tone setup. This horn shares the same connector as the A2 and mounts the same way, so I'd be able to make the installation as OEM as possible.
For future reference:
The standard A2 horn is 8Z0 951 221 B, which has a frequency of 400 Hz.
The horn I added from the B7 A4 has a part number of 8E0 951 223 C, which has a frequency of 500 Hz.
The connector needed to add the second horn is 4D0 971 992.
I installed the horn by splicing the new connector into the existing wiring, and mounting the new horn near to the original. Thankfully, the original horn mount is made of 3 sheets of metal, so you can use one sheet for one horn and two for the other. No manufacture of a new bracket is needed. The wiring near the horn connectors was then re-wrapped in Tesa tape, as can be seen below.
I have taken some pictures as well, which may be of use to anyone planning to complete this modification.
The new horn setup is far better, and much more noticeable.
Regards,
Matt.
It's pretty obvious that the A2s horn is not its strongest point. People certainly don't seem to notice it, on the odd occasion I've had to use it. I'd been looking at the possibility of upgrading or replacing the horn such that it's a bit more 'substantial'.
After some research into this, the A2 uses a single 'high tone' horn, mounted behind the front bumper. For Audis of similar age with a dual tone horn setup, the same horn as fitted to the A2 translates as a 'low tone' horn. Complicated? I planned to fit the 'high tone' horn from a B7 A4 alongside the original, in a dual tone setup. This horn shares the same connector as the A2 and mounts the same way, so I'd be able to make the installation as OEM as possible.
For future reference:
The standard A2 horn is 8Z0 951 221 B, which has a frequency of 400 Hz.
The horn I added from the B7 A4 has a part number of 8E0 951 223 C, which has a frequency of 500 Hz.
The connector needed to add the second horn is 4D0 971 992.
I installed the horn by splicing the new connector into the existing wiring, and mounting the new horn near to the original. Thankfully, the original horn mount is made of 3 sheets of metal, so you can use one sheet for one horn and two for the other. No manufacture of a new bracket is needed. The wiring near the horn connectors was then re-wrapped in Tesa tape, as can be seen below.
I have taken some pictures as well, which may be of use to anyone planning to complete this modification.
The new horn setup is far better, and much more noticeable.
Regards,
Matt.
Last edited: