I have a 2006 L322 TD6. The horns do not work. I have changed the Rotary Coupler/Clock Spring and it has not made any difference. All of the other buttons on the steering wheel work OK. The fuses =in the glovebox are OK. I have tested the horns with a direct power feed and they work OK.
On the underside of the lid on the box under the bonnet that holds the ECUS is the diagram shown in Picture 1. I cannot find the location of the fuses and relays under the bonnet. Under the box lid is what is shown in picture 2
Can anyone tell me where to find the fuses and relays under the bonnet
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