CLEAN CALIPER & CARRIER

more dismantling which part of the light unit these wires were for. Unfortunately, I could not test if it was live at that end.

Have you any idea what it could be for? Is it to power something and the end placed in 17 out of the way?

M Hopkins

I can confirm that number 17 fuse on your B-MAX does not have a circuit allocated to it. However, the fuse holder may still have power to it and this may be the reason it has been jumped into.

Being scotch-blocked into the loom at the rear of the vehicle, this certainly doesn’t sound like a professional modification, but it is difficult to know its purpose without testing the wiring. It is possible that this extra wiring was

for the addition of a specialist accessory such as a reversing camera system that has now been removed.

You do not mention the year of your B-MAX, but here are the colour codes for the offside rear lamps. The rear lamp colours on the offside body are green/ orange for the indicators, violet/brown for the brake lights, white/orange for the side-lights and black/blue for the earth. The offside wiring in the boot also has brown/green wiring for the fog-light and black wiring for the reversing light.

These colours do not directly match the wiring you have described to me. As this wire is obviously an addition, I would be inclined to disconnect it, then check the operation of all the lights. If a faulty circuit is found, I would recommend repairing it at the point of the fault.

Spray over the caliper and carrier with brake cleaner and clean it with a wire brush (avoid damaging the rubber dust cover around the piston). Use a round file to clean the areas of the carrier where the edges of the pads sit.