The fuse for the brake lights on a Peugeot 306 is typically located in the fuse box under the dashboard on the driver's side. You can find the fuse box by removing the cover, and the specific fuse for the brake lights is usually labeled in the diagram on the inside of the cover. Check the owner's manual for the exact location and amperage of the fuse. If the brake lights are not functioning, inspect this fuse for any signs of damage or a break.
The brake light switch must be broken or out of adjustment.
The radio fuse for a Peugeot 306 is located in the fuse panel beside the hood release. It contains fuses for most of the vehicle's electrical systems.
in the brake fluid bottle. >:D
Dot 4
On most vehicles pressing the brake pedal activates a brake light switch which is usually located near the brake pedal. It will be this switch that is faulty. Replacing it is probably the best option.
Try looking on eBay for peugeot head lights or angel eyes for the 306. There are also complete, standard replacements there.
Since the break lights turn on when the head lights are activated, the problem is probably in the wiring of your break lights. Someone may have accidentally disconnected the wires of your break lights to your head lights.
A Big Hammmer or angle grinder
under the steering wheel
You can purchase a set of brake pads for a Peugeot 306 GTI online at the auction website eBay. You can also find parts for one at the AxleDirect website as well.
sounds like the brake light switch , about £6 bigish job got to take out the 4 bolts that hold in the steering column , drop the column onto the seat (remove battery lead for 1 hour prior to doing this if you have got an air bag) than the switch is visable , get switch from peugeot because there are 3 types for a 306
To change the brake light switch on a Peugeot 306 hatch, first, disconnect the negative battery terminal to ensure safety. Locate the brake light switch, which is usually mounted near the brake pedal, and disconnect the electrical connector. Remove the old switch by unscrewing or unclipping it, then install the new switch in the same position and reconnect the electrical connector. Finally, reconnect the battery and test the brake lights to ensure proper functionality.