My wife's 108 also leaked from the upper brake light into the boot, Peugeot wanted a ridiculous amount of money just to look at it. Eventually got them to replace the brake light at a reasonable price. Peugeot Customer Service didn't want to know, said it wasn't a known problem (google it to see if it is). The 108 upper brake light is different to the 107 but still they leak. Nine months later leaking again into boot, replaced this time free of charge but told only two months warranty, this on a brand new car. Other than that, which is really annoying my wife is happy with the car.