I have a 02 kompressor c 230 and i have a left brake light problem I have replaced the bulbs I've clean the contacts I have checkd the brake light switch but only one side is not working so it couldn't be the brake light switch I was recently told I had a left brake light out so I pulled out the harness that contains the bulbs on the left side I switched the Bulbs again and there was no brake lights working then I switched bulbs again and the brake light stays on the left side but doesn't blink when the lights are on. This is to say the very least very frustrating please help???