3. its a small pencil size input for my OBC to change from standard to metric. you just tap it once or twice. My 90 525I changes with actual S/ Reset button.
on the lights it maybe turn signal relay. i have found that disconnects can occur on the lights themselves<<perhaps by aggressively driving . check terminals for light bulbs and electrical connections. be careful of turn signal switch might be bad or check connection. ive had to change mine. check for relay to hazard light. if u press the hazard just slightly on either left or right side you might be able to get a blinker to come on. this mostly is an indication of a bad switch.
5. i dont believe the brake fluid reservoir is for the clutch, or manual transmission?? is that right? or is it under car some where??
