i know that to reset all the the green bars/yellow or red service lights on my 1989 318i i need to take it to a BMW repair shop and they open the hood and stick this weird looking Lightsabre-handle thing into a plug and it resets the lights on the dashboard. im sure its the same for all BMW's.
Reset inspection light on 1989 bmw 325i
reset service engine light on BMW 325
you may need to replace the sensor for the coolant, there should be a wire connected to it.
You need a scan tool to plug into OBD port
The brake pad sensor light is reset by leaving the key on engine off for about 20sec. If it does not reset retry, if it still does not reset check the wiring of the left front and right rear pad sensors
Check out the realted link for some advice on how to reset the computer in your 2003 BMW 325I computer.
The brake warning light on a 2005 BMW 325i can be reset by connecting an OBD II code reader. It can view and clear error codes detected by the computer.
Have vehicle scanned to determine the problem (usually in the emission control system) and have codes cleared
this is a German car, there is no "reset" button,
many service lights on the new 3 series you cannot reset yourself, this is a software error by BMW and they are aware of this but currently no fix is available, the only way to reset it is to have a BMW technician reset it with their special service equipment.
depneding on model/yr, either thru console mounted button, or thru turn signal stalk
In the trunk on the right side.