check engine light would not come on during smog test. is there a lightbulb for that?
check engine light on 1998 BMW 323i
Most new vehicles no longer have replaceable light bulbs in the instrument panel cluster. The cluster must be remove from the vehicle and set to a special repair facility for bulb replacement. I would suggest that you have the check engine light system thoroughly diagnosed before sending the cluster out for repair. It may not be just a burned out bulb that is causing you problem.