Retrieving Codes (Using Check Engine Light): Notes
WARNING: This page is about a different car, the 1995 BMW 525iT, 1995 BMW 525i, 1995 BMW 325is, and 1995 BMW 325i. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
This system detects any malfunction of an emission-related control device which would cause vehicle to fail to comply with emission certification standards. Using CHECK ENGINE light for self-diagnosis is not a substitute for using BMW Service Tester. CHECK ENGINE light is also known as Malfunction Indicator Light (MIL).
All diagnostic (flash) codes are stored in DME/Motronic control unit memory. Stored diagnostic codes are displayed by turning ignition switch to RUN position and depressing accelerator pedal 5 times to Wide Open Throttle (WOT) within 5 seconds. See DIAGNOSTIC (FLASH) CODES table. If a malfunction is detected on any listed component, diagnostic system turns on CHECK ENGINE light.