Symptom Diagnosis
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1997 BMW Z3, 1997 BMW 840Ci, 1997 BMW 740iL, 1997 BMW 740i, and 1997 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.
Symptom checks cannot be used properly unless the problem occurs while the vehicle is being tested. To reduce diagnostic time, ensure steps in appropriate BASIC TESTING and TESTS W/CODES articles were performed before diagnosing a symptom. See articles;
- Basic tests, see: BASIC TESTING
- Diagnostic code tests, see: TESTS W/CODES
Symptoms available for diagnosis include:
- Engine Does Not Start (Will Not Crank)
- Engine Cranks, But Fails To Start
- Engine Backfires
- Loss Of Power
- Detonation (Engine Knock)
- Stalls At Idle
- Engine Runs Rough (Off Idle)
- Rough Or Unstable Idle
- Engine Misfires - All Conditions
- Poor Fuel Economy
- Excessive Emissions