Engine Misfires - All Conditions

WARNING: This page does not describe the selected car, but rather 34 other vehicles, including the 2001 BMW Z8, 2001 BMW Z3, 2001 BMW X5, 2001 BMW M5, and 2001 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: See Fig 1 -Fig 3 .

Fouled spark plugs.
Burned or sticking valves.
Ignition system malfunction.
Fuel injector not operating.
DME/Motronic control unit malfunction.
Blown head gasket.

Fig 1: Identifying OBD-II Misfire Faults

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Diagnosing Engine Misfire (1 Of 2)

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Diagnosing Engine Misfire (2 Of 2)

Courtesy of BMW OF NORTH AMERICA, INC.