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HOMESERVICE MANUALSMINI2013COOPER COUNTRYMAN, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 295 (ENGINE ELECTRICAL SYSTEM - REPAIR INSTRUCTIONS)TROUBLESHOOTING12 13 NOTES ON CHECKING IGNITION SYSTEMTROUBLESHOOTINGFURTHER FAULT PATTERNS WITH EVALUATION
2013 Mini Cooper Countryman, Standard Trans

Further Fault Patterns With Evaluation

2013 Mini Cooper Countryman, Standard TransSECTION Further Fault Patterns With Evaluation
WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.

Evaluation of sparking period and ignition voltage peaks at idling speed:

  1. Normal combustion period.
  2. Normal ignition voltage peak. Ignition system is OK.
    3. Fig 1: Evaluation Of Sparking Period & Ignition Voltage Peaks At Idle Speed
    G00313225Courtesy of BMW OF NORTH AMERICA, INC.

Long sparking period (1) with low ignition voltage peak (2). Indicates low compression.

Fluctuating sparking period: Indicates contamination on spark plug (shunt).

Fig 2: Long Sparking Period With Low Ignition Voltage Peak
G00313226Courtesy of BMW OF NORTH AMERICA, INC.

Short sparking period (1) with high ignition voltage peak. Constant but short sparking period: Indicates defective ignition lead.

Fig 3: Short Sparking Period With High Ignition Voltage Peak
G00313227Courtesy of BMW OF NORTH AMERICA, INC.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.