11 00 045 Checking Absolute Compression Of All Cylinders

Diagnosis And Information System (DIS) 

Fig 1: Identifying Diagnosis And Information System Equipment

Courtesy of BMW OF NORTH AMERICA, INC.

Necessary Preliminary Tasks: 

• Remove equipment wall.
• Remove spark plug from 8th cylinder.

  (Without removing manifold).

• Connect DIS Tester.
• Connect charger.

Test: 

• Call up Diagnosis.
• Select vehicle > right arrow button.
• Function selection:
  • Complete vehicle.
  • Drive.
  • Engine management:
    • Valve gear.
    • Valvetronic variable valve gear.
    • Mechanical components/function.
• Test schedule > right arrow button.
  • Compression pressure check > right arrow button.
• Follow DIS Tester instructions.