LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2021 >> X3 M Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Electrical System -- Repair -- X3 M (F97) >> 12 90 E-Box >> 12 290 150 Remove and install/replace control unit box (X3 M) >> Remove control unit bracket

Remove control unit bracket

WARNING: Working on 12 V electrical system  .
Risk of short circuits! Risk of fire! 
  • Make sure that there is no charger  connected to the jump start terminal in the engine compartment.
  • Detach battery ground lead from battery.
  • For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.
NOTE: RISK OF DAMAGE 
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS)  .
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults  .
  • Detach battery terminal from battery pole by carefully shifting to and fro. Do not pry off using a tool.

Preliminary work