COOLING SYSTEM - REPAIR INSTRUCTIONS - 740i & 740iL - E38

• Coolant, checking coolant
  • 17 00 ... Instructions for working on cooling system
    • Notes
    • Recycling
    • Instructions for disassembly/assembly of coolant hose fast-release couplings
      • Disassembly of fast-release coupling
    • Installation:
      • Notes
      • Assembly of fast-release coupling
  • 17 00 005 Draining and topping up coolant
    • Notes
    • Draining coolant
    • M62
    • Installation:
    • Recycling
    • Top up coolant!
  • 17 00 009 Checking cooling system for water leaks
    • Notes
    • Checking pressure drop in cooling system:
    • Checking pressure relief valve in cap:
    • Checking vacuum valve in cap
  • 17 00 010 Checking for leaks between cooling system and combustion chamber
  • 17 00 039 Bleeding cooling system and checking for water leaks
    • Notes
    • Transparent expansion tank
    • Black expansion tank
• Radiator expansion tank
  • 17 00 009 Checking cooling system for water leaks
• Engine radiator with
  • 17 11 000 Removing and installing radiator
    • Notes
    • Air conditioning
    • Coolant hoses with quick-release couplings
    • Installation:
  • 17 11 031 Replacing fan cowl
    • Notes
    • M62
    • Installation:
  • 17 11 100 Removing and installing/replacing coolant expansion tank
  • 17 11 509 Flushing radiator
    • Notes
    • Separate coolant expansion tank
    • Integral coolant expansion tank
  • 17 11 530 Removing and installing cassette (condenser for air conditioner)
    • Notes
    • Installation:
• Oil cooler
  • 17 21 500 Flushing oil cooler with lines (automatic transmission)
    • Notes
    • Procedure:
    • Arrangement of flushing device for transmissions A5S 310Z, A5S 560Z, A5S 360R/390R, A4S 200R, A5S 325Z, GA6HP26Z
    • Arrangement of flushing device for transmission A4S 310R
    • Arrangement of flushing device for transmission A4S 300J
    • Arrangement of flushing device for transmission A5S 440Z
• Oil cooler lines
  • 17 21 500 Flushing oil cooler with lines (automatic transmission)
    • Notes
    • Procedure:
    • Arrangement of flushing device for transmissions A5S 310Z, A5S 560Z, A5S 360R/390R, A4S 200R, A5S 325Z, GA6HP26Z
    • Arrangement of flushing device for transmission A4S 310R
    • Arrangement of flushing device for transmission A4S 300J
    • Arrangement of flushing device for transmission A5S 440Z
• Auxiliary electrical
  • 17 40 000 Removing and installing/replacing complete supplementary fan (with fan cowl)