Heating and Air Conditioning: Technical Service Bulletins

• Customer Interest
  • Heater Core - Water Leaking Through Firewall
• By Symptom
  • Customer Interest
    • Heater Core - Water Leaking Through Firewall
  • Leaks
    • Heater Core - Water Leaking Through Firewall
• All Technical Service Bulletins
  • Cruise Control, A/C, Engine Controls - Wiring Updates
    • Overview
    • 1989 929 Cruise Control Wiring Diagram
    • 1990 323 2WD Engine Control System
    • 1990 929 A/C Control System Wiring Diagram
    • 1990 B2200, B2600 Index
    • 1990 B2200, B2600 Remote Free Wheel Control Wire Diagram
    • 1991 323 Engine Control Wiring Diagram
    • 1991 929 A/C Control System Wiring Diagram
    • 1991 B2200, B2600 Index
    • 1991 B2200, B2600 Remote Free Wheel Wiring Diagram
  • A/C - O Ring Replacement
  • A/C - O Ring Installation Procedure
  • A/C - 0 Ring Replacement
  • A/C Compressor - Noise Replacement Criteria
  • Receiver Dryer - Replacement Criteria
  • Heater Core - Water Leaking Through Firewall
  • A/C Refrigerant - Recommendations
  • A/C - R134a Training/Equipment Requirements
  • A/C - O-Ring Replacement