Home >> BMW >> 2000 >> 740i >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> COOLING SYSTEM - REPAIR INSTRUCTIONS - 740i & 740iL - E38 >> Coolant, checking coolant >> 17 00 ... Instructions for working on cooling system >> Instructions for disassembly/assembly of coolant hose fast-release couplings >> Disassembly of fast-release coupling