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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 567 (Cooling System - Tightening Torques) >> Coolant, Checking Cooling System >> 17 00 Coolant

17 00 Coolant

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COOLANT - TIGHTENING TORQUE SPECIFICATIONS (1AZ - 3AZ)

  Type thread tightening specification Measure
1AZ Coolant hoses 32 ... 48 mm dia. All     2.5 Nm
2AZ Bleeder screw (8 mm wrench size) on thermostat housing All, without E46     8 Nm
Plastic vent screws on coolant lines E46     2 -0.5/+1 Nm
3AZ Level switch (30 mm wrench size) to coolant expansion tank All     3 Nm
4AZ Bleed screw to water valve or auxiliary water pump E90 / E91     3.5 Nm