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Heating and Air Conditioning - Tightening Torques BMW X5 E70

Automatic HVAC System

64 11 Housing, Heater/Air Conditioner

TypeThreadTightening specificationMeasure
1AZ Bulkhead adapterE85, E861.0 ± 0.3 Nm
2AZ Fan for heater/air conditionerE85, E861.5 ± 0.3 Nm
3AZ Controller for heater - A/C system fanE85, E861.0 ± 0.3 Nm
4AZ Air conditioner to bulkheadE60, E61, E63, E64, E83, E81, E87, E90, E91, E92, E936 Nm
E706.5 Nm
5AZ Cooler box to luggage compartment partition wallE65, E66, E674.5 Nm
6AZ Air conditioner to support tubeE81, E87, E90, E91, E92, E939 Nm
7AZ Mounting, positive/negative lead, to electric auxiliary heaterE838.8 Nm

TIGHTENING TORQUES - HOUSING, HEATER/AIR CONDITIONER

64 12 Additional Heater with Controls

TypeThreadTightening specificationDimension
1AZ Additional heater to body floorAll4.5 Nm
2AZ Glow plugE2417.5 Nm
E31 / E32 / E344 Nm
3AZ Temperature sensorE31 / E32 / E340.5 Nm
4AZ Oil control plug and oil filler plugAll16 Nm
5AZ Mounting screwsAllM56 Nm
AllM610 Nm
AllM824 Nm
AllM1048 Nm
6AZ Screws for filter coverAll0.9 Nm
7AZ Central cover on heaterAll1.5 Nm
8AZ Combustion air fan unit on heaterAll1.5 Nm
9AZ Recirculating pump on heaterAll1.5 Nm
10AZ Control unit/transfers heat to heater Install screws with Loctite 243All4.5 Nm

TIGHTENING TORQUES - ADDITIONAL HEATER WITH CONTROLS

64 12 Independent Heater

TypeThreadTightening specificationMeasure
1AZ Exhaust muffler to floor panE702.5 Nm
2AZ Bracket, independent heater, to floor plateE707.6 Nm
3AZ Bracket, auxiliary water pump, to independent heaterE708.0 Nm
4AZ Rubber mount to independent heaterE708.0 Nm
5AZ Bracket, fuel pump, to floor panE707.6 Nm

TIGHTENING TORQUES - INDEPENDENT HEATER

64 51 Air Conditioner (Evaporator) Control Units

TypeThreadTightening specificationMeasure
1AZ High/medium pressure pressostat Bolt cement, Part No. 81 22 9 407 144.E32 / E3425 Nm
2AZ Low pressure pressostat. Bolt cement, Part No. 81 22 9 407 144E32 / E3419 Nm
3AZ Three-way safety switchE32 / E3425 Nm

TIGHTENING TORQUES - AIR CONDITIONER (EVAPORATOR) CONTROL UNITS

TypeThreadTightening specificationMeasure
1AZ Bulkhead adapterE85, E861.0 ± 0.3 Nm
2AZ Fan for heater/air conditionerE85, E861.5 ± 0.3 Nm
3AZ Controller for heater - A/C system fanE85, E861.0 ± 0.3 Nm
4AZ Air conditioner to bulkheadE60, E61, E63, E64, E83, E81, E87, E90, E91, E92, E936 Nm
E706.5 Nm
5AZ Cooler box to luggage compartment partition wallE65, E66, E674.5 Nm
6AZ Air conditioner to support tubeE81, E87, E90, E91, E92, E939 Nm
7AZ Mounting, positive/negative lead, to electric auxiliary heaterE838.8 Nm

TIGHTENING TORQUES - HOUSING, HEATER/AIR CONDITIONER

64 52 A/C Compressor

TypeThreadTightening specificationMeasure
1AZ Refrigerant lines to A/C compressorE70M821 Nm
E60 / N47, E61 / N47, E81, E87, E82, E90 / N47, E91 / N47, E92 / N47M818.5 Nm
E92 / S65M821 Nm
2AZ Filler plug, A/C compressorE7030 ±1 Nm
E81 / N43, E8225 Nm
3AZ A/C compressor to carrierN52, N52KM8 x 87Replace aluminium screw/bolt10 Nm + 180±15 °
M8 x 87Replace aluminium screw/bolt10 Nm + 90±15 °
N43M823 Nm
N47M819 Nm
N54M819 Nm
N55M819 Nm
M57M819 Nm
N62M821.4 ± 3.2 Nm
N63M821.4 ± 3.2 Nm
S63M821.4 ± 3.2 Nm
5AZ Bearing support, compressor, to crankcaseE70 / E7119 Nm

TIGHTENING TORQUES - A/C COMPRESSOR

64 53 Refrigerant Lines and Expansion Valve

TypeThreadTightening specificationMeasure
1AZ Refrigerant lines to expansion valve/double pipeE70M68.8 Nm
2AZ Expansion valve to heater - A/CE70M65.5 Nm
3AZ Refrigerant lines to condenserE70M818 Nm
4AZ Refrigerant lines to A/C compressorE70M821 Nm
5AZ Pressure/suction lines to double pipeE70M818 Nm
6AZ Pressure sensor in refrigerant lineE7010 Nm

TIGHTENING TORQUES - REFRIGERANT LINES AND EXPANSION VALVE

TypeThreadTightening specificationMeasure
1AZ Bulkhead adapterE85, E861.0 ± 0.3 Nm
2AZ Fan for heater/air conditionerE85, E861.5 ± 0.3 Nm
3AZ Controller for heater - A/C system fanE85, E861.0 ± 0.3 Nm
4AZ Air conditioner to bulkheadE60, E61, E63, E64, E83, E81, E87, E90, E91, E92, E936 Nm
E706.5 Nm
5AZ Cooler box to luggage compartment partition wallE65, E66, E674.5 Nm
6AZ Air conditioner to support tubeE81, E87, E90, E91, E92, E939 Nm
7AZ Mounting, positive/negative lead, to electric auxiliary heaterE838.8 Nm

TIGHTENING TORQUES - HOUSING, HEATER/AIR CONDITIONER

TypeThreadTightening specificationMeasure
1AZ Refrigerant lines to expansion valve/double pipeE70M68.8 Nm
2AZ Expansion valve to heater - A/CE70M68.8 Nm
3AZ Refrigerant lines to condenserE70M818 Nm
4AZ Refrigerant lines to A/C compressorE70M821 Nm
5AZ Pressure/suction lines to double pipeE70M818 Nm
6AZ Pressure sensor in refrigerant lineE7010 Nm

TIGHTENING TORQUES - REFRIGERANT LINES AND EXPANSION VALVE

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