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Heating and Air Conditioning - Tightening Torques BMW Z4 E89

64 52 A/C compressor

TypeThreadTightening specificationMeasure
1AZRefrigerant lines to compressorE84, E89M818.5 Nm
2AZCompressor to bracketE84, E89M821 Nm
3AZBearing block, compressor, to crankcaseN43/N47/N54, E84, E89M819 Nm
N52K, E84, E89M8Replace screws10±1.5 Nm
Angle of rotation180 °

TIGHTENING TORQUE SPECIFICATION - A/C COMPRESSOR

64 11 Housing, heater/air conditioner

TypeThreadTightening specificationsDimension
1AZBulkhead adapterE85, E86, E891.0 ± 0.3 Nm
2AZBlower for heater/air conditionerE85, E861.5 ± 0.3 Nm
3AZController for heating and air conditioning system blowerE84, E85, E86, E891.0 ± 0.3 Nm
4AZAir conditioner to bulkheadE60, E61, E63, E64, E83, E81, E82, E87, E88, E90, E91, E92, E936 Nm
E70, E71, E726.5 Nm
5AZCooler box to luggage compartment partition wallE65, E66, E674.5 Nm
6AZAir conditioner to support tubeE81, E82, E84, E87, E88, E90, E91, E92, E939 Nm
7AZMounting, positive/negative lead, to electric auxiliary heaterE838.8 Nm

TIGHTENING TORQUE SPECIFICATION - HOUSING, HEATER/AIR CONDITIONER

TypeThreadTightening specificationMeasure
1AZBulkhead adapterE85, E86, E891.0 ± 0.3 Nm
2AZFan for heater/air conditionerE85, E861.5 ± 0.3 Nm
3AZController for heater - A/C system fanE84, E85, E86, E891.0 ± 0.3 Nm
4AZAir conditioner to bulkheadE60, E61, E63, E64, E83, E81, E82, E87, E88, E90, E91, E92, E936 Nm
E70, E71, E726.5 Nm
5AZCooler box to luggage compartment partition wallE65, E66, E674.5 Nm
6AZAir conditioner to support tubeE81, E82, E84, E87, E88, E90, E91, E92, E939 Nm
7AZMounting, positive/negative lead, to electric auxiliary heaterE838.8 Nm

TIGHTENING TORQUE SPECIFICATION - HOUSING, HEATER/AIR CONDITIONER

64 53 Refrigerant Lines and Expansion Valve

TypeThreadTightening specificationsDimension
1AZRefrigerant lines to dryer flaskE83, E85, E86M820 Nm
2AZRefrigerant lines to expansion valve/double pipeE46, E83, E85, E86, E81, E82, E87, E88, E89, E90, E91, E92, E93M820 Nm
E53M818 Nm
E84M818.5 NM
3AZAdapter plate to expansion valveE85, E86, E89M610 ± 2 Nm
4AZExpansion valve to heater - A/CE85, E86, E89M55.5 Nm
5AZRefrigerant line to heater end panelE85, E86M68.6 Nm
6AZRefrigerant lines to capacitorE60, E61, E63, E64, E81, E82, E83, E85, E86, E87, E88, E89, E90, E91, E92, E93M820 Nm
E84M818.5 Nm
7AZRefrigerant lines to expansion valveE60, E61, E63, E64M68.8 Nm
8AZRefrigerant line to assembly compartment partition reinforcementE60, E61, E63, E64M67.6 Nm
9AZExpansion valve to heater - A/CE46, E60, E61, E63, E64, E83M55.5 Nm
10AZRefrigerant line to bodyE46, E83M65.5 Nm
11AZDouble pipe to expansion valveE46, E83M68.0 Nm
12AZScrew plug to capacitorE53, E81, E82/E84, E87, E88, E90, E91, E923.0 ± 0.5 Nm
13AZExpansion valve to retaining clipE81, E82, E84, E87, E88, E90, E91, E92, E93M65.5 Nm
14AZPressure sensor in refrigerant lineE53, E60, E61, E63, E64, E65, E66, E81, E82, E83, E84, E85, E86, E87, E88, E89, E90, E91, E92, E9310 Nm
15AZRefrigerant line to adapter leadE60/N53, E61/N53, E63/N53, E64/N53, E60/N54, E61/N5418 Nm

TIGHTENING TORQUE SPECIFICATION - REFRIGERANT LINES AND EXPANSION VALVE