Home ReviewsRefund
Home/BMW/Z4/BMW Z4 E85/E86 (2002-2005)/Repair manual/Automatic HVAC System/Heating and Air Conditioning - Tightening Torques
Contents Wiring diagrams Section: Automatic HVAC System All sections

Heating and Air Conditioning - Tightening Torques BMW Z4 E85/E86

Automatic HVAC System ~114 words

64 11 Housing, heater/air conditioner

ApplicationTypeMeasure
1AZ Bulkhead adapterE851.0 +/- 0.3 Nm
2AZ Fan for heater/air conditionerE851.5 +/- 0.3 Nm
3AZ Controller for heater - A/C system fanE851.0 +/- 0.3 Nm
4AZ Air conditioner to bulkheadE60 / E61 / E63 / E64 / E87 / E906.0 Nm
5AZ Cooler box to luggage compartment partition wallE65 / E66 / E674.5 Nm
6AZ Air conditioner to support tubeE87 / E909 Nm

64 11 HOUSING, HEATER/AIR CONDITIONER TIGHTENING SPECIFICATION

64 12 Additional Heater with Controls

ApplicationTypeThreadDimension
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

64 12 ADDITIONAL HEATER WITH CONTROLS TIGHTENING SPECIFICATION

64 51 Air Conditioner (Evaporator) Control Units

ApplicationTypeValue
1AZ High/medium pressure pressostat Bolt cement, Part No. 81 22 9 407 144.All25 Nm
2AZ Low pressure pressostat. Bolt cement, Part No. 81 22 9 407 144All19 Nm
3AZ Three-way safety switchAll25 Nm

64 51 AIR CONDITIONER (EVAPORATOR) CONTROL UNITS TIGHTENING SPECIFICATION

ApplicationTypeMeasure
1AZ Bulkhead adapterE851.0 +/- 0.3 Nm
2AZ Fan for heater/air conditionerE851.5 +/- 0.3 Nm
3AZ Controller for heater - A/C system fanE851.0 +/- 0.3 Nm
4AZ Air conditioner to bulkheadE60 / E61 / E63 / E64 / E87 / E906.0 Nm
5AZ Cooler box to luggage compartment partition wallE65 / E66 / E674.5 Nm
6AZ Air conditioner to support tubeE87 / E909 Nm

64 11 HOUSING, HEATER/AIR CONDITIONER TIGHTENING SPECIFICATION

64 52 A/C compressor

ApplicationTypeThreadTightening specificationMeasure
1AZ Refrigerant lines to A/C compressorE36/7 M54 / E36/7 S54 / E38 / E39 / E46 / E52 / E53 / E65 / E66 / E67 / E85 / E60 / E61 / E63 / E64 / E87 / E90 / E91M820 Nm
2AZ Filler plug, A/C compressorAll E Series30 +/- 1 Nm
3AZ A/C compressor to carrierM54 / N62 / S85M821.4 Nm
N46 / N45 / M57TU / M47T2M819 Nm
N52M8 x 87Replace aluminium screw/bolt
Jointing torque10 Nm
Torque angle180 +/- 15°

64 52 A/C COMPRESSOR TIGHTENING SPECIFICATION

64 53 Refrigerant Lines and Expansion Valve

ApplicationTypeThreadMeasure
1AZ Refrigerant lines to dryer bottleE85M820 Nm
2AZ Refrigerant lines to expansion valve/double pipeE46 / E83 / E85 / E87 / E90 / E91M820 Nm
E53M818 Nm
3AZ Adapter plate to expansion valveE85M610 +/- 2 Nm
4AZ Expansion valve to heater - A/CE85M53.5 +/- 0.7 Nm
5AZ Refrigerant line to bulkheadE85M68.6 Nm
6AZ Refrigerant lines to condenserE85 / E60 / E61 / E63 / E64 / E87 / E90 / E91M820 Nm
7AZ Refrigerant lines to expansion valveE60 / E61 / E63 / E64M68.8 Nm
8AZ Refrigerant line to assembly compartment partition reinforcementE60 / E61 / E63 / E64M67.6 Nm
9AZ Expansion valve to heater - A/CE46 / E60 / E61 / E63 / E64 / E83M55.5 Nm
E85M53.5 +/- 0.7 Nm
10AZ Refrigerant line to bodyE46 / E83M65.5 Nm
11AZ Double pipe to expansion valveE46 / E83M68.0 Nm
12AZ Screw plug to condenserE53 / E87 / E90 / E913.0 +/- 0.5 Nm
13AZ Expansion valve to retainerE87 / E90 / E91M68.0 Nm

64 53 REFRIGERANT LINES AND EXPANSION VALVE TIGHTENING SPECIFICATION

ApplicationTypeMeasure
1AZ Bulkhead adapterE851.0 +/- 0.3 Nm
2AZ Fan for heater/air conditionerE851.5 +/- 0.3 Nm
3AZ Controller for heater - A/C system fanE851.0 +/- 0.3 Nm
4AZ Air conditioner to bulkheadE60 / E61 / E63 / E64 / E87 / E906.0 Nm
5AZ Cooler box to luggage compartment partition wallE65 / E66 / E674.5 Nm
6AZ Air conditioner to support tubeE87 / E909 Nm

64 11 HOUSING (HEATER/AIR CONDITIONER) TIGHTENING SPECIFICATION

ApplicationTypeThreadMeasure
1AZ Refrigerant lines to dryer bottleE85M820 Nm
2AZ Refrigerant lines to expansion valve/double pipeE46 / E83 / E85 / E87 / E90 / E91M820 Nm
E53M818 Nm
3AZ Adapter plate to expansion valveE85M610 +/- 2 Nm
4AZ Expansion valve to heater - A/CE85M53.5 +/- 0.7 Nm
5AZ Refrigerant line to bulkheadE85M68.6 Nm
6AZ Refrigerant lines to condenserE85 / E60 / E61 / E63 / E64 / E87 / E90 / E91M820 Nm
7AZ Refrigerant lines to expansion valveE60 / E61 / E63 / E64M68.8 Nm
8AZ Refrigerant line to assembly compartment partition reinforcementE60 / E61 / E63 / E64M67.6 Nm
9AZ Expansion valve to heater - A/CE46 / E60 / E61 / E63 / E64 / E83M55.5 Nm
E85M53.5 +/- 0.7 Nm
10AZ Refrigerant line to bodyE46 / E83M65.5 Nm
11AZ Double pipe to expansion valveE46 / E83M68.0 Nm
12AZ Screw plug to condenserE53 / E87 / E90 / E913.0 +/- 0.5 Nm
13AZ Expansion valve to retainerE87 / E90 / E91M68.0 Nm

64 53 REFRIGERANT LINES AND EXPANSION VALVE TIGHTENING SPECIFICATION

64 53 Condenser and Drier with Pipes

ApplicationTypeThreadMeasure
1AZ Pipe connectionsAll5/8"20 Nm
All3/4"39 Nm
All7/8"42 Nm
All11/16"48 Nm

64 53 CONDENSER AND DRIER WITH PIPES TIGHTENING SPECIFICATION

More articles — HVAC