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Heating and Air Conditioning - Tightening Torques BMW X5 E53

Automatic HVAC System

64 12 Additional Heater with Controls

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

64 12 ADDITIONAL HEATER WITH CONTROLS TIGHTENING SPECIFICATION

64 12 Electric Auxiliary Heater

TypeThreadTightening specificationMeasure
1AZ Battery positive and negative leads to auxiliary heaterE46M68.8 N.m

64 12 ELECTRIC AUXILIARY HEATER TIGHTENING SPECIFICATION

64 52 A/C compressor

TypeThreadTightening specificationMeasure
1AZ Refrigerant lines to A/C compressorE36/7 M54 / E36/7 S54 / E38 / E39 / E46 / E52 / E53 / E60 / E61 / E63 / E64 / E65 / E66 / E67 / E83 / E85 / E87 / E90 / E91M820 N.m
2AZ Filler plug, A/C compressorE36 / E38 / E39 / E46 / E52 / E53 / E60 / E61 / E63 / E64 / E65 / E66 / E67 / E83 / E85 / E87 / E90 / E9130 +/- 1 N.m
3AZ A/C compressor to carrierM54 / N62 / S85M821.4 N.m
N46 / N45 / M57TU / M47T2 / M57T2M819 N.m
N52M8 x 87Replace aluminium screw/bolt
Jointing torque10 N.m
Torque angle180 +/- 15°
E85 S5420 N.m
4AZ Belt pulley / hub to A/C compressorM47T235 +/- 5 N.m

64 52 A/C COMPRESSOR TIGHTENING SPECIFICATION

64 53 Refrigerant Lines and Expansion Valve

TypeThreadTightening specificationMeasure
1AZ Refrigerant lines to dryer bottleE83, E85M820 N.m
2AZ Refrigerant lines to expansion valve/double pipeE46 / E83 / E85 / E87 / E90 / E91M820 N.m
E53M818 N.m
3AZ Adapter plate to expansion valveE85M610+/-2 N.m
4AZ Expansion valve to heater - A/CE85M53.5 +/- 0.7 N.m
5AZ Refrigerant line to bulkheadE85M68.6 N.m
6AZ Refrigerant lines to condenserE60, E61, E63, E64, E83, E85, E87, E90, E91M820 N.m
7AZ Refrigerant lines to expansion valveE60 / E61 / E63 / E64M68.8 N.m
8AZ Refrigerant line to assembly compartment partition reinforcementE60 / E61 / E63 / E64M67.6 N.m
9AZ Expansion valve to heater - A/CE46 / E60 / E61 / E63 / E64 / E83M55.5 N.m
E85M53.5 +/- 0.7 N.m
10AZ Refrigerant line to bodyE46 / E83M65.5 N.m
11AZ Double pipe to expansion valveE46 / E83M68.0 N.m
12AZ Screw plug to condenserE53 / E87 / E90 / E913.0 +/- 0.5 N.m
13AZ Expansion valve to retainerE87 / E90 / E91 M68.0 N.m
13AZ Pressure sensor in refrigerant lineE53, E60, E61, E63, E64, E65, E66, E83, E85, E87, E90, E9110 N.m

64 53 REFRIGERANT LINES AND EXPANSION VALVE TIGHTENING SPECIFICATION

TypeThreadTightening specificationMeasure
1AZ Refrigerant lines to dryer bottleE83, E85M820 N.m
2AZ Refrigerant lines to expansion valve/double pipeE46 / E83 / E85 / E87 / E90 / E91M820 N.m
E53M818 N.m
3AZ Adapter plate to expansion valveE85M610+/-2 N.m
4AZ Expansion valve to heater - A/CE85M53.5 +/- 0.7 N.m
5AZ Refrigerant line to bulkheadE85M68.6 N.m
6AZ Refrigerant lines to condenserE85 / E60 / E61 / E63 / E64 / E87 / E90 / E91M820 N.m
7AZ Refrigerant lines to expansion valveE60 / E61 / E63 / E64M68.8 N.m
8AZ Refrigerant line to assembly compartment partition reinforcementE60 / E61 / E63 / E64M67.6 N.m
9AZ Expansion valve to heater - A/CE46 / E60 / E61 / E63 / E64 / E83M55.5 N.m
E85M53.5 +/- 0.7 N.m
10AZ Refrigerant line to bodyE46 / E83M65.5 N.m
11AZ Double pipe to expansion valveE46 / E83M68.0 N.m
12AZ Screw plug to condenserE53 / E87 / E90 / E913.0 +/- 0.5 N.m
13AZ Expansion valve to retainerE87 / E90 / E91M68.0 N.m
13AZ Pressure sensor in refrigerant lineE53, E60, E61, E63, E64, E65, E66, E83, E85, E87, E90, E9110 N.m

64 53 REFRIGERANT LINES AND EXPANSION VALVE TIGHTENING SPECIFICATION

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