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Fuel System - Tightening Torques (n52, n62) BMW X5 E70

Fuel System

13 31 Fuel Pump with Drive and Pipes

TypeThreadTightening specificationMeasure
1AZ Fuel pump to engineAll12 Nm
2AZ Fuel pipe coupling boltAll / with K-Jetr.M89 Nm
3AZ Fuel pipe coupling boltAll / with K-Jetr.M1220 Nm
4AZ Fuel pipe to pressure regulatorAll / with L-Jetr.30 Nm
5AZ Return pipe connector to pressure regulatorAll / with L-Jetr.27 Nm

TECHNICAL DATA - FUEL PUMP WITH DRIVE AND PIPES

13 32 Fuel Filter

TypeThreadTightening specificationMeasure
1AZ Fuel line to filter housing and injection pump
Coupling nutM21 / M51 / M41M14 x 1.514 Nm
AdapterM21 / M51 / M41M12 x 1.59 Nm
Hollow boltM21 / M51 / M41M14 x 1.514 Nm
2AZ Fuel filter to holderM51 / M41M822 Nm
3AZ Air duct to fuel coolerM475.7 Nm
M572 Nm
4AZ Fuel filter coverM4725 Nm
5AZ Fuel filter with holder to bodyN428.8 Nm

TECHNICAL DATA - FUEL FILTER

13 51 Injection Pump, Control Receptacle

TypeThreadTightening specificationMeasure
1AZ Plug for high pressure section of injection pumpM21 / M51 / M4125 Nm
2AZ Distributor injection pump to holderM21 / M51 / M4125 Nm
3AZ Electric shutoff to injection pumpM21 / M51 / M4120 ± 5 Nm
4AZ Electric cold start valve to injection pumpM2120 Nm
5AZ Coupling bolt (OUT) to injection pump (fuel return)M21 / M51 / M4125 Nm
6AZ Pressure valve holder to injection pumpM21 / M5145 Nm
7AZ Expansion element housing (temperature dependent idling speed boost) to injection pumpM2118 Nm
8AZ Distributor injection pump to flange and consoleM21 / M51 / M4122 Nm
9AZ Electr. line on fuel cutout deviceM51 / M412.5 Nm
10AZ Fuel feed line to injection pump (VP44)M4730 Nm
11AZ Fuel return line to injection pump (VP44)M4725 Nm
12AZ Plug for static basic adjustment (injection pump VP44)M4713 Nm
13AZ Blocking screw for injection pump shaft without spacer plate (injection pump VP44)M4731 Nm
14AZ Blocking screw for injection pump shaft with spacer plate (injection pump VP44)M4713 Nm
15AZ Injection line (union nut) to injection pump (VP44)M4730 Nm

TECHNICAL DATA - INJECTION PUMP, CONTROL RECEPTACLE

13 62 Senders for Control Unit (N52K)

TypeThreadTightening specificationMeasure
1AZ Camshaft sensor to cylinder headN52 / N52K / N53M6x168.8 Nm
2AZ Crankshaft sensor to crankcaseN52 / N52K / N53M6x163 Nm
3AZ Knock sensor to crankcaseN52 / N52K / N53M8x3110 Nm
4AZ Differential pressure sensor to intake manifoldN52 / N52K / N53K50x206 Nm
5AZ Water temperature sensor, screwedN52 / N52K / N53M12x1.513.5 Nm
6AZ Magnet wheel to eccentric shaftN52 / N52K / N53M6x208 Nm
7AZ VVT sensor to bearing bridgeN52 / N52K / N53M6x148 Nm
8AZ Air mass sensorN52 / N52K / N533 Nm

TECHNICAL DATA - SENDERS FOR CONTROL UNIT

13 62 Senders for Control Unit (N62TU)

TypeThreadTightening specificationMeasure
1AZ Differential pressure sensorN62TUK503.5 Nm
2AZ Knock sensor to cylinder headN62TUM821 Nm
3AZ Crankshaft sensor to transmission housingN62TUM69 Nm
4AZ Camshaft sensor to cylinder head coverN62TUDG 50 x 184.5 Nm
5AZ Temperature sensor, water/oilN62TUM12 x 1.514 Nm

TECHNICAL DATA - SENDERS FOR CONTROL UNIT

13 64 Fuel Injectors

TypeThreadTightening specificationMeasure
1AZ Fuel injector to intake manifoldAllM610 Nm
2AZ Coupling nut on fuel injectorAll / with K-Jetr.25 Nm

TECHNICAL DATA - FUEL INJECTORS

13 71 Air intake silencer

TypeThreadTightening specificationMeasure
1AZ Intake hose to throttle valve assemblyN52KHose clamp3 Nm
2AZ Intake hose to intake mufflerN52KHose clamp3 Nm

13 71 AIR INTAKE SILENCER

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