Tightening Torques
13 31 FUEL PUMP WITH DRIVE AND PIPES
| Type | Thread | Measure | |
| 1AZ Fuel Pump To Engine | All | - | 12 N.m |
| 2AZ Fuel Pipe Coupling Nut | All/with K-Jetronic | M8 | 9 N.m |
| 3AZ Fuel Pipe Coupling Bolt | All/with K-Jetronic | M12 | 20 N.m |
| 4AZ Fuel Pipe To Pressure Regulator | All/with K-Jetronic | - | 30 N.m |
| Return Pipe Connector To Pressure Regulator | All/with K-Jetronic | - | 27 N.m |
13 32 FUEL FILTER TIGHTENING TORQUES
| 1AZ Fuel Line To Filter Housing And Injection Pump | Type | Thread | Measure |
| Coupling Nut | M21/M51/M41 | M14 x 1.5 | 14 N.m |
| Adapter | M21/M51/M41 | M12 x 1.5 | 9 N.m |
| Hollow Bolt | M21/M51/M41 | M14 x 1.5 | 14 N.m |
| 2AZ Fuel Filter To Holder | M51/M41 | M8 | 22 N.m |
| 3AZ, Air Duct To Fuel Cooler | M47 | 5.7 N.m | |
| M57 | 2 N.m | ||
| 4AZ Fuel Filter Cover | M47 | 25 N.m | |
| 5AZ Fuel Filter With holder to Body | N42 | 8.8 N.m |
13 51 Injection Pump, Control Receptacle
| Type | Measure | |
| 1AZ Plug for high pressure section of injection pump | M21/M51/M41 | 25 N.m |
| 2AZ Distributor injection pump to holder | M21/M51/M41 | 25 N.m |
| 3AZ Electric cold start valve to injection pump | M21/M51/M41 | 20 + 5 N.m |
| 4AZ Electric cold start valve to injection pump | M21 | 20 N.m |
| 5AZ Coupling bolt (OUT) to injection pump (fuel return) | M21/M51/M41 | 25 N.m |
| 6AZ Pressure valve holder to injection pump | M21/M51 | 45 N.m |
| 7AZ Expansion element housing (temperature dependent idling speed boost) to injection pump | M21 | 18 N.m |
| 8AZ Distributor injection pump to flange and console | M21/M51/M41 | 22 N.m |
| 9AZ Electrical line on fuel cutout device | M51/M41 | 2.5 N.m |
| 10AZ Fuel feed line to injection pump | M47 | 30 N.m |
| 11AZ Fuel return line to injection pump | M47 | 25 N.m |
| 12AZ Plug for static basic adjustment (injection pump VP44) | M47 | 13 N.m |
| 13AZ Blocking screw for injection pump shaft without spacer place (injection pump VP44) | M47 | 31 N.m |
| 14AZ Blocking screw for injection pump shaft with spacer plate (injection pump VP 44) | M47 | 13 N.m |
| 15AZ Injection line (union nut) to injection pump (VP 44) | M47 | 30 N.m |
13 62 Senders for Control Unit
| Type | Measure | |
| 1AZ | M21 / M51 | 18 N.m |
| 2AZ | M60 / 1 / M60 / 2 / M21 / M51 | 18 N.m |
| All others | 13 N.m | |
| 3AZ | All | 28 N.m |
| 4AZ | All | 13 N.m |
| 5AZ | M51 / M41 | 4 N.m |
| Charge air pressure sensor on intake manifold | M47 | 5 N.m |
| 6AZ | M41 / M42 / M44 / S50 / S52 / M52 / M57 / M67 / M62 / M73 | 13 N.m |
| 7AZ Air Mass sensor on lower section of air filter housing | M51 | 3.5 N.m |
| Air mass flow sensor to cylinder head cover | M47 / M47TU / M57 / M57TU | 4.5 N.m |
| 8AZ Pulse generator, camshaft to cylinder head cover | M57 | 4.5 N.m |
| M47TU / M57TU | 3.5 N.m | |
| 9AZ Intake neck on air mass flow sensor | M47 | 9 N.m |
13 64 Fuel Injectors
| Type | Thread | Measure | |
| 1AZ Fuel injector to intake manifold | All | M6 | 10 N.m |
| 2AZ Coupling nut on fuel injector | All/with K-Jet. | 25 N.m |