17 40 Additional Fan (electric)
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Electric auxiliary fan on fan cowl | E46 | 6 Nm | ||
| 2AZ | Electronics for auxiliary fan on fan cowl | E46 | 6 Nm | ||
TIGHTENING TORQUE SPECIFICATION - ADDITIONAL FAN (ELECTRIC)
17 00 Coolant
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Hose clamps to coolant hoses 32... 48 mm dia. | All | 2.5 Nm | ||
| 2AZ | Bleed screw (WAF 8) to thermostat housing | All, without E46 | 8 Nm | ||
| Plastic bleed screws to coolant lines | E46 | 2 -0.5/+1 Nm | |||
| 3AZ | Level switch (WAF 30) to coolant expansion tank | All | 3 Nm | ||
| 4AZ | Bleed screw to water valve or auxiliary water pump | E90/E91 | 3.5 Nm | ||
TIGHTENING TORQUE SPECIFICATION - COOLANT
17 21 Engine Oil Cooler
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Engine oil cooler to body | All | 14 Nm | ||
| Oil cooler vapor extraction guide to trim panel | E36/M3 | B4.8 | 4 Nm | ||
TIGHTENING TORQUE SPECIFICATION - ENGINE OIL COOLER
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Transmission oil-water heat exchanger to front axle carrier | N52 | M6x35 | 8 Nm | |
| 2AZ | Engine oil cooler to holder | N52 | M8 x 35 | 12 Nm | |
| 3AZ | Engine oil cooler to holder | N52 | Oval-head screw | 3 Nm | |
TIGHTENING TORQUE SPECIFICATION - ENGINE OIL COOLER
17 22 Oil Cooler Pipes
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 5AZ | Cap nut on transmission oil cooler (on radiator) and on transmission | All | M18 x 1.5 | 20 Nm | |
| 5HP30 | M22 x 1.5 | 28 Nm | |||
| 6AZ | Oil lines on transmission | ||||
| Hollow bolt | All | M16 x 1.5 | 37 Nm | ||
| 7AZ | Oil lines on transmission oil cooler | A 5 S 300 J | 28 Nm | ||
| Hollow bolt | All | M14 x 1.5 | 27 Nm | ||
| 8AZ | Screw-in fitting on transmission | All | M14x1.5 und M16x1.5 | 37 Nm | |
| 9AZ | Oil hose on oil pipe | E23 | 28 Nm | ||
| 10AZ | Oil pipe bracket on radiator | E23 | 2 Nm | ||
| 11AZ | Oil pipe bracket on body | E23 | 6.5 Nm | ||
| 12AZ | Oil cooler on transmission | 5HP30 | 10 Nm | ||
| 13AZ | Transmission oil cooler line to transmission | N42 | M8 | 21 Nm | |
TIGHTENING TORQUE SPECIFICATION - OIL COOLER PIPES
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Transmission oil cooler line to transmission | N52K | M8x28 | 20 Nm | |
| 2AZ | Transmission oil cooler line to oil sump | N52K | M6 | 10 Nm | |
| 3AZ | Transmission oil cooler line to transmission sump | N52K | M6x35 | 8 Nm | |
| 4AZ | Transmission oil cooler line to transmission oil-water heat exchanger | N52K | M6x35 | 8 Nm | |
| 5AZ | Engine oil cooler lines to oil module/engine oil cooler | N52K | M8 | 20 Nm | |
TIGHTENING TORQUE SPECIFICATION - OIL COOLER PIPES
17 11 Radiator and Mounting Parts
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Radiator to body | ||||
| Self-tapping screw | All | B6.3 | 9 Nm | ||
| All | M6 | 10 Nm | |||
| 2AZ | Drain plug to radiator | All | 2.5 Nm | ||
| 3AZ | Temperature switch to radiator (91 °C/99 °C) max. | All | 15 Nm | ||
| 4AZ | Expansion tank to body | All | 9 Nm | ||
| M57TU/E65 | 4 Nm | ||||
| 5AZ | Radiator on module carrier | E46 | 4 + 1 Nm | ||
| 6AZ | Retaining plate, expansion tank, to radiator | E46 | 4 + 1 Nm | ||
| 7AZ | Fan cowl on radiator | E46 | 4 + 1 Nm | ||
| 8AZ | Plug in radiator (temperature switch omitted) | E36/7/M54 | M14 x 1.5 | 15 Nm | |
| 9AZ | Mounting plate to radiator | M57TU/E65 | 4.5 Nm | ||
| 10AZ | Radiator bracket | All | 2.5 Nm | ||
TIGHTENING TORQUE SPECIFICATION - RADIATOR AND MOUNTING PARTS
17 10 Radiator, expansion tank (N52K, N54)
| Type | Thread | Tightening specification | Measure | ||
|---|---|---|---|---|---|
| 1AZ | Fan cowl to coolant radiator | N52K/N54 | 4.5 Nm | ||
| 2AZ | Coolant radiator to module carrier | N52K/N54 | 4.5 Nm | ||
| 3AZ | Intercooler to module carrier | N54 | 4.5 Nm | ||
| 4AZ | Coolant expansion tank to body | N52K/N54 | M6 | 8 Nm | |
| 5AZ | Coolant pipe to front axle carrier | N54 | M6 | 7.3 Nm | |
| 6AZ | Transmission oil cooler to fan cowl | N52K/N54 | 4.5 Nm | ||
TIGHTENING TORQUE SPECIFICATION - RADIATOR, EXPANSION TANK (N52K, N54)