7 00 Coolant
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Coolant hoses 32-48 mm dia. | All | 2.5 N.m. | ||
| 2AZ Bleeder screw (8 mm wrench size) on thermostat housing | All, without E46 | 8 N.m. | ||
| Plastic vent screws on coolant lines | E46 | 2 -0.5/+1 N.m. | ||
| 3AZ Level switch (30 mm wrench size) to coolant expansion tank | All | 3 N.m |
COMPONENT TIGHTENING TORQUE SPECIFICATIONS (1AZ - 3AZ)
17 11 Radiator and Mounting Parts
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Radiator to body | ||||
| Self-tapping screw | All | B6.3 | 9 N.m. | |
| All | M6 | 10 N.m. | ||
| 2AZ Drain plug to radiator | All | 2.5 N.m. | ||
| 3AZ Temperature switch to radiator (91° C / 99° C) max. | All | N.m. | ||
| 4AZ Expansion tank to body | All | 9 N.m. | ||
| M57TU / E65 | 4 N.m. | |||
| 5AZ Radiator on module carrier | E46 | 4 + 1 N.m. | ||
| 6AZ Retaining plate, expansion tank, to radiator | E46 | 4 + 1 N.m. | ||
| 7AZ Fan cowl on radiator | E46 | 4 + 1 N.m. | ||
| 8AZ Plug in radiator (temperature switch omitted) | E36/7 / M54 | M14x1.5 | 15 N.m. | |
| 9AZ Mounting plate to radiator | M57TU / E65 | 4.5 N.m. | ||
| 10AZ Radiator bracket | All | 2.5 N.m. |
RADIATOR AND MOUNTING PARTS TIGHTENING TORQUE SPECIFICATIONS (1AZ - 10AZ)
17 21 Engine Oil Cooler
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Engine oil cooler to body | All | 14 N.m. | ||
| Oil cooler vapor extraction guide to trim panel | E36 / M3 | B4.8 | 4 N.m. |
ENGINE OIL COOLER TIGHTENING TORQUE SPECIFICATIONS (1AZ)
17 40 Additional Fan (electric)
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Electric auxiliary fan on fan cowl | E46 | 6 N.m. | ||
| 2AZ Electronics for auxiliary fan on fan cowl | E46 | 6 N.m. |
ADDITIONAL FAN TIGHTENING TORQUE SPECIFICATIONS (1AZ - 2AZ)
17 22 Oil Cooler Pipes
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Pipes to engine oil cooler | All | 28 N.m. | ||
| 2AZ Pipes to oil filter head | E36 / M3 | 25 N.m. | ||
| 3AZ Holder on oil cooler pipes | All | 6 N.m. | ||
| 4AZ Holder for oil cooler pipes to alternator | E36 / M3 | M6 | 10 N.m. | |
| 5AZ Cap nut on transmission oil cooler (on radiator) and on transmission | All | M18x1.5 | 20 N.m. | |
| 5HP30 | M22x1.5 | 28 N.m. | ||
| 6AZ Oil lines on transmission | ||||
| Hollow bolt | All | M16x1.5 | 37 N.m. | |
| 7AZ Oil lines on transmission oil cooler | A 5 S 300 J | 28 N.m. | ||
| Hollow bolt | All | M14x1.5 | 27 N.m. | |
| 8AZ Screw-in fitting on transmission | All | M14x1.5 and M16x1.5 | 37 N.m. | |
| 9AZ Oil hose on oil pipe | E23 | 28 N.m. | ||
| 10AZ Oil pipe bracket on radiator | E23 | 2 N.m. | ||
| 11AZ Oil pipe bracket on body | E23 | 6.5 N.m. | ||
| 12AZ Oil cooler on transmission | 5HP30 | 10 N.m. | ||
| 13AZ Transmission oil cooler line to transmission | N42 | M8 | 21 N.m. |
OIL COOLER PIPES TIGHTENING TORQUE SPECIFICATIONS (1AZ - 13AZ)
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Electric auxiliary fan on fan cowl | E46 | 6 N.m. | ||
| 2AZ Electronics for auxiliary fan on fan cowl | E46 | 6 N.m. |
AUXILIARY ELECTRICAL TIGHTENING TORQUE SPECIFICATIONS (1AZ - 2AZ)