17 00 Coolant
| Application | Type | Measure |
|---|---|---|
| 1AZ Coolant hoses 32 ... 48 mm dia. | All | 2.5 Nm |
| 2AZ Bleeder screw (8 mm wrench size) on thermostat housing | All, without E46 | 8 Nm |
| Plastic vent screws on coolant lines | E46 | 2 -0.5/+1 Nm |
| 3AZ Level switch (30 mm wrench size) to coolant expansion tank | All | 3 Nm |
17 00 COOLANT COMPONENTS TIGHTENING SPECIFICATION
17 11 Radiator and Mounting Parts
| Application | Type | Thread | 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 |
17 11 RADIATOR AND MOUNTING PARTS TIGHTENING SPECIFICATION
17 21 Engine Oil Cooler
| Application | Type | Thread | Measure |
|---|---|---|---|
| 1AZ Engine oil cooler to body | All | 14 Nm | |
| Oil cooler vapor extraction guide to trim panel | E36 / M3 | B4.8 | 4 Nm |
17 21 ENGINE OIL COOLER TIGHTENING SPECIFICATION
17 40 Additional Fan (electric)
| Application | Type | Measure |
|---|---|---|
| 1AZ Electric auxiliary fan on fan cowl | E46 | 6 Nm |
| 2AZ Electronics for auxiliary fan on fan cowl | E46 | 6 Nm |
17 40 ADDITIONAL FAN (ELECTRIC) TIGHTENING SPECIFICATION
17 22 Oil Cooler Pipes
| Application | Type | Thread | Measure |
|---|---|---|---|
| 1AZ Pipes to engine oil cooler | All | 28 Nm | |
| 2AZ Pipes to oil filter head | E36 / M3 | 25 Nm | |
| 3AZ Holder on oil cooler pipes | All | 6 Nm | |
| 4AZ Holder for oil cooler pipes to alternator | E36 / M3 | M6 | 10 Nm |
17 22 OIL COOLER PIPES TIGHTENING SPECIFICATION
| Application | Type | Thread | 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 |
17 22 OIL COOLER PIPES TIGHTENING SPECIFICATION
| Application | Type | Measure |
|---|---|---|
| 1AZ Electric auxiliary fan on fan cowl | E46 | 6 Nm |
| 2AZ Electronics for auxiliary fan on fan cowl | E46 | 6 Nm |
17 40 ADDITIONAL FAN (ELECTRIC) TIGHTENING SPECIFICATION