51 11 Bumper, Front
M4 (EXCEPT GTS):
TIGHTENING TORQUE SPECIFICATION (FRONT BUMPER)
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Bumper panel on air duct, top | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F48/F49/F80/F82/F83/F87/F45/F46/F48/F49/F52 | 4.6 Nm | ||
| 2AZ Lock support to deformation element, top | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87/F45/F46/F48/F49/F52 | 11.8 Nm | ||
| 3AZ Deformation element, top, to engine carrier | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87/F45/F46/F48/F49/F52 | M12 | Replace screws | |
| Jointing torque | 100 Nm | |||
| Angle of rotation | 180° | |||
| 4AZ Support, top, to deformation element, top | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87/F45/F46/F48/F49/F52 | M8 | Replace screws | 28 Nm |
| 5AZ Deformation element, bottom, to deformation element, top | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87 | M6 | Replace screws | 11.8 Nm |
| 6AZ Deformation element, bottom, to adapter plate, front axle carrier | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87 | 19 Nm | ||
| F45/F46/F48/F49/F52 | 11.8 Nm | |||
| 7AZ V-support on deformation element/connection, top | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87 | Replace screw | 19 Nm | |
| F48/F49/F52 | 11.8 Nm | |||
| 8AZ Support for number plate on bumper | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87 | 1 Nm | ||
| F45/F46/F48/F49 | 0.8 Nm | |||
| F52 | 1.8 Nm | |||
| 9AZ Number plate on bumper panel (thread repair) | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87 | M5 | 4.5 Nm | |
| 10AZ Carrier, bottom, to deformation element, bottom (without M Aerodynamic package) (with M Aerodynamics package) |
F20/F21/F22/F23/F32/F33/F34/F36/F80/F82/F83/F87 | M6 | Replace screws | 11.8 Nm |
| F45/F46/F48/F49/F52 | M6x30 | Replace screws | 8 Nm | |
| F30/F31/F35 | M6x45 | Replace screws | 11.8 Nm | |
| F30/F31/F35 | M6x50 | Replace screws | 8 Nm | |
| 11AZ Bumper panel on side wall | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F48/F49/F80/F82/F83/F87 | 3 Nm | ||
| 12AZ Cross member on top air duct | F20/F21/F22/F23 | 4.6 Nm | ||
| 13AZ Air duct on top cross connection | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87 | 5 Nm | ||
| F48/F49 6 | Nm | |||
| 14AZ Cross connection on support | F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/F80/F82/F83/F87 | 11.8 Nm | ||
| 15AZ Air duct to deformation element top/bottom | F45/F46/F48/F49/F52 | 6 Nm | ||
| 16AZ Bumper panel on side wall | F48/F49 | 3 Nm | ||
| 17AZ Bumper trim, lower | F48/F49 | 2.5 Nm | ||
| 18AZ Support to U-strut | F52 | 11.8 Nm |
M4 GTS (2016 ONLY):
51 11 FRONT BUMPER - TIGHTENING TORQUE SPECIFICATION
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Front splitter to front splitter adapter | F82 GTS | 6 Nm | ||
| 2AZ Front splitter adapter to center support | F82 GTS | 6 Nm | ||
| 3AZ Front splitter adapter to bracket on the side | F82 GTS | 2.6 Nm | ||
| 4AZ Front splitter adapter to bumper panel | F82 GTS | 2.6 Nm | ||
| 5AZ Front splitter bracket to deformation element | F82 GTS | M8x25 | 10 Nm | |
| M10 | 19 Nm | |||
| 6AZ Center front splitter support to support | F82 GTS | 6 Nm | ||
| 7AZ Stiffening plate cover | F82 GTS | 2.6 Nm |