Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 917 (FRONT AXLE - TIGHTENING TORQUES)12 STRUTS WITH RUBBER MOUNTS31 12 CONTROL ARMS AND STRUTS
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
31 12 Control Arms and Struts
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 31 12 Control Arms and Struts
WARNING: This page is about a different car, the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
CONTROL ARMS AND STRUTS - TIGHTENING TORQUES
| Type | Thread | Tightening specification | Measure | |
|---|---|---|---|---|
| 1AZ Tension strut to front axle support | E12, E24 / until 5.82 | tighten in normal position | 80 Nm | |
| E23 | tighten in normal position | 135 Nm | ||
| E39, E52 | tighten in normal position | 110 Nm | ||
| E53 | Replace screw tighten in normal position | 165 Nm | ||
| E60, E61, E63, E64, E65, E66, E67 | M12 10.9 | Replace screw & nut tighten in normal position | ||
| Jointing torque | 100 Nm | |||
| Torque angle | 90 ° | |||
| E83 | Replace screw tighten in normal position | |||
| Jointing torque | 165 Nm | |||
| Torque angle | 90 ° | |||
| 2AZ Control arm to front axle support | E24 / from 5.82, E28, E31, E32, E34, E38, E39 / 8 cyl. | tighten in normal position | 77.5 Nm | |
| E39 / 6 cyl., E52 | tighten in normal position | 110 Nm | ||
| E12, E21, E23, E24 / until 5.82 | tighten in normal position | 85 Nm | ||
| E53, E60, E61, E63, E64, E65, E66, E67, E83 | M12 10.9 | Replace screw & nut tighten in normal position | ||
| Jointing torque | 100 Nm | |||
| Torque angle | 90±15° | |||
| 3AZ Control arm (ball joint) on front axle support | E30 | Replace nut | 85 Nm | |
| E36, E46 | Replace nut | 90 Nm | ||
| E30 / Four Wheel Drive | Replace nut | 100 Nm | ||
| E85, E86 | M14x1.5 | Replace nut | 80 Nm | |
| 4AZ Control arm to spring strut | E21, E30 | 65 Nm | ||
| 5AZ Control arm to pivot mount/spring strut | E30 / Four Wheel Drive | 85 Nm | ||
| E30 / Four Wheel Drive | Polystop nut | 93 Nm | ||
| E34 / Four Wheel Drive | 80 Nm | |||
| 6AZ Control arm on steering knuckle/swivel bearing | E36, E46, E85, E86 | Use of impact screwdriver not permitted! Replace nut | 65 Nm | |
| E38 | Replace nut | 93 Nm | ||
| E39, E53, E52, E83, E60 / Four Wheel Drive, E61 / Four Wheel Drive, E67 | Replace nut | 80 Nm | ||
| E60 / REAR END, E61 / REAR END, E63, E64, E65, E66 | Replace nut | 165 Nm | ||
| 7AZ Bracket for control arm to engine carrier | E30 | 42 Nm | ||
| E36 | 47 Nm | |||
| E46 | Replace screws | 59 Nm | ||
| E85, E86 | M10 10.9 | Replace screws | 56 Nm | |
| 8AZ Ball joint for control arm to front axle carrier | E34 / Four Wheel Drive, E46 / Four Wheel Drive | 77 Nm | ||
| 9AZ Control arm to ball joint | E34 / Four Wheel Drive, E46 / Four Wheel Drive | 80 Nm | ||
| 10AZ Control arm holder to front axle support | E34 / Four Wheel Drive | 47 Nm | ||
| E46 / Four Wheel Drive | Replace screws | 59 Nm | ||
| 11AZ Pressure strut to body | E24 / from 5.82, E28 | tighten in normal position | 130 Nm | |
| 12AZ Traction strut on tie rod lever/steering knuckle/swivel bearing | E24, E28 / from 5.82, E31, E32, E34, E38 | 93 Nm | ||
| E39 | 80 Nm | |||
| 13AZ Pressure strut to connecting pipe/front axle support | E31, E32, E34, E38, E39 | tighten in normal position | 127 Nm | |
| 14AZ Pressure strut to cruciform reinforcement | E31 | tighten in normal position | 127 Nm | |
| 15AZ Connecting pipe to body | E31, E32, E34 | 127 Nm | ||
| 16AZ Connecting pipe support to body | E31, E32, E34 | 59 Nm | ||
| 17AZ Connecting pipe to trailing spring mount | E24 / from 5.82, E28 | 60 Nm | ||
| 18AZ Leading strut to tie rod arm | E23 | 85 Nm | ||
| 19AZ Tension strut on steering knuckle/swivel bearing | E39, E52, E67 | 80 Nm | ||
| E60 / REAR END, E61 / REAR END, E63, E64, E65, E66 | 165 Nm | |||
| 20AZ Tension strut to guide joint | E53, E83 | Replace nut | 80 Nm | |
| E60 / Four Wheel Drive, E61 / Four Wheel Drive | Replace nut | 165 Nm | ||
| 21 AZ Guide joint to swivel bearing | E53, E60 / Four Wheel Drive, E61 / Four Wheel Drive, E83 | Replace screws | 60 Nm |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.