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How to change rear upper arm on BMW 1 Convertible (E88) – replacement guide
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Important!
This replacement procedure can be used for:
BMW 1 Convertible (E88) 120i, BMW 1 Convertible (E88) 125i, BMW 1 Convertible (E88) 118i, BMW 1 Convertible (E88) 135i, BMW 1 Convertible (E88) 120 d, BMW 1 Convertible (E88) 118 d, BMW 1 Convertible (E88) 123 d, BMW 1 Convertible (E88) 120 i, BMW 1 Convertible (E88) 120 d, BMW 1 Convertible (E88) 118 d, BMW 1 Convertible (E88) 128i, BMW 1 Convertible (E88) 120 i, BMW 1 Convertible (E88) 135 i, BMW 1 Convertible (E88) 120 d, BMW 1 Convertible (E88) 118 i … View more
The steps may slightly vary depending on the car design.
BMW 1 Convertible (E88) 120i, BMW 1 Convertible (E88) 125i, BMW 1 Convertible (E88) 118i, BMW 1 Convertible (E88) 135i, BMW 1 Convertible (E88) 120 d, BMW 1 Convertible (E88) 118 d, BMW 1 Convertible (E88) 123 d, BMW 1 Convertible (E88) 120 i, BMW 1 Convertible (E88) 120 d, BMW 1 Convertible (E88) 118 d, BMW 1 Convertible (E88) 128i, BMW 1 Convertible (E88) 120 i, BMW 1 Convertible (E88) 135 i, BMW 1 Convertible (E88) 120 d, BMW 1 Convertible (E88) 118 i … View more
The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Control Arm for 1 Convertible (E88) and other BMW models
Suspension arm
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #18
Drive socket # 18
Wheel impact socket #17
Ratchet wrench
Torque wrench
Tap wrench
Flat Screwdriver
Hydraulic transmission jack
Wheel chock
Replacement: rear upper arm – BMW 1 Convertible (E88). AUTODOC experts recommend:
- The replacement procedure is identical for the right and left upper control arms.
- Please note: all work on the car – BMW 1 Convertible (E88) – should be done with the engine switched off.
Carry out replacement in the following order:
- Step 1Secure the wheels with chocks.
- Step 2Loosen the wheel mounting bolts. Use wheel impact socket #17.
- Step 3Raise the rear of the car and secure on supports.Step 4Unscrew the wheel bolts.AUTODOC recommends:Important! Hold the wheel while unscrewing the fastening bolts. BMW 1 Convertible (E88)
- Step 5Remove the wheel.
- Step 6Clean all joints of the arm. Use a wire brush. Use WD-40 spray.Step 7Unscrew the fastener connecting the control arm to the rear knuckle. Use a drive socket #18. Use a tap wrench. Use a ratchet wrench.
- Step 8Remove the fastening bolt.Step 9Detach the suspension arm from the rear knuckle.
- Step 10Disconnect the ABS sensor wiring. Use a flat screwdriver.Step 11Unscrew the arm fastening to the beam. Use a combination spanner #18 (2 pieces).
- Step 12Remove the rear fastener of the control arm.Step 13Remove the rear upper arm.
- Step 14Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray.
- Step 15Mount the rear upper arm.Replacement: rear upper arm – BMW 1 Convertible (E88). AUTODOC experts recommend:During the installation process, use only new bolts and nuts.
- Step 16Install the rear fastener of the control arm.Step 17Tighten the arm fastening to the beam. Use a combination spanner #18 (2 pieces). Use a torque wrench. Tighten it to 100 Nm torque.AUTODOC recommends:Important! Be sure to use new fasteners.
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