Removing and Installing Complete Front Axle (With Spring Strut Shock Absorber)
31 10 000 - Removing and installing complete front axle (with spring strut shock absorber)
Warning!
Danger to life!
Secure engine in installation position Securing Engine in Installation Position to prevent it from falling down.
Danger of poisoning 00 .. ... Danger of Poisoning If Oil Is Ingested/Absorbed Through the Skin if oil is ingested/absorbed through the skin!
Risk of injury 00 .. ... Risk of Injury If Oil Comes Into Contact With Eyes and Skin if oil comes into contact with eyes and skin!
Important!
Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Seal off hydraulic lines with plugs.
Necessary preliminary tasks:
- Disconnect battery negative lead Disconnecting and Connecting Battery Negative Lead
- Draw off and dispose off hydraulic fluid from fluid reservoir
- Secure engine in installation position Securing Engine in Installation Position
- Remove front wheels Removing or Installing Front or Rear Wheel
- Disconnect plug connection of both pulse generators Replacing One Front Pulse Generator
- Remove both brake calipers from swivel bearing Removing and Installing/Replacing Left or Right Front Brake Caliper and tie up
- Remove reinforcement plate Service and Repair
- If necessary, remove steering gear cover on both sides
- Remove wheel suspension cover on both sides
- Remove lower steering spindle from power steering gear Removing and Installing/Replacing Lower Section of Steering Spindle
- If necessary, disconnect plug connection on EH converter and expose line up to engine carrier
- If necessary, disconnect plug connection on ride-height sensor and expose line up to engine carrier
- If necessary, expose and disconnect vacuum line for engine mount up to point of separation on engine support arm
- Except M5, M6: Disconnect pressure line(s) from vane pump
- M5, M6: Disconnect pressure line from power steering gear
- Disconnect return line from power steering cooler Notes on Hydraulic Line with Quick-Connect Coupling
- Remove both stabilizer links from spring strut bracket Removing and Installing/Replacing Push Rod (Stabilizer Link) for Left/Right Stabilizer
Important!
- Check sensor head and line from pulse generator prior to installation for external damage, replacing if necessary.
Version with Dynamic Drive:
Remove bottom right wheel arch trim Removing and Installing/Replacing Front Bottom Right Wheel Arch Trim.
Release nuts (1, 2).
Tightening torque (1): 32 41 3AZ. Pump and Oil Supply
Tightening torque (2): 37 14 13AZ. Electric Components
Version with active steering:
Disconnect plug connections (1, 2).
Expose wiring harness (3) up to front axle carrier.
Important!
Guide spring struts with your hand when lowering and raising in order to avoid damaging the wheel arches.
After lowering, the spring struts must be aligned to the front axle carrier and secured in such a way that the ball joints of the control arms, tension struts and tie rod ends are not damaged.
Remove both spring struts from spring strut dome Removing and Installing Complete Left or Right Spring Strut Shock Absorber.
Support front axle carrier Lowering / Raising Front Axle Carrier, release from engine carrier and carefully lower with spring struts.
After installation:
- Fill and bleed hydraulic system
- Check pipe connections for leaks
- Carry out wheel alignment check if a spring strut with support bearing was or has been installed without centering pin.
- Carry out steering angle sensor adjustment/adjustment for active steering
- If necessary, carry out initial Dynamic Drive operation Initial Inspection and Diagnostic Overview