31 10 000 Removing and installing complete front axle (with spring struts) (M Coupe)
WARNING:
Danger of injury!
Failure to comply with the following instructions may result in the vehicle slipping off the lifting platform and critically injuring other persons.
When supporting components, make sure that:
Failure to comply with the following instructions may result in the vehicle slipping off the lifting platform and critically injuring other persons.
When supporting components, make sure that:
- the vehicle can no longer be raised or lowered
- the vehicle does not lift off the locating plates on the vehicle hoist.
IMPORTANT:
Before lowering/removing front axle support:
Observe SAFETY INFORMATION for raising the vehicle
In order to avoid damage to vehicle hoist, perform weight compensation on vehicle.
Observe SAFETY INFORMATION for raising the vehicle
In order to avoid damage to vehicle hoist, perform weight compensation on vehicle.
WARNING:
Secure engine in installation position with special tool to prevent it from falling down.
DANGER OF POISONING if oil is ingested/absorbed through the skin!
DANGER OF INJURY if oil comes into contact with eyes and skin!
DANGER OF POISONING if oil is ingested/absorbed through the skin!
DANGER OF INJURY 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.
Close off line connections with seal plugs.
Close off line connections with seal plugs.
Recycling:
Catch and dispose of hydraulic fluid in a suitable expansion tank.
Observe country-specific waste disposal regulations
Necessary preliminary tasks:
- Secure engine in installation position.
- Draw off and dispose off hydraulic fluid from oil reservoir.
- Disconnect BATTERY NEGATIVE LEAD .
- Remove UNDERBODY PROTECTION .
- Detach both brake hoses from the spring strut holder, remove and tie BRAKE CALIPER ON SWIVEL BEARING .
- Disconnect both plug connections for pulse sensor and expose cable up to holder on spring strut.
- Disconnect plug connection for brake pad wear sensor and expose cable up to holder on spring strut.
- Remove PRESSURE LINE AND RETURN LINE FROM HYDRAULIC STEERING GEAR .
- Remove LOWER SECTION OF STEERING SPINDLE FROM STEERING GEAR .
Disconnect plug connection (1) from ride height sensor.
Disconnect plug connection (2) for EH converter Servotronic.
Release screws on coolant pipe (1).
IMPORTANT:
Guide spring struts by hand when lowering and raising to prevent damage to the wheel arches!
After lowering, the spring struts must be aligned to the front axle support and fixed so that the ball joints of the wishbones, trailing links and track rod ends are not damaged!
After lowering, the spring struts must be aligned to the front axle support and fixed so that the ball joints of the wishbones, trailing links and track rod ends are not damaged!
Remove both SPRING STRUTS FROM SPRING STRUT DOME .
Lower FRONT AXLE SUPPORT .
After installation:
- FILL and bleed hydraulic system.
- Check hydraulic system for leaks.
- Carry out wheel alignment . See 32 00 150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION or 32 00 155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD if a spring strut support bearing without centring pin was or has been installed.