Removing Front Axle
- Electric shock
- Short circuit
- Fire
- Explosion
- Only appropriately trained and authorised persons are permitted to work on high-voltage vehicles and components.
- Required qualification: High voltage technician or high voltage expert.
- Observe national requirements and legislation for this work.
- Always use insulated tools, e.g. > VAS 6883 - Insulated Tool Set when working on these components. Observe general warning notes for working on the high-voltage system.
- > 2X00IN GENERAL WARNING NOTES FOR WORKING ON THE HIGH-VOLTAGE SYSTEM
- Risk of squashing or crushing
- Secure components to prevent them from falling down.
- Risk of squashing
- Wear personal protective gear.
- Get someone to help if necessary.
Information
Front air-spring strut
- Install stored air-spring struts within one year .
- Do not set the air-spring strut down on/against the control valves connectors, air connection or screw dome .
- Only transport air-spring struts -1- by hand at the cover -2- and shock absorber fork -3- .
Information
- Do not move air-spring strut when empty!
- Do not release any air!
Information
The procedure for removing and installing is described for one side as an example. The procedure for the other side is almost identical.
Information
The pictures shown in this document may differ from the original.
- Detach holder -1-
with coolant pump (P5) -2-
from front axle.
Holder with coolant pump (P5)
- 1.1 Remove screws -3- .
- 1.2 Move aside holder -1- with coolant pump (P5) -2- .
- Detach holder -1-
with coolant pump (P1) -2-
from front axle.
Holder with coolant pump (P1)
- 2.1 Remove screws -3- .
- 2.2 Move aside holder -1- with coolant pump (P1) -2- .
- Detach directional-control valve -1-
from directional-control valve holder -2-
.
Directional-control valve
- 3.1 Remove screws -3- .
- 3.2 Move directional-control valve -1- aside.
- Remove directional-control valve holder -1-
.
Directional-control valve holder
- 4.1 Remove screws -2- .
- 4.2 Remove directional-control valve holder -1- .
- Loosen wire harness holder -1- .
- Loosen upper trailing arm -1-
from wheel bearing housing -2-
.
Upper trailing arms on wheel bearing housing
- 6.1 Unscrew nut -3- and counter at screw -4- at the same time.
- 6.2 Loosen upper trailing arms -1- from wheel bearing housing -2- .
- Release and disconnect cable plug -1-
, then remove from the holder -2-
.
Cable plug for front spring strut
- Only for vehicles with air suspension system:
Disconnect electric lines -1- from air-spring strut -2- .
- 8.1 Release and pull off cable plug -3- .
- 8.2
Pull the electrical line -1-
out of the holder -4-
.
Air-spring strut cable plug
CAUTION: Escaping residual air- Risk of eye injuries
- Wear protective goggles.
Information
- Disconnect air lines only at the connection for the air spring .
- There is a pressure retaining valve only on the front axle .
- Observe specified tightening torque for the Voss threaded joint .
Information
The cutting ring -1- and Voss threaded joint -2- must remain on the air line -3- .
Air line
- Only for vehicles with air suspension system:
Disconnect air line -1- from the air-spring strut -2- .
- Detach spring strut -1-
from the spring-strut dome.
Spring strut to spring strut dome
- 10.1 Unscrew nuts -2- .
- Detach holder -1-
with coolant pump (P2) -2-
from front axle.
Holder with coolant pump (P2)
- 11.1 Remove screw -3- .
- 11.2 Unclip coolant hoses -4- from holder -5- .
- 11.3 Remove screws -6- .
- 11.4 Move aside holder -1- with coolant pump (P2) -2- .
- Detach electrical line from 12 V HV battery -1-
.
Electrical line on 12 V HV battery
- 12.1 Release and disconnect cable plugs from 12 V HV battery -2- .
- 12.2
Suspend electric line for 12 V HV battery -1-
at the side.
Information
Replace damaged clips.
- Disconnect electric wire harness for power-steering gear -1-
from front axle.
Electric wire harness for power-steering gear
- 13.1 Release and disconnect cable plug on power-steering gear -2- .
- 13.2 Unclip clips -3- .
- 13.3 Release and disconnect cable plug for HV battery temperature -4- .
- 13.4 Unclip clips -5 and 6- .
- 13.5 Guide electric wire harness for power-steering gear -1- out of front axle and place to one side.
- Disconnect coolant hose from HV battery -1-
.
Coolant hose on HV battery
- 14.1 Release and pull off plug-in coupling -2- .
- 14.2 Catch escaping coolant and close offline connections using suitable stoppers.
- 14.3 Remove screw -3- .
- 14.4 Unclip holder for HV battery coolant hose -4- .
- 14.5 Guide the HV battery coolant hose -1- out of the front axle and set aside.
- Loosen universal joint for steering column -1-
.
Universal joint for steering column (shown on the Taycan S)
- 15.1 Unscrew screw -2- .
- 15.2 Pull universal joint for steering column -1- off the power-steering gear -3- .
- Detach power-steering gear -1- .
- Disconnect electrical line -2-
from the air-conditioning compressor -1-
.
Electric line on air-conditioning compressor
- 17.1 Unclip clips -3- .
- 17.2 Release and pull off cable plug -4- .
- 17.3 Unscrew screw -5- and remove equipotential bonding line -6- .
- Detach air-conditioning compressor -1-
from front axle, making sure not to open the refrigerant lines.
Air-conditioning compressor
- 18.1 Unscrew nuts -2- and counter at the screws -3- at the same time.
- Support air-conditioning compressor -1-
using mounting lever HAZET 650-20 -2-
.
Mounting lever HAZET 650-20
Information
- The help of another person is required for this step .
- While lowering, get another person to check that the components have adequate clearance .
- Remove front axle -1-
.
Front axle (shown on the Taycan S)
- 20.1 Place > VAS 6832/8 - universal assembly device as described under Tool information and secure on the > VAS 6832 - Master Gear unit elevating platform .
- 20.2 Position > VAS 6832 - Master Gear unit elevating platform under the front-axle carrier -1- and carefully fit > VAS 6832/8 - universal assembly device .
- 20.3
Secure wheel hub holder -1-
to the wheel hub on both sides using assembly pins/wheel bolt -2-
.
Wheel hub holder (similar to illustration)
- 20.4 Mark position of the front axle on the body.
- 20.5 Unscrew screws -2 to 4- .
- 20.6 Carefully lower the front axle -1- on > VAS 6832 - Master Gear unit elevating platform and get another person to help guide it down.