Front Subframe: Service and Repair

Front Subframe
This is a "Trustmark Authoring Standards (TAS) Repair Procedure"
- TAS style procedures can be identified by steps that have no accompanying step text and the magenta color of the electrical connectors and fasteners such as nuts, bolts, clamps or clips.
- TAS removal and installation procedures use a sequence of color illustrations to indicate the order to be followed when removing/disassembling or installing/assembling a component.
- Many of the TAS procedures will have the installation information within the removal steps.
- The TAS color illustrations use a variety of symbols to indicate important details of the procedures. It is important to understand these symbols in order to properly used the TAS procedures.
Refer to How to Use TAS Procedures and TAS Symbol Glossary at Vehicle | Description and Operation for additional information on these TAS procedures.
For additional information, refer to How to Use TAS Procedures How to Use TAS Procedures
For additional information, refer to TAS Symbol Glossary TAS Symbols Glossary
Removal

NOTE:
Some variation in the illustrations may occur, but the essential information is always correct.
For additional information, refer to Battery Disconnect and Connect Battery Disconnect and Connect

WARNING: Make sure to support the vehicle with axle stands.
1 Raise and support the vehicle.
2 Remove both the front wheels and tires.
For additional information, refer to Wheel and Tire Service and Repair
For additional information, refer to Radiator Splash Shield Radiator Splash Shield
For additional information, refer to Air Deflector Service and Repair
For additional information, refer to Engine Cover - 5.0L Service and Repair

3 Secure the radiator assembly.

WARNING: Make sure to support the vehicle with axle stands.
4 Raise and support the vehicle.

NOTE:
LH illustration shown, RH is similar.

5 Lower the vehicle.

CAUTION: Make sure to protect the paintwork.
6 Support the engine with the lifting equipment.
Special Service Tool

Engine Lifting Brackets Rear, 303-1435

Special Service Tool

Engine support bracket, 303-021

WARNING: Make sure to support the vehicle with axle stands.
7 Raise and support the vehicle.

NOTE:
Note the fitted position of each bolt, mark the washers and sub-frame before removal to aid assembly.

E70 - Powertrain Jack

NOTE:
This step requires the aid of another technician.

NOTE:
Do not disassemble further if the component is removed for access only.

NOTE:
LH illustration shown, RH is similar.

Installation

Torque to: 55 Nm

NOTE:
LH illustration shown, RH is similar.

Torque to: 20 Nm

E70 - Powertrain Jack

1 Install the special tool to the front subframe.
Special Service Tool

Alignment Bolts, Subframe, 502-005

2 Install the special tool to the front subframe.
Special Service Tool

Alignment Bolts, Subframe, 502-005

Step 1: 80 Nm

Step 2: 240 degree

3 Remove the special tool.
Special Service Tool

Alignment Bolts, Subframe, 502-005

4 Remove the special tool.
Special Service Tool

Alignment Bolts, Subframe, 502-005

Step 1: 100 Nm

Step 2: 270 degree
5 Lower the vehicle.

CAUTION: Make sure to protect the paintwork.
6 Remove the special tool supporting the engine.
Special Service Tool

Engine Lifting Brackets Rear, 303-1435

Special Service Tool

Engine support bracket, 303-021

M6: 9 Nm
M10: 40 Nm

WARNING: Make sure to support the vehicle with axle stands.
7 Raise and support the vehicle.

CAUTION: Make sure each bolt aligns with the removal markings.

Torque to: 175 Nm

Torque to: 43 Nm

Torque to: 5 Nm

Torque to: 100 Nm

Torque to: 45 Nm

NOTE:
LH illustration shown, RH is similar.

8 Release the radiator assembly.
For additional information, refer to Engine Cover - 5.0L Service and Repair
For additional information, refer to Air Deflector Service and Repair
For additional information, refer to Radiator Splash Shield Radiator Splash Shield
9 Install both the front wheels and tires.
For additional information, refer to Wheel and Tire Service and Repair
For additional information, refer to Battery Disconnect and Connect Battery Disconnect and Connect
For additional information, refer to Camber and Caster Adjustment Camber and Caster Adjustment