Preparations for removing sub-frame screws
Cars with turbocharged engines: Remove the charge air pipe from the hose connector at the lower connection for the charge air cooler (CAC).
Heat the charge air pipe when removing it.
Install the tools
Position mobile jack 9985972 under the left-hand side of the sub-frame.
Install 2 screws 9995517 (bright) on the left hand-side, the front screw with a washer. Install 2 screws 9995518 (yellow) on the right-hand side.
Tighten the tools so that they are in contact. Then tighten the nuts on the tools.
Remove the 2 screws from the support bracket by the rear sub-frame screw.
Move the mobile jack to the right-hand side and repeat the procedure.