I 1. Subframe; 2/8. Bolt. 9 Nm; 3/5/9/10. Bolt. 20 Nm; 4/6/7/11. The subframe shield is installed depending on the engine model; 12/15/20. Bolt; 13. Engine bracket mounting plate; 14. Engine mount; 16. Square nut. Replace each time it is removed; 17/19. Bolt. 115 Nm + 90° further. Replace each time when removed; 18. Mounting pin. Can be replaced if damaged; 21. Bolt. 90 Nm + turn 90°. Replace each time when removed; 22. Subframe cross brace connection. Risk of damage to chassis components. Never lower the vehicle onto its wheels unless the subframe support, steering gear or subframe cross brace connection is properly installed. Supporting the vehicle on the subframe or subframe cross brace connection (for example, when using a trolley jack, etc.) not allowed!; 23. Shock absorber fork; 24/26. Bolt. 40 Nm + 90° further. Replace each time when removing. Tighten only when the vehicle is in a no-load position; 25. Connecting rod. Consider different designs: aluminum and steel. Simultaneous installation of 2 racks of different types is not allowed; 27. Nut. 25 Nm. Replace each time it is removed. Tighten only when the vehicle is under no load; 28. Clamp; 29. Rubber cushion. The hole of the block's "belts" should face the subframe during installation. The stabilizer and rubber cushion should be degreased during installation; 30. Stabilizer; 31. Nut. Replace each time it is removed
Removal the subframe
Remove the wheels. Remove the sound insulation. Remove the wheel arch liners on the left and right. Remove the cross-connection of the stretchers. If available, remove the subframe shield on the left and right. Remove the stabilizer.
Applies to vehicles with hydraulic steering gear: Remove the steering gear.
Applies to vehicles with electro-mechanical steering gear: Remove the steering gear.
All
If there is a ground clearance sensor, remove it. Tie the hub bearing housing on the left and right using the tension belt "T10038" to the support bracket, as shown in the figure. Remove the suspension arms on the left and right. Secure the engine assembly using a crossmember.
On the left and right, unscrew the bolts "1" and nuts "3" and remove the longitudinal stretchers "2".
Disconnect bolt connection "1". Tilt the guide lever and secure it to the body with wire or similar material.
On vehicles with electrohydraulic engine suspension, disconnect the plug connector "arrow" of the left electrohydraulic engine mount "N144" and the right electrohydraulic engine mount "N145". Depending on the installed engine, unscrew the nut "2" of the bracket of the electrical wires on the right side of the vehicle.
Applies to vehicles with hydraulic steering: Unscrew the power steering line bracket bolt "arrow".
Remove bolts "1 and 5" of the left and right engine mounts. Move the mounting plate "2" of the left and right engine mounts to the side.
Before lowering the subframe, check whether all electrical wire connections are disconnected or removed. Mark the installation position of the subframe from "A" to "D", for example, with a felt-tip pen. Unscrew bolts from "1" to "8" and remove the subframe.
Installation
Installation in the reverse order. In this case, it is necessary to take into account the tightening torques. The procedure for tightening the threaded fasteners of the subframe: Install the subframe and align it with the previously made marks "A" and "B", tighten bolts "2" and "3" only to the prescribed torque. Press the subframe to the marks "C" or "D", tighten bolts "5" and "8" to the prescribed torque. Screw in bolts "4", "6" and "7" and tighten them to the prescribed torque. Tighten bolts from "1" to "8" by the prescribed angle. The "belts" of the blocks have a limited working range of twisting. Therefore, the bolted connections of the wheel suspension should be tightened only when the car is in the unloaded position or the standard position of the suspension. Raise the wheel support with the static position of the suspension on a car with coil springs. For cars with an automatic transmission, perform the basic setting of the headlights. After removing and installing the vehicle level sensor or loosening the tie rods on vehicles with electronic damping control, the suspension must be re-adjusted to the standard position. After re-adapting the adjustment position on vehicles with lane assist, the lane assist control unit "J759" must be recalibrated. Tighten the wheel. The wheel alignment must be adjusted.
(The original article is posted on the resource audimanual)