Removal the engine (Mercedes-Benz S-Class W116)

It is recommended to remove the engine and gearbox together as a single power unit and then disconnect the engine from the gearbox. The following work is performed the same for all engine types. To avoid damage to the paintwork and dents, you can remove the hood. A sufficiently powerful lifting device is required to remove the engine. The engine and gearbox are quite heavy, so do not try to remove them manually.

To avoid damage, place protective covers on the car fenders.

Raise the hood to a vertical position. Release the locking lever on the left hood bracket and lift the hood up until the lever disengages. Then release the locking lever on the right hood bracket (Fig. 54).



Disconnect the negative cable from the battery.

Open the radiator cap. The coolant temperature should not be more than 90°C

Unscrew the plug at the bottom of the radiator and drain the coolant.

Disconnect the lines from the oil cooler and the transmission cooler and plug the holes in the lines to prevent oil leakage.

To facilitate draining the coolant, unscrew the plugs on the cylinder block.



Move the fan shroud onto the fan and remove the radiator together with the oil cooler.

Loosen the central mounting bolt and remove the fan.

In cars with air conditioning, remove the compressor and move it to the side along with the hoses.

In vehicles with adjustable wheel suspension, unscrew the four bolts securing the hydraulic suspension pump (see fig. 55) together with the connecting pipes, remove the pump and set it aside. Remove the pump drive parts.



Disconnect the fuel supply drive rod.

Suck the oil out of the power steering reservoir and disconnect the hoses from the power steering pump.

Disconnect all hoses and pipes of the cooling system, lubrication system, fuel system and wires between the vehicle body and the engine.

Disconnect the wires from the starter and generator.

Disconnect the exhaust pipe from the engine manifold and disconnect the pipe mount on the gearbox.

Remove the front engine mount bolts.

Disconnect the propeller shaft. If necessary, loosen the clamping nut and the intermediate support bearing mounting bolts. Move the propeller shaft back as far as it will go.



Disconnect the gearbox control rods and the reverse light switch wire.

Attach a lifting cable to the engine and place it on the hook of a crane or other lifting device. Pull the cable slightly taut.

Loosen the bolts securing the rear crossmember to the car body and the rear support to the crossmember and remove them.

Disconnect the clutch control hose from the pipeline and plug the hole in the hose and pipeline.

Carefully lift the engine, tilting it at an angle of approximately 45°. Remove the power unit from the engine compartment. Carry out the work of lifting the engine slowly, constantly monitoring, making sure that there are no wires or pipes left attached.