Before working on the lifter and lash adjuster, lubricate the tappets. Correctly use roller tappets in engines with MDS, as standard roller tappets are used for engine operations while deactivating tappets are fitted in cylinders 1, 4, 6 and 7. Set the tappets in their original slots and attach the tappet retainer, fastening it with a bolt that receives 12 Nm (106 in. lbs.) torque. Then, fix the cylinder head, the pushrods and the
Rocker Arm assembly, next install the cylinder head cover,
Intake Manifold and air cleaner. Then, connect the black cable to the battery. For the valves to be safe from harm, make sure the hydraulic tappets are filled with oil and silent before turning the engine fast. Drive the car on the road and scrutinize it carefully for any leaks.