You will need: wrenches "10", "13", "14", "17", "19", "21", "22", "36" (or a special wrench for the crankshaft pulley fastening nut, if you don't have such a wrench, you can use a gas wrench), socket heads "12" and "13" (or a special wrench for the cylinder head fastening bolts), screwdriver, hammer, oil filter remover.

Replace hoses and pipes if they are damaged

Master cylinder (Fig. 1) with sequential piston arrangement

The cylinder head gasket is replaced if it is damaged

If the oil leak from under the cylinder head cover could not be eliminated by tightening the cover mounting nuts, replace its gasket

The VAZ-2123 car controller is usually located in the passenger compartment on the right side under the glove compartment