BMW 3 series E46

1 Condition of check is the charged storage battery.
2 Switch off ignition.
3 Rasstykujte the main relay of an electronic control system of the engine to exclude injection of fuel during check. The arrangement of the relay of a control system is shown in Specifications of the Head the Onboard electric equipment.

If the relay of a control system is not disconnected by the engine, the target step of the main relay of a control system can be damaged.

4 Remove all spark plugs, address to Section Check of levels of liquids.

5 Models 316i, 318i: Расстыкуйте a multipolar socket of coils of ignition for what turn to the left the handle-1.

6 Establish manual a check point in neutral position, automatic in position “Р”. Tighten a lay brake.

Be not declined over the engine if it is turned at the removed spark plugs. There is a danger травмирования owing to particles of soot thrown out thus!

7 Insert or screw компрессометр in a spark plug aperture according to the maintenance instruction.
8 Ask the assistant to press completely a pedal of gas and to keep it in such position during all time of check.
9 Turn the engine approximately on 8 turns so that pressure growth on компрессометре has stopped.
10 Thus, consistently check up all cylinders.
11 If the compression in one or several cylinders lies below a deterioration limit, pour in a little impellent oil through an aperture of a spark plug and again measure pressure компрессометром. If after that pressure increases, it specifies in deterioration of piston rings and-or a working surface of the cylinder. If pressure does not raise, the valve or a sealing lining of a head of cylinders, as a rule, is damaged
12 Establish spark plugs, address to Section Check of levels of liquids.
13 Models 316i, 318i: Join the multipolar I will corrode ignition coils, thus turn the handle to the right.
14 Establish the main relay of a control system of the engine, address to Specifications of the Head the Onboard electric equipment.