Model 316i, 318i (engine M43TU)
Withdrawal
1. Disconnect the negative cable (-) battery with the ignition off. The battery is located in the luggage compartment behind the cover on the right side. For BMW 316i, 318i, the battery is located in the engine compartment.
Disconnecting the battery clears the fault memory of some controls. If necessary, read the fault memory before disconnecting the battery. Refer to Section Troubleshooting. It is desirable to carry out work in the conditions of a service station.
2. Remove the air collection box, refer to Section Removal and installation of the air intake box.
3. Disconnect the gas drive at the throttle valve, refer to Section Removal, installation and adjustment of the throttle actuator.
4. Remove the air hose between the air filter box and the throttle valve outlet by loosening the clamp.
5. Turn away bolts of fastening of the top part of the inlet pipeline at a forward support, and also at a back support (arrows in the illustration).
6. Disconnect the vacuum hose -1-.
7. Disconnect a vacuum hose to the inlet pipeline at the amplifier of a brake. This will require some effort.
8. Turn away bolts of fastening and remove the top part of the inlet pipeline.
9. Drain the coolant, refer to Section Coolant replacement.
10. Disconnect the coolant hose at the bottom of the intake manifold by loosening the clamp (arrow illustration).
11. Disconnect the oil gauge guide tube at the bottom of the intake manifold (arrow illustration).
12. Open the cable duct at the motor. Disconnect the electrical wires from the following items. Mark the connections with tape so as not to confuse them during assembly:
- injectors;
- generator, refer to Section Removal and installation of the generator;
- knock sensor on the cylinder block;
- coolant temperature sensor;
- starter, refer to Section Removal and installation, starter check;
- oil level sensor;
- crankshaft position sensor;
- oil pressure sensor.
The fuel system of the engine is under pressure! Place a thick cloth over the hose connections before opening them. Then, carefully disconnect the hose to relieve the pressure. There is a risk of fire, do not smoke!
13. Disconnect the supply and return fuel hoses (arrows in the illustration).
14. Turn away bolts of fastening and disconnect a support of the inlet pipeline (arrows in the illustration).
15. Turn away bolts of fastening and disconnect the bottom part of the inlet pipeline at a head of cylinders.
Installation
1. Replace all o-rings.
2. Evenly crosswise tighten the bolts securing the lower part of the inlet pipeline to the cylinder head with the forces given in the Specifications.
Bolt the intake manifold support.
3. Secure the fuel supply and return lines.
The return pipe clamp must be replaced during installation. Secure the supply pipeline with a torque of 20 Nm.
4. Attach electrical wires to the following items:
- injectors;
- generator, refer to Section Removal and installation of the generator;
- knock sensor at the cylinder block;
- coolant temperature sensor;
- starter, refer to Section Removal and installation, starter check;
- oil level sensor;
- crankshaft position sensor;
- oil pressure gauge.
5. Attach the cable duct to the motor.
6. Attach the oil level gauge guide tube.
7. Put the coolant hose on the bottom of the intake manifold and secure with a clamp.
8. Fix the top part of the inlet pipeline.
9. Put a vacuum hose to the inlet pipeline on the amplifier of a brake.
10. Attach the upper part of the inlet pipeline to the front support, as well as to the rear support. Put on the vacuum hose -1-.
11. Insert the air hose between the air filter box and the throttle body and secure with clamps.
12. Connect the gas drive at the throttle valve, refer to Section Removal, installation and adjustment of the throttle actuator.
13. Reinstall the air collection box, refer to Section Removal and installation of the air intake box.
14. Connect the negative cable (-) battery with the ignition off. Set the clock.
Models 320i, 323i, 328i (M52TU engine)
Withdrawal
1. Disconnect the negative cable (-) battery with the ignition off. The battery is located in the luggage compartment behind the cover on the right side. For BMW 316i, 318i, the battery is located in the engine compartment.
Disconnecting the battery clears the fault memory of some controls. If necessary, read the fault memory before disconnecting the battery. Refer to Section Troubleshooting. It is desirable to carry out work in the conditions of a service station.
2. Remove the air collection box, refer to Section Removal and installation of the air intake box.
3. Disconnect the gas drive at the throttle valve, refer to Section Removal, installation and adjustment of the throttle actuator.
4. Remove the air hose between the air filter box and the throttle body by loosening the clamp.
5. Disconnect the connector of the idle speed injector and the resonant damper at the throttle valve branch pipe.
6. Turn away bolts of fastening and remove a cable shaft under a branch pipe of a butterfly valve.
7. Disconnect the oil drain hose from the guide tube of the oil level indicator, after loosening the clamp.
8. Turn away a directing pipe of the indicator of level of oil at the inlet pipeline.
9. Turn away bolts of fastening (arrows in the illustration) and remove the throttle body with seal.
10. Remove the oil fill cap. Pry off the small covers with a screwdriver (arrows in the illustration) and remove. Loosen the bolts underneath. Remove 2 plastic facings.
11. Remove the plug connections of the oxygen sensors (arrows in the illustration). Disconnect the VANOS solenoid valve connector.
12. Lift and move aside the plug-in strip of the injectors.
13. Remove the electrical wires from the side trim at the water tank. To do this, lift up the rubber strip -1-. Turn the clips -2- of the side trim 1/4 turn and remove. Pull up the side trim.
14. Disconnect the crankcase ventilation pipe. At the same time, compress the connection (two arrows on the left).
The fuel system of the engine is under pressure! Apply a thick layer of cloth to the hose connections before opening them. Then, carefully disconnect the hose to relieve the pressure. There is a risk of fire, do not smoke!
15. First, disconnect the fuel supply pipe -1-. Then disconnect the fuel return line -2- at the distribution line by loosening the clamps. After removal, the clamps must be replaced.
On some models, the supply line is connected directly to the distribution line. In this case, the sealing ring must be replaced during installation and lubricated with technical vaseline. Fuel hoses can also be attached with brackets. In this case, the special tool BMW-16 1 050 is required to unscrew the brackets. Check the sealing ring before installation. Replace if damaged, refer to Section Removal and installation of injectors.
16. Disconnect a support at the inlet pipeline.
17. Check up, that on the inlet pipeline all hoses have been disconnected.
18. Turn away bolts of fastening and remove the inlet pipeline from a head of cylinders (arrows in the illustration). Caution: Be careful not to get any parts into the inlet cavities.
Installation
1. Reinstall the intake manifold at the cylinder head and secure it evenly with the cross bolts. Before installation, check all sealing rings, replace damaged ones.
2. Attach the intake manifold support.
3. Attach the oil level gauge guide tube to the intake manifold.
4. Attach the oil return hose to the level gauge guide tube and secure it with a clamp.
5. Install the throttle body with a new O-ring.
6. Dock the connector of the idle speed injector and the resonant damper of the throttle valve branch pipe.
7. Fix the cable duct under the throttle valve.
8. Fix the gas drive to the throttle valve branch pipe and adjust it, refer to Section Removal, installation and adjustment of the throttle actuator.
9. Fix new collars submitting and returnable fuel lines of a distributive highway. Install new O-rings, refer to subsection "Withdrawal".
10. Secure the crankcase ventilation connection.
11. Connect the connector of the oxygen sensors and the VANOS solenoid valve.
12. Put on the plug-in strip of the injectors.
13. Plug in the connector at the water collection area. Turn the clips -1- of the side trim 1/4 turn and lock.
14. Attach the two mounting covers. Install the mounting bolt covers.
15. Screw the cap onto the oil fill port.
16. Install the air collector box, refer to Section Removal and installation of the air intake box.
17. Connect the negative cable (-) battery with the ignition off. Set the clock.
Model 320d (M47 engine)
Withdrawal
1. Disconnect the negative cable (-) battery with the ignition off. The battery is located in the luggage compartment behind the cover on the right side.
Disconnecting the battery clears the fault memory of some controls. If necessary, read the fault memory before disconnecting the battery. Refer to Section Troubleshooting. It is desirable to carry out work in the conditions of a service station.
2. Remove the air collection box, refer to Section Removal and installation of the air intake box.
3. Turn away bolts of fastening -1- and remove facing of the engine -2-.
4. Disconnect the suction line at the EGR valve (exhaust gas recirculation), why loosen the clamp (arrow illustration).
5. Turn away bolts of fastening -1- and remove an engine cover.
6 Disconnect the hoses from the holders in the area of the oil level indicator.
7. Disconnect the electrical wires from the side trim at the water tank. Pull up the rubber strip -1-. Turn the clips -2- of the side trim 1/4 turn and remove upwards.
8. Turn away bolts of fastening (arrows in the illustration) and remove the cover on the left side of the engine.
9. Turn away four bolts of valve EGR on the inlet pipeline (arrows in the illustration).
10 Remove the intake manifold rear bolt. The illustration shows a socket wrench with a ratchet on the rear bolt.
11. Take out covers between channels of the inlet pipeline.
12. Turn away bolts -1 - and nuts -2 - at the inlet pipeline.
Installation
1. Replace all o-rings.
2. Bolt the intake manifold evenly and crosswise to the cylinder head.
3. Further installation is carried out in the reverse order of removal.
4. Install the air collection box, refer to Section Removal and installation of the air intake box.
5. Connect the negative cable (-) battery with the ignition off. Set the clock.