BMW 3 Series E46

since 1998 release

Repair and operation of the car



BMW 3 Series E46
+ BMW 3 cars (E46)
+ Current leaving and service
+ Engine
+ Cooling systems, heating
- Power supply systems, injection and release
   Security measures and rules of respect for purity during the work with fuel system
   Removal and installation of the sensor of a reserve of fuel / fuel pump
   Check of the sensor of a reserve of fuel
   + Power supply system of petrol engines
   + System of injection of fuel of the petrol engine
   + Power supply system of diesel engines
   + System of production of the fulfilled gases
+ Engine electric equipment
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment





Power supply systems, injection and release

Specifications

Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type


Fuel

Petrol engines

316i

unleaded, is not worse than AI 95

318i

unleaded, is not worse than AI 95

318i

unleaded, is not worse than AI 983)

323i

unleaded, is not worse than AI 983)

328i

unleaded, is not worse than AI 983)

330i

unleaded, is not worse than AI 983)

M3

unleaded, is not worse than AI 983)

3) Filling with AI 95 gasoline with insignificant deceleration of power of the engine is possible. AI 91 can be applied only in exceptional cases.

Diesel engines

Diesel fuel on DIN EN 590

Cetane number of not less than 49

Do not use biodiesel fuel (methyl air of rape oil)

The cetane number characterizes ability of diesel fuel to spontaneous ignition.

Operation in winter conditions

winter diesel fuel which depending on its brand ensures trouble-free operation of the engine at a temperature up to -15 °C or to -22 °C.

Heating of the fuel filter

The car is equipped with the device of heating of the fuel filter. Thanks to it it is possible to use the fuel calculated on its application at a temperature up to -15 °C at a temperature approximately to -25 °C.

If at air temperature below -25 °C fuel became so dense that the engine is not started, some time in the warmed room is enough to allow to the car to stand.

To diesel fuel it is not necessary to mix various additives increasing its fluidity.

At temperature drop of external air below -9 °C to summer diesel fuel can be added kerosene (to % of total volume)

From-9 to -15 °C

10%

From-15 to -25 °C

30%

It is below -25 °C

50%

At temperature drop of external air below -20 °C to winter diesel fuel add means of reduction of viscosity or kerosene (to % of total volume)

From-20 to -26 °C

10%

From-26 to -31 °C

30%

It is below -31 °C

50%

Capacity of the fuel tank

Volume

63 l

including reserve stock

8 l

Control system of the engine

316i

BMS 46

318i

BMS 46

318i

Siemens MS 42.0

323i

Siemens MS 42.0

328i

Siemens MS 42.0

320d

DDE Bosch 3.0

330d

DDE Bosch 3.0

BMS - a control system of the BMW engine.

MS - a control system of the engine (Motronic).

DDE - a digital control system of the diesel engine.

Efforts of tightening of threaded connections

The moments of an inhaling of fixture are given in the text of the Head and on some illyustratsiyakh*.

* The moments of an inhaling highlighted in the text in bold type are subject to exact observance; the efforts which are not highlighted in bold type are given only approximately

System of production of the fulfilled gases

Reception pipe to a final collector

30 N • m

Fastening to a triangular flange

20 N • m

Collar of the additional muffler

15 N • m

The holder of the muffler to RKPP, M8 carving

20 N • m

Fastening levels to the bottom

20 N • m

Final collector

Models 316i, 318i, 320d

M6

10 N • m

M7

15 N • m

Models 320i, 323i, 328i

M6

10 N • m

M7

20 N • m


The fuel system consists of the fuel tank, fuel-supply lines, the filter, the fuel pump and system of injection of fuel.

The fuel tank has two cameras. The tank is located under back seats. The available reserve of fuel is shown to the driver on the dashboard. And the fuel reserve for each camera is measured by the separate sensor. The microprocessor in the block of the dashboard counts the current content of fuel on the basis of impulses of injection, speed of the movement and electric signals of the lever sensor.

Ventilation of the fuel tank is carried out through the closed system of removal of air. At the petrol engine harmful vapors of gasoline gather in an adsorber and move under control in the engine.

Methods of economic operation of the car

Style of driving of the car has significant effect on fuel consumption. Several councils for reasonable operation of the car are given below:

- After start of the engine at once start even if it occurs on a frost.
- At a car stop lasting more than 40 with switch off the engine.
- Move always on the highest transfer.
- At the movement on long distances whenever possible support uniform speed. Avoid the movement at high speeds. Drive the car circumspectly. Without need you do not brake.
- You do not transport excess freight on the car. For example, on a roof whenever possible remove the luggage carrier installed on the car.
- Check air pressure in tires. Do not allow excessive pressure decrease.








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