BMW 7_ая the E38 series from 1994 to 2002
1. Introduction
2. Governing bodies and operation receptions
3. Settings and routine maintenance of the car
4. Engine
5. Systems of cooling of the engine, heating, ventilation and air conditioning
6. A power supply system and production of the fulfilled gases
6.1. General information and security measures
6.2. Power supply system of petrol engines
6.3. Power supply system of diesel engines
6.4. Systems of release and decrease in toxicity of the fulfilled gases
7. Systems of electric equipment of the engine
8. Manual box of gear shifting and coupling
9. Automatic transmission
10. Kardanny and power shafts, reducer, differential and stupichny assemblies
11. Brake system
12. Suspension bracket and steering
13. Body
14. Onboard electric equipment
15. Electric equipment schemes


6-sistemy-pitaniya-i-vypuska-otrabotavshikh-gazov.html

6. A power supply system and production of the fulfilled gases

Specifications

Power supply system

Power supply system type
  • Petrol models
The distributed consecutive injection, under control of ECM
  • Diesel models
Direct injection, with the distributive highway («Common Rail») or with distributive TNVD, under control of ECM
Type of a control system of the engine
  • Diesel engines
DDE 2.1
  • M52
DME MS41.0 (Siemens Motronic MS41)
  • M60
DME Bosch Motronic (3.3)
  • M62
  • 35 8S 1
Bosch Motronic ME5.2
  • 35 8S 2 and 44 8S 2
Bosch Motronic ME7.2
  • M62
DME 5.1
  • M73
Bosch Motronic ME5.2
Type of fuel and volume of a fuel tank see. Specifications to Head of Control and routine maintenance of the car
Pressure on an exit of the fuel pump, atm
  • M51 engine
  • At turns X/x
0.1 ÷ 0.16
  • At 4800 rpm
0.06 ÷ 0.09
  • The minimum
- 0.1, for a long time-0.2 on 10с
  • The maximum
+0.4
  • Pressure at the built-in pump
0.2 ÷ 0.3
  • M57 engine
  • At turns X/x
2 ÷ 3.5
  • Pressure of return of fuel
no more than 0.5
  • M67 engine
  • At turns X/x
0.05 ÷ 0.4
  • Pressure of return of fuel
no more than 0.5
Resistance of the sensor of a stock of fuel, Ohm
  • At an empty tank (85 l//95 l)
65 ÷ 90//15 ÷ 40
  • At a full tank (left//right tank)
480 ÷ 494//470 ÷ 484
Working pressure of the fuel pump, atm
  • Diesel models
0.4
  • Petrol models
3.5
Current consumption by the fuel pump, And
  • Diesel models
no more than 6
  • Petrol models
not less than 9.5
Working pressure of the main fuel pump, atm
  • M57 engine
no more than 3.8
Current consumption by the fuel pump, And
  • M57 engine
no more than 11

TNVD, proof-reader of structure of a mix

Sensor of pressure of pressurization of the engine
  • Supply voltage, In
5 ÷ 0.25
  • Range of measurement of pressure, kPa
  • M51 engine
50 ÷ 250
  • Engines M57, M67
50 ÷ 240

M51 engine

Code designation of TNVD VP 15VE 6/10 E2400 R 515
Tension of turning on of the emergency valve, In not less than 10
Resistance of the emergency valve at 20°С, Ohm 7.5 ± 2
Maximum//the minimum pressure in TNVD (at 40 ÷ 60 °C), atm
  • At 700 rpm
6.5/4.5
  • At 4800 rpm
10/8 8
Pressure of opening of the perepuskny valve, atm not less than 3.5
TNVD given for static adjustment (at primary installation or a new driving chain), mm
  • Adjustment preset value in situation VMT
0.95 ± 0.03
  • Control value (chain service life more than 20000 km)
0.90 ÷ 0.78

Engines M57, M67

Code designation of TNVD (M57//M67) CP1//CP3.3
Pressure in TNVD to measurement does not give in
Pressure in the fuel distributive highway of "Common Rail" at frequency of rotation of a starter, atm not less than 250

Nozzles and M51 engine pipelines

Type of the case of a nozzle
  • The usual
KCA 21S71
  • With the sensor of lifting of a needle
KCA 21S76/1
Type of the case of a nozzle DNO SD 300
Pressure of the beginning of injection, atm
  • Adjustable size
150 ÷ 158
  • Minimum//maximum size
140/160
Maximum admissible difference of pressure of the beginning of lifting, atm 10
Thickness of an adjusting washer, mm 1.0 ÷ 2.0

System of release of OG

The maintenance of CO to / after the catalytic converter, %
Engines M52 B 28, M52TU 0.7 ± 0.5//0.5 ± 0.3
Engines M60/1, M60/2, M62 1.0 ± 0.5//no more than 0.5
M73 engine 0.4 ÷ 1.6/no more than 0.5

Efforts of a tightening of carving connections, Nanometer

Turbokompressor fixture to a final collector 50
Hollow bolt of fastening of a tube of a supply of oil to a turbokompressor and a block/head of cylinders 25
Collars of fastening of hoses of nadduvochny air 6
Carving stopper in GRM cover
  • M20x1.5 and M40x1.5 carving
30
  • M30x1 carving
70
Fixture of assembly of nozzles (M51 engine) 80
Cap nuts of fastening of the fuel line to TNVD and assembly of nozzles (M51 engine) 20
Nozzle (to a cover of a head of the block of cylinders) – M57//M67 engines 9/30
The pressure sensor to the fuel distributive highway 38
Pressure regulator to TNVD 9
The valve of adjustment of pressure to the fuel distributor 5
Pressure regulator to the fuel distributive highway 80
Hollow bolt of fastening of the returnable line to the fuel distributive highway 25
Fixture of an asterisk of TNVD of M51//M57 and M67 engines 50/65
Fixture of a natyazhitel of a chain of a drive of TNVD of the M51 engine 15
Valve of an otsechka of fuel 20
The Verkhnepotochny catalytic converter to a turbokompressor
  • M57 engine
42
  • M67 engine
15
Collar of the back additional exhaust silencer 15
Electroconducting fixture to the electronic catalytic converter 5
Fixture of the sensor of a stock of fuel to the soaking-up device 2
Fixture of assembly of the fuel pump to a fuel tank 6.5
Turbokompressor fixture to a final collector 50
Hollow bolt of fastening of a submitting oil tube to a turbokompressor and the block of cylinders 25
Collars of fastening of hoses of nadduvochny air 6


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6.1. General information and security measures









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