BMW 7_aya the E38 series from 1994 to 2002
1. Introduction
2. Governing bodies and methods of operation
3. Settings and routine maintenance of the car
4. Engine
5. Cooling systems 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. Cardan and power shafts, reducer, differential and stupichny assemblies
11. Brake system
12. Suspension bracket and steering
13. Body
14. Onboard electric equipment
15. Schemes of electric equipment



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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 the fuel tank see Specifications to the Head Nastroyki and routine maintenance of the car
Pressure at the exit of the fuel pump, atm
  • M51 engine
  • At H/H turns
0.1 ÷ 0.16
  • At 4800 rpm
0.06 ÷ 0.09
  • Minimum
- 0.1, it is long-0.2 on 10s
  • Maximum
+0.4
  • Pressure at the built-in pump
0.2 ÷ 0.3
  • M57 engine
  • At H/H turns
2 ÷ 3.5
  • Fuel return pressure
no more than 0.5
  • M67 engine
  • At H/H turns
0.05 ÷ 0.4
  • Fuel return pressure
no more than 0.5
Resistance of the sensor of a reserve 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
Consumption of current 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
Consumption of current fuel pump, And
  • M57 engine
no more than 11

TNVD, proofreader of composition of 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
  • M57, M67 engines
50 ÷ 240

M51 engine

Code designation 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 °C, 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
10/88
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
  • Preset value of adjustment in the provision of VMT
0.95 ± 0.03
  • Control value (chain service life more than 20000 km)
0.90 ÷ 0.78

M57, M67 engines

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

Nozzles and pipelines of the M51 engine

Nozzle case type
  • Usual
KCA 21S71
  • With the sensor of raising of a needle
KCA 21S76/1
Nozzle case type 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 rise, 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, %
M52 B 28, M52TU engines 0.7 ± 0.5//0.5 ± 0.3
M60/1, M60/2, M62 engines 1.0 ± 0.5//no more 0.5
M73 engine 0.4 ÷ 1.6/no more than 0.5

Efforts of tightening of threaded connections, Nanometer

Turbocompressor fixture to a final collector 50
Hollow bolt of fastening of a tube of a supply of oil to a turbocompressor and a block/head of cylinders 25
Collars of fastening of hoses of nadduvochny air 6
Carving stopper in GRM cover
  • Carving of M20x1.5 and M40x1.5
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
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 the TNVD drive of the M51 engine 15
Fuel cut-off valve 20
The Verkhnepotochny catalytic converter to a turbocompressor
  • M57 engine
42
  • M67 engine
15
Collar of the back additional muffler 15
Electrical wiring fixture to the electronic catalytic converter 5
Fuel reserve sensor fixture to the soaking-up device 2
Fixture of assembly of the fuel pump to the fuel tank 6.5
Turbocompressor fixture to a final collector 50
Hollow bolt of fastening of the giving oil tube to a turbocompressor and the block of cylinders 25
Collars of fastening of hoses of nadduvochny air 6


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5.2.8. Removal of other components of the K/V system
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6.1. General information and security measures