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
7. Systems of electric equipment of the engine
7.1. Systems of ignition, preheat and engine management
7.1.1. Main data and security measures
7.1.2. Search of malfunctions - the general information and preliminary checks
7.1.3. Diagnostics of a control system by the engine
7.1.4. Replacement of candles and ignition coils
7.1.5. Replacement of rotors of distributors of ignition
7.1.6. Replacement of candles of an incandescence
7.1.7. Removal and ECM installation
7.1.8. Replacement of sensors of a control system with the engine
7.2. Charge and start systems
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




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7.1.8. Replacement of sensors of a control system with the engine

 PERFORMANCE ORDER

  1. Procedure of replacement of sensors consists in separation of the socket and a reversing or sensor removal.

  1. Sensors of temperature and pressure of impellent oil are located on a socle of the oil filter.
  1. The temperature sensor in a compartment is established to operating electronics directly in a compartment. For ensuring access to the sensor uncover a compartment. Separate the socket, unclench clamps and take the sensor.

Sensor of level of impellent oil

 PERFORMANCE ORDER

  1. Switch off ignition and lower impellent oil.

  1. Separate the socket of the sensor located on a case of the engine.
  1. Give fixture and take out the sensor. At installation use new laying.

Sensor of temperature of OZh

 PERFORMANCE ORDER

  1. On the M51 engine remove the inlet pipeline (see. Head the Engine), separate the socket and remove the sensor.

  1. On the M52 engine the sensor is located in front, under the inlet pipeline. Uncover injectors (see. Head of the Power supply system and production of the fulfilled gases) also disconnect the line of ventilation of a case. Separate the socket and turn out the sensor.
  1. On the M52TU engine the sensor is located under the inlet pipeline, in a head of cylinders, near the cylinder No. 6. Remove the inlet pipeline, separate the socket and turn out the sensor.

  1. On the M60 engine the sensor (1) is located on the back party of a broad tank of system of cooling of the engine. Separate the socket and remove the sensor.

  1. On the M62 engine with the IAC valve separate the socket and remove the sensor. In the absence of the IAC valve the sensor of temperature of OZh is established in a forward part of the pipeline, – remove vacuum pipelines, separate the socket (2) and remove the sensor.

  1. On the M67 engine remove separate the socket (1) and take aside a plait of electroconducting (2). Turn out the sensor by means of the special adaptation.

At installation if necessary it is necessary to replace a sealing ring of the sensor.

The sensor of temperature of soaked-up air (IAT)

 PERFORMANCE ORDER

  1. On the M52 engine remove the throttle case (see. Head of the Power supply system and production of the fulfilled gases).

Cables of a drive and system of heating of a butterfly valve remain connected. Separate the socket, wring out a clamp and remove the sensor.


M52 engine IAT sensor
  1. On the M52TU engine uncover injectors (see. Head of the Power supply system and production of the fulfilled gases). Separate the socket, wring out a clamp and remove the sensor.

  1. On M60 and M62 engines remove the top cover of the engine. On the M60 engine the sensor is built in soaking-up pipeline, – wring out fixing spring, separate the socket and turn out the sensor. On the M62 engine the IAT sensor is fixed on the top part of the case of an air purifier.
  1. On the M73 engine wring out fixing spring, separate the socket, wring out a clamp and remove the sensor.

Sensor of a consumption of air (MAF)

M51 engine

 PERFORMANCE ORDER

  1. Remove the air purifier case (see. Head of the Power supply system and production of the fulfilled gases).
  1. Separate the socket.
  1. Weaken a collar (1) fastening of a hose on a turbokompressor and disconnect an air intake hose to the MAF sensor.
  1. Raise the MAF sensor with the air purifier case that it was possible to weaken a collar (1) fastening of a hose a little. Remove the air purifier case together with an air flowmeter.
  1. Wring out spring clamps at the left and on the right and remove the thermofilter (1). Turn out bolts (2).

At installation check a condition of a sealing ring of the MAF sensor and if necessary to replace a sealing ring.

M52 engine

 PERFORMANCE ORDER

  1. Weaken a collar (1), wring out brackets (2), separate the socket (3) and remove the MAF sensor.
  1. At installation check a condition of sealing laying between the MAF sensor and the top part of an air purifier and if necessary replace it.

M52TU engine

 PERFORMANCE ORDER

  1. Separate the MAF sensor socket (1), disconnect a vacuum hose (2) from a soaking-up hose. Weaken a collar (3) fastenings of a hose.
  1. Unclench clips on the case of an air purifier and disconnect soaking-up hose with the MAF sensor.
  2. At installation check a condition of sealing laying between the MAF sensor and the top part of an air purifier and if necessary replace it. MAF sensor installation with the damaged lattice is not allowed.

M57 engine

 PERFORMANCE ORDER

  1. Remove the top cover of the engine and a casing of the fan of system of cooling of the engine.
  1. Turn out bolts and disconnect soaking-up sleeve in the arrow direction.
  1. Separate the MAF sensor socket (2), turn out bolts (1) and remove the sensor.

Engines M60, M62, M73

 PERFORMANCE ORDER

  1. Separate the MAF sensor socket (1), weaken a collar (2) and disconnect soaking-up hose from the MAF sensor.
  1. Open clips (1) and disconnect the MAF sensor from the top section of an air purifier.
  1. At installation check a condition of sealing laying between the MAF sensor and the top part of an air purifier and if necessary replace it.

Sensor of pressure of pressurization

 PERFORMANCE ORDER

  1. On the M57 engine the sensor of pressure of pressurization is established behind on the inlet pipeline, – separate the socket (1) turn out a bolt (2) and remove the sensor (3).
  1. On the M67 engine remove the top cover of the engine, separate the socket of the sensor of pressure of pressurization, turn out a bolt (to the left of the sensor) and remove the sensor.
  1. At installation check and if necessary replace a sealing ring of the sensor of pressure of pressurization.

Sensor of provision of a cranked shaft (CKP)

M51 engine

 PERFORMANCE ORDER

  1. The CKP sensor is established under a starter.
  1. Take aside a radiator branch pipe on an entrance in the engine to see a label (1) on GRM cover. Turn a cranked shaft on an hour hand so that the label on a damper (2) krutilny fluctuations coincided with a label (1) on GRM cover. Separate the CKP sensor socket, having pressed fixing bracket of the socket.
  1. Turn out a bolt, remove the CKP sensor together with the holder and disconnect the sensor from the holder.
  1. Establish on the holder the adaptation No. 13 6 040, establish the holder on the block of cylinders and shift against the stop forward. Thus the necessary interval (A) between an aligning pin on a flywheel and the CKP sensor is established. Fix the holder.
  1. Now, when the adaptation settles down near an aligning pin (1) basic signal of a flywheel, remove the adaptation from the holder.

The holder on the block of cylinders do not turn on any more.

  1. Establish the new CKP sensor in the holder and join the electroconducting socket.

M52 engine

 PERFORMANCE ORDER

  1. The CKP sensor is established under a starter, – remove the air purifier case, turn out a bolt and remove the sensor.
  1. Separate the socket (2) electroconductings under the inlet pipeline.

Engines M57, M60, M62, M73

 PERFORMANCE ORDER

  1. On the M60 engine remove the top cover of the engine.

  1. Separate the socket of electroconducting of the CKP sensor.

  1. Turn out a bolt and remove the CKP sensor.
  1. On M62 and M73 engines at replacement of a transmission, a flywheel or the CKP sensor pay attention that if between the sensor and a case of a transmission one or several adjusting washers are established, it is necessary to measure distance between the sensor and rotor teeths. For this purpose turn a cranked shaft for the central bolt clockwise forward so that through an opening of the removed CKP sensor it was possible to see completely one tooth of a rotor precisely on the opening center. Measure distance from a flange of a nest of the sensor to tooth of a rotor and from the received result subtract distance from an interfaced surface of the sensor to its end face. The received size is distance a gap between the sensor and a rotor and should make 0.55 ± 0.2 mm. If necessary adjust a gap by means of the washers established under the sensor.

M67 engine

 PERFORMANCE ORDER

  1. Remove back section of protection of a case, disconnect a negative wire from the storage battery.
  1. Turn out bolts (1) and take away a positive wire (2) battery rooms of the battery aside.
  1. Separate the socket (1), turn out a bolt (2) and remove the CKP (3) sensor.

Sensor of provision of a camshaft (CMP)

M52 engine

 PERFORMANCE ORDER

  1. Remove a protective casing of injectors and separate the socket Ý/m the valve of system of adjustment of phases GRM (Vanos) on an assembly level of nozzles.
  1. Turn out Ý/m the Vanos valve.

At installation check and if necessary replace sealing laying.


  1. Disconnect the hydraulic actuator pipeline from the Vanos system activator.
  1. Turn out a bolt of fastening of the CMP sensor and separate the socket of its electroconducting under the inlet pipeline (3).

At installation use the new screw. Check and if necessary replace sealing laying.

Engines M57, M60, M62

 PERFORMANCE ORDER

  1. Remove the top cover of the engine and separate the CMP sensor socket.

  1. Turn out a bolt and remove the sensor.

At installation check and if necessary replace a sealing ring of the sensor.

M73 engine

 PERFORMANCE ORDER

  1. Uncover the left distributor of ignition with In/in wires (see. Section Replacement of rotors of distributors of ignition).
  1. Turn out a bolt and remove the sensor.

At installation check and if necessary replace a sealing ring of the sensor.

Detonation sensor

Do not mix electroconducting of sensors of a detonation at connection of its sockets since it can lead to engine damage.


 PERFORMANCE ORDER

  1. Remove the inlet pipeline.
  2. On the M52 engine separate the socket (1).

  1. Turn out bolts and remove detonation sensors.
  1. Before installation of sensors clear their interfaced surfaces.


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7.2. Charge and start systems