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
6.4.1. General information
6.4.2. Removal and installation of the supercharger of air of the SAI system
6.4.3. Removal and installation lambda probes
6.4.4. Removal and installation of system of release of OG
6.4.5. Replacement of mufflers
6.4.6. Removal and installation of the tank and adsorber of the EVAP system
6.4.7. Removal and installation of the EVAP valve
6.4.8. Removal and installation of a radiator of the EGR system
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



6-4-4-snyatie-i-ustanovka-sistemy-vypuska-og.html

6.4.4. Removal and installation of system of release of OG

Models with the M51 engine

 PERFORMANCE ORDER

  1. Remove the panel of protection of a case of the engine and prop up assembly of system of release of OG.
  1. Give fixture of the holder of the catalytic converter.
  1. Give nuts and disconnect an exhaust pipe from a turbocompressor.

At installation replace nuts and grease a carving with copper-bearing CRC paste.


  1. Give six-sided nuts and turn out bolts with a six-sided head, remove a collar of fastening of a reception pipe.

At installation expose a collar of fastening of a reception pipe after full installation of system of release of OG so that components of system were not strained.


  1. Give nuts and remove system of release of OG assembled.
  1. Installation is made upside-down.

Models with M52, M60, M62 engines

 PERFORMANCE ORDER

  1. If necessary, remove the back panel of protection of a case of the engine and the thermofilter on a beam of the forward bridge.
  2. Disconnect back elements of fastening of catalytic converters from a body (see an illustration).
  3. Prop up system of release of OG.
  4. On models with M60 and M62 engines separate sockets left and right a lambda probes (see the Section Removal and installation a lambda probes). Release an electrical wiring from clips.
  1. On models with M60 and M62 engines disconnect system of release of OG from final collectors.

At installation replace a sealing ring.


  1. On models with the M52 engine turn out bolts and nuts of fastening of a flange.

At installation check and, if necessary, replace laying. Replace nuts and grease a carving with cupriferous CRC paste.


  1. On models with M60 and M62 engines give nuts of rubber-metal hinges of fastening of the additional muffler (behind the basic) on a beam of the back bridge.
  1. On models with the M52 engine give nuts of rubber-metal hinges of fastening of the additional muffler (behind the basic) on a beam of the back bridge.
  1. On models with the M60 engine give nuts of clips of fastening of the additional muffler (behind the basic) with left and with right the parties. Remove system of release of OG assembled.
  1. On models with the M52 engine give nuts of rubber-metal hinges on the additional muffler (behind the basic) with left and on the right side. Remove system of release of OG assembled.
  1. Installation is made upside-down. On models with M60 and M62 engines previously displace the rubber-metal hinge in the direction of the movement of the car on distance And = 15 mm.

Models with the M52TU engine

 PERFORMANCE ORDER

  1. Give nuts on flanges and separate pipes. Check a condition of laying and if necessary replace them.

At installation replace nuts, grease a carving with cupriferous CRC paste.


  1. Turn out a bolt (1) and remove fastening of a reception pipe.

At installation align to the center without tension a collar of fastening of a reception pipe after full installation of system of release of OG. For this purpose weaken bolts (2).

  1. Prop up system of release of OG and record it from falling.
  1. Turn out bolts (1 and 2) with a six-sided head and remove an intermediate insert (3). The forward intermediate insert is connected to system of release of OG via the rubber-metal hinge.
  1. Give nuts of the forward hinge on the back additional muffler.
  1. Give nuts of the back hinge on the back additional muffler and remove system of release of OG assembled.
  2. Installation is made upside-down.

Models with the M57 engine

 PERFORMANCE ORDER

  1. Prop up system of release of OG and record it from falling.
  1. Give nuts (1) and remove an exhaust pipe (2) the movement back.
  1. Turn out bolts (1) and remove a bracket (2).
  1. Give fixture of the holding plate (see an illustration).
  1. Remove rubber rings on both additional mufflers and remove system of release of OG.
  1. Installation is made upside-down.

Models with M57 and M67 engines

 PERFORMANCE ORDER

  1. Prop up system of release of OG and record it from falling.
  1. On models with the M57 engine give nuts (1) and remove an exhaust pipe (2) the movement back.
  1. On models with the M57 engine turn out bolts (1) and remove a bracket (2).
  1. On models with the M67 engine turn out bolts (1 and 2) and remove the fixing bracket.
  1. Give fixture of the holding plate (see an illustration).
  1. Remove rubber suspensions on both additional mufflers and remove system of release of OG.
  1. Installation is made upside-down.

Models with the M73 engine

 PERFORMANCE ORDER

  1. On models to 09.1998 g of the issue (without electronic catalytic converter) separate sockets left and right a lambda probes and release their electrical wiring. Pass to paragraph 6.
  1. On models from 09.1998 g of the issue (with the electronic catalytic converter) turn out a bolt (1), give a nut (2) and uncover (3).

Paragraphs with 3 on 5 belong to models from 09.1998 g of the issue.


  1. Unclench the holder and release the socket (1). Separate sockets of an electrical wiring right a lambda probe and positive wires of the electronic catalytic converter. Uncover the socket of an electrical wiring left a lambda probe and separate the socket. Give a nut (2) fastenings of a negative wire (3) to a body.
  1. Give a nut (1) of fastening of a negative wire to the electronic catalytic converter.

Tips of positive and negative wires have the conical form, for their removal use a special stripper (adaptation No. 18 0 050). At installation use new nuts.

  1. Because of danger of breakage of ceramic isolation, it is necessary to disconnect a positive wire from the electronic catalytic converter only in exceptional cases, for example, at damage of an electrical wiring.

Do not concern a positive wire in junctions.

  1. Disconnect the back panel of protection of the bottom and the thermofilter from a beam of the forward bridge.
  2. Disconnect back elements of fastening of catalytic converters from a body (see an illustration).
  3. Prop up system of release of OG and record it from falling.
  4. Disconnect system of release of OG from reception pipes (see an illustration).
  5. Disconnect the left and right rubber-metal hinges of fastening of the back additional muffler to a beam of the back bridge (see an illustration).
  6. Give nuts of clips of fastening of the back additional muffler from the left and right parties (see an illustration).
  7. Remove system of release of OG assembled.
  8. Installation is made upside-down. Previously displace the rubber-metal hinge in the direction of the movement of the car on distance And = 15 mm (see an illustration).
  9. On models from 09.1998 g of the issue (with the electronic catalytic converter) after installation it is necessary to make active the electronic catalytic converter by means of the diagnostic unit and to make check.


"previous page
6.4.3. Removal and installation lambda probes
following page"
6.4.5. Replacement of mufflers