BMW 3 of the E46 series

1 Merge cooling liquid, including from the block of cylinders, address to the Section Replacement of Cooling Liquid.
2 Remove the thermostat, address to the Section Removal and installation of the thermostat.
3 Remove the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.
4 Remove spark plugs, address to the Section of the Spark plug.
5 Remove ignition coils, address to the Section Removal and installation of coils of ignitions/cables of ignition.
6 Turn off bolts of fastening and remove a reception pipe of system of release, address to the Section Removal and installation of system of release.
7 Turn off bolts of fastening and uncover heads of cylinders. Thus at first weaken evenly cross-wise bolts, then turn out them.

8 Turn off bolts of fastening and remove the holder of the device of air supply and the electromagnetic valve with pressure accumulator (shooters on an illustration).

9 Turn off bolts of fastening and remove the sensor of provision of a camshaft and take out it together with a sealing ring.

10 Turn off bolts of fastening and remove the top cover of a box of the GRM drive. Remove rubber laying under the lower cover.

11 Cut through from within outside and remove sealing laying of a head of cylinders at the top edge of the lower cover (an arrow on an illustration). Laying needs to be replaced. As the spare part it is possible to use laying for the top cover of a box of the GRM drive.

12 Turn a cranked shaft for the central bolt of fastening to the right side so that the piston of the first cylinder was in VMT. Thus the arrow on an asterisk shows up. One of the next ways can turn a cranked shaft: — Tighten the parking brake and establish a check point in neutral situation. Turn a cranked shaft for the central bolt of fastening of a pulley by means of a face key in the direction of an hour hand. — Lift and put lateral back part of the car on supports. Include the fifth transfer and release the parking brake. Turn the lifted back wheel. Thus, the cranked shaft is turned. This operation requires the assistant. — Put the car on an equal platform. Include the fifth transfer. Shift the car forward or back.

13 Record camshafts the BMW-11 3 190 tool shown on an illustration in this situation. It is possible to use also the tool of KLANN, KL-0580-5 firm.

14 Record a cranked shaft in situation VMT by the BMW-11 2 300 tool or the corresponding core. For this purpose insert a core through an opening in the block of cylinders into an opening in a flywheel (an arrow on an illustration), previously having taken out a stopper.

15 Turn off bolts of fastening of an asterisk of a camshaft. Slowly shift a boot of a natyazhitel for a hexagon by means of a wrench back and thus unload a chain. Remove an asterisk.

16 Turn off bolts of fastening and remove from a head of cylinders an uspokoitel and a boot of a tension (an arrow on an illustration).

Before an otvorachivaniye of bolts of fastening of a head of cylinders turn a cranked shaft back on a corner 45 °. Thus, the contact of valves of pistons is excluded. After installation of a head of cylinders again turn a cranked shaft in position VMT of the first cylinder.

17 Weaken for some receptions bolts of fastening of a head of cylinders outside inside. The otvorachivaniye of bolts requires a special key of Torx, for example, of HAZET-2925.
18 by means of the assistant remove a head from the block of cylinders.

If it is necessary, carefully hook a head of cylinders a screw-driver, watching to damaging a sealing surface.

19 Clear a shaber a sealing surface of the block of cylinders of the remains of sealing laying. Watch that dirt did not get to openings of the block of cylinders. Close an opening rags.
20 Clear a sealing surface of a head of cylinders.

21 Check planeness of a head and the block of cylinders a steel ruler in the longitudinal and cross direction. If necessary process (work HUNDRED). The maximum deviation from planeness of 0.03 mm. The demanded height of a head of cylinders is specified in Specifications.

22 Carefully clear carving openings under bolts of fastening of a head of cylinders of oil and other pollution.

In carving openings there should not be an oil, otherwise bolts do not transfer a total pressure to a head of cylinders though they also are tightened by the determined moment. Besides, thus the block of cylinders can burst.

23 Check, whether there are two directing plugs (shooters on an illustration). If is not present, insert them and check reliability of landing.

24 Put on the fat-free surface of the block of cylinders new sealing laying without sealant so that openings remained open.

25 Establish a head of cylinders by means of the assistant. Thus wring out a wrench for a hexagon a boot of a natyazhitel back (an arrow on an illustration).

26 Oil motive new bolts of fastening of a head of cylinders. Then screw bolts and evenly tighten on a spiral from within outside to a prileganiye.

Surely establish new bolts. Bolts for some receptions are tightened. The thoriated dinamometrichesky key has to be applied to an inhaling.

27 Tighten bolts of fastening of a head of cylinders in sequence with 1 on 10 in three steps. The moments of an inhaling are given in Specifications.

The inhaling of bolts of fastening of a head of cylinders should be carried out with special care. Before an inhaling it is necessary to check the accuracy of a dinamometrichesky key. Besides, the inhaling of bolts requires an angular washer, for example, of HAZET 6690. If such washer available is not present, put a key, apply a goniometer to the key lever and note chalk a corner 90 °. Then turn a key at one time to the put mark.

28 Fix on a head of cylinders an uspokoitel and a boot of a tension of a chain of the GRM drive.
29 Turn a cranked shaft in position VMT of the first cylinder and insert a core.
30 Wring out for a hexagon a boot of a natyazhitel back and put on an asterisk with a chain. The arrow on an asterisk has to specify up. Expose oval openings on the center.
31 The camshaft has to be recorded in VMT. Fix an asterisk in this situation by four bolts the moment of 10 N • m.

33 Clear sealing surfaces under the top cover of a box of the GRM drive.
34 Check existence of damages of sealing laying between the top and lower covers of a box of GRM, if necessary replace. Put laying. Thus the eminence on laying has to enter a groove on a head of cylinders.
35 Replace paper laying of a cover of a box of GRM.

36 Grease with a thin layer of jellied greasing the top party of rubber laying and the BMW-11 2 330 tool. The tool is put on sealing laying before installation of a cover of a box of GRM. Besides, for the direction two fingers of BMW-11 4 110 are rolled in the top carving openings. Instead of the specified tools the thin steel sheet and two carving fingers can be applied.

37 Establish GRM box cover, insert and screw fastening bolts so that the bolt head adjoined. Take out the BMW-11 2 330 tool.

38 Establish a cover of a head of cylinders without laying. Screw M6 screws with big washers (shooters on an illustration). Thus the cover of a box of GRM has to nestle down so that the top edges of a cover of a box and a head of cylinders lay at one level. In this situation tighten bolts of fastening of a cover of a box of GRM the moment of 15 N • m. Remove the directing fingers and screw the remained bolts on their place, tighten them also the moment of 15 N • m.

39 Again uncover heads of cylinders.

40 Grease with elastic sealant, for example, of "Drei Bond 1209" or "Loctit Ultra Black" the interfaced surfaces of a cover of a box of GRM and a head of cylinders (an arrow on an illustration).

Grease with 41 Same sealant transitions to a semicircle of sealing laying (the shooter on an illustration).

42 Fix cross-wise a cover of a head of cylinders with laying the moment of 10 N • m. Watch that laying did not act.

The cover of a head of cylinders is damped and condensed with rubber laying of bolts of fastening. Therefore do not turn rubber laying.

43 Insert and fix the sensor of provision of camshafts with a sealing ring.
44 Zakrepimte bolts a reception pipe of system of release, address to the Section Removal and installation of system of release.
45 Install the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.
46 Install ignition coils, address to the Section Removal and installation of coils of ignitions/cables of ignition.
47 Establish spark plugs, address to the Section of the Spark plug.

48 Fix the holder of air supply and the electromagnetic valve with pressure accumulator.

49 Install the thermostat, address to the Section Removal and installation of the thermostat.
50 Fill system with cooling liquid and remove from it air, address to the Section Replacement of Cooling Liquid.
51 Check oil level in the engine. If necessary add oil to a mark the MOVE.

If the head of cylinders was removed owing to defective laying, replace oil as in motive oil there can be a cooling liquid. Replace oil, address to the Section Replacement of Motive Oil and Oil Filter.

As removal of a head of cylinders represents quite labor-consuming operation and demands the special BMW tool, it is recommended to perform this work on HUNDRED.

52 Remove the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.
53 Remove camshafts, address to the Section Removal and installation of camshafts.
54 Remove both inlet pipelines from a head of cylinders.

For this purpose the engine has to be suspended on the crane and one support of the engine is released, address to the Section Removal and installation of the pallet of a case.

55 Again tighten nuts of M10 of fastening of a support of the engine the moment of 47 N • m also remove the crane. If M8 nuts are established, them it is necessary to tighten the moment of 22 N • m.
56 Merge cooling liquid and disconnect the thermostat case, address to the Section Removal and installation of the thermostat.
57 Turn off two bolts of fastening and remove from a head of cylinders a branch pipe of cooling liquid under the inlet pipeline.

58 Turn out GRM box cover screws (arrows on an illustration). Instruction: Camshafts on it and the following illustrations are shown established, but actually have to be removed.

59 Turn off bolts of fastening and take out an uspokoitel of a driving chain of GRM (an arrow on an illustration).

60 Weaken for some receptions bolts of fastening of a head of cylinders outside inside. Performance of this operation requires a key for Torx screws, for example, of HAZET 2925.

After removal of a head of cylinders do not put it on a sealing surface. Thus completely open valves can be damaged. Put a head on two wooden whetstones.

61 Remove the remains of sealing laying with solvent for sealant and a shaber from strong breeds of a tree. Watch that the remains of sealant did not get to openings. Close openings rags.
62 Carefully clear carving openings for bolts of fastening of a head of cylinders of oil and other pollution by compressed air or the rag wound around a narrow screw-driver.

Do not allow hit of oil in carving openings as it distorts the moment of an inhaling of bolts. Besides, it can lead to formation of cracks in the block of cylinders.

63 Check the directing plugs (arrows for illustrations) on existence of damages and reliability of landing. They serve for centering of a head of cylinders.

64 Check planeness of a head and the block of cylinders a steel ruler in the longitudinal and cross direction. If necessary process (work HUNDRED). The maximum deviation from planeness of 0.03 mm. The demanded height of a head of cylinders is specified in Specifications.

65 Grease transitions to a GRM drive box cover with elastic sealant, for example, of "Drei Bond 1209" or "Loctite Ultra Black".
66 Replace sealing laying of a head of cylinders. Put new laying without sealant so that not to block any opening.
67 Establish into place by means of the assistant a head of cylinders. Do not recolour it, otherwise new sealing laying can be damaged.
68 Oil motive new bolts of fastening of a head of cylinders. Then tighten fastening bolts on a spiral evenly from within outside to a prileganiye.

72 Fix on a head of cylinders two bolts a branch pipe of cooling liquid, having established new sealing rings
73 Establish both final collectors on a head of cylinders, address to the Section Removal and installation of a final collector.
74 Establish camshafts, address to the Section Removal and installation of camshafts.
75 Install the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.
76 Install the thermostat case, address to the Section Removal and installation of the thermostat.
77 Fill system with cooling liquid, remove air, address to the Section Replacement of Cooling Liquid.
78 Check oil level in the engine, if necessary add oil to a mark the MOVE.

If the head of cylinders was removed owing to defective sealing laying, replace oil as in motive oil there can be a cooling liquid. Replacement of oil address to the Section Replacement of Motive Oil and Oil Filter.

Signs of defective sealing laying of a head of cylinders are given in the Section Removal and installation of the inlet pipeline.

As removal of a head of cylinders represents quite labor-consuming operation and demands the special BMW tool, it is recommended to execute it in conditions HUNDRED.

79 Remove the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.
80 Remove the filtering element of the air filter, address to the Section Replacement of the Filtering Element of the Air Filter.
81 Remove fuel pipelines and nozzles, address to the Section Removal and installation of nozzles.

82 Turn off bolts-1-and remove the soaking-up branch pipe.

83 Rasstykuyte the socket of the measuring instrument of mass of air, having pressed a wire clamp at the plug.
84 Turn off bolts of fastening of a cover of a head of cylinders cross-wise in the return sequence, that is with 22 on 1.
85 Merge cooling liquid, including the block of cylinders, address to the Section Replacement of Cooling Liquid.
86 Disconnect hoses of cooling liquid at the thermostat case for what a screw-driver raise wire clamps, address to the Section Connection and separation of the quick disconnect coupling.

87 Turn off bolts of fastening and remove a turbocompressor from a reception pipe (an arrow on an illustration).

88 Remove a radiator of system of recirculation of the fulfilled gases-1-together with the thermostat-2-. For this purpose release collars of both hoses of cooling liquid under a radiator of system of recirculation and remove hoses. Turn off bolts of-3 fastenings of the holder from both parties of a radiator.

89 Turn off bolts of fastening and remove a branch pipe of cooling liquid under the thermostat case at a head of cylinders. Disconnect a branch pipe at the holder of a head of cylinders.
90 Remove both camshafts, address to the Section Removal and installation of camshafts.

91 Twist fingers of an uspokoitel and a boot of a tension in the places noted by shooters.

The left finger on an accompanying illustration is closed by the vacuum pump.

92 Take out a boot of a natyazhitel up.

93 Turn off bolts of fastening of a box of driving chains (an arrow on an illustration). Turn out bolts, also invisible on an illustration, in points-1-and-2-.

94 Weaken bolts of fastening of a head of cylinders in the return sequence with 10 on 1, having turned off them on 1/2 turns. Then in the same sequence turn out. And – the party of an admission; In – the party of release.

95 Remove a head of cylinders by means of the assistant.

After removal do not put a head of cylinders on the condensing surface, thus glow plugs can be damaged. Put a head of cylinders on two wooden whetstones.

96 Lay new laying without sealant so that not to block any opening. Laying depending on thickness has marking by various number of openings (the shooter on an illustration) New laying has to have the same number of openings, as being earlier.

Joints of a box of driving chains with a head of cylinders are not condensed with sealant. On laying in these parts there are additional sealing strips (shooters on an illustration).

97 Bolts of fastening of a head of cylinders are tightened for 5 receptions. For each reception the inhaling is conducted in sequence with 1 on 10 bolt. And – the party of an admission, In – the party of release. Efforts of a tightening are given in Specifications.

98 Tighten bolts of fastening of a box of driving chains the moment of 15 N • m.
99 Screw 2 new pins of a boot of a tension and an uspokoitel of a chain. Pins are replaced as their surface has a covering for self-latching.
100 Fix an asterisk with the chain which is put on it on distributive to a shaft. Do not tighten bolts yet.

The adjacent surface has to be pure and fat-free.

101 Take out a core from a natyazhitel of a chain so that the chain stretched. Screw in an opening in a head of cylinders a cap for a core.
102 Establish camshafts, address to the Section Removal and installation of camshafts.
103 Fix a branch pipe of cooling liquid with new laying under the thermostat case at a head of cylinders.
104 Fix bolts a radiator of system of recirculation with new laying. Put on hoses of cooling liquid and fix them collars.
105 Put on hoses of cooling liquid the case of the thermostat and fix them, address to the Section Removal and installation of the thermostat.
106 Fix a turbocompressor with new consolidation by the new self-stopped nuts on a final collector. Previously cover bolts with high-temperature paste. Tighten nuts the moment of 45 N • m.
107 Establish surely new sealing laying of a cover of a head of cylinders
Condense 108 Corners of a sealing surface of a cover of a head of cylinders between a head of cylinders and the vacuum pump with rollers from Drei Bond 1209 or Loctite Ultra Black sealant height and 2 mm wide.

109 Wrap bolts of fastening of a cover of a head of cylinders cross-wise by hand in sequence from 22 on 1. Then tighten them in the same sequence the moment of 15 N • m.

110 Join the socket of the measuring instrument of mass of air, the plug has to be fixed.

111 Fix an inlet branch pipe two bolts.

112 Establish nozzles and fuel pipelines, address to the Section Removal and installation of nozzles.
113 Install the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.
114 Establish the filtering element of the air filter, address to the Section Removal and installation of the air filter of the engine.