BMW 3 Series E46

since 1998 release

Repair and operation of the car



BMW 3 Series E46
+ BMW 3 cars (E46)
+ Current leaving and service
- Engine
   - Procedures of repair of the engine
      Removal and installation of the lower cover of a motive compartment
      Removal and installation of a box of an air inlet
      Check of a compression
      Removal and installation of the inlet pipeline
      Removal and installation of a head cylinders / replacement of sealing laying
      Removal and installation of camshafts
      Removal and installation of the vacuum pump
      Removal, installation and tension of a maple belt
   + Engine lubrication system
+ Cooling systems, heating
+ Power supply systems, injection and release
+ Engine electric equipment
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment





Removal and installation of camshafts

Camshafts at the 4-valvate engine can be removed if, for example, it is necessary to weaken bolts of fastening of a head of cylinders. As the special BMW tool for this purpose is required, it is recommended to perform this operation on HUNDRED BMWs.

At installation without special tool there is a danger of damage of camshafts. Besides, valves can be bent at contact with the bottoms of pistons.

All elements of the valvate drive, for example, inserts of bearings or dish-shaped springs and gear plugs on asterisks have to be established on their former places. For this purpose they need to be placed on the special pallet.


Models 320i, 323i, 328i (M52TU engine)

 REMOVAL

1 Remove a casing of the air filter, address the Section Removal and installation of the air filter of the engine.
2 Remove spark plugs, address the Section of the Spark plug.

3 Disconnect a branch pipe of ventilation of a case at a cover of a head of cylinders of the pipeline".

4 Turn off bolts of fastening and uncover a head of cylinders (an arrow on an illustration). At the same time pay attention to rubber laying of bolts of fastening that later it is correct to establish them.

5 Remove the fan fan/coupling, address the Section Removal and installation of the fan with the viscous coupling.
6 Uncover the camshaft of inlet valves.

7 Disconnect an oil pipeline (the shooter on an illustration) at the double VANOS block.

8 Instead of an oil pipeline attach to the double VANOS block compressed air through the corresponding adapter and give air pressure from 2 to 8 bars.

These and subsequent operations are necessary to install camshafts in their basic position.

9 Turn a bent shaft at least on two turnovers of the direction of an hour hand at the loaded VANOS block. It is possible to turn one of the next ways a bent shaft and respectively the engine:

— Switch the check point to neutral situation and tighten the parking brake. Turn a bent shaft for the central bolt of fastening of a pulley in the direction of an hour hand by means of a head.
— Lift and install the car on supports sideways behind. Include the fifth transfer and release the parking brake. Turn the lifted back wheel forward. At the same time the bent shaft at the same time turns
— Install the car on the flat platform. Include the fifth transfer. Carefully shift or ask to shift the car forward.

10 Establish a bent shaft in the provision of VMT of the first cylinder. Tops of cams (an arrow on an illustration) inlet and final valves of the first cylinder (from the GRM drive) have to be turned up.

11 Record a bent shaft in the provision of VMT the BMW tool or other suitable core. For this purpose insert a core into an opening in the block of cylinders (the shooter on an illustration) in a flywheel opening, having taken out previously a stopper in the block of cylinders.

12 Turn out hairpins (arrows on an illustration).

13 Fix camshafts the BMW-11 3 240 tool, shown on an illustration in the provision of VMT of the first cylinder. It is possible to use the KLANI KL-0580-4 tool. The tool is installed through a hexagon of camshafts and is imposed on an edge of a head of cylinders.

14 Disconnect compressed air from the VANOS-4-block.

After opening of carving traffic jams oil follows. Prepare a rag and capacity. The oil which got on rubber elements and maple a belt, immediately wipe.

15 Turn out carving traffic jams-1-in an axis of camshafts of inlet and final valves, wipe the flowed-out oil.
16 Take out cover flat-nose pliers - 2-under traffic jams.
17 Turn out the calibrated bolts-3-under covers.

Bolts have the left carving, that is for an otvorachivaniye they should be rotated to the right.

18 Turn off an eye (arrows on an illustration).

19 I will corrode Rasstykuyte at the VANOS block.

20 Turn off nuts (arrows on an illustration) and remove the VANOS block.

After removal of the VANOS block to turn the engine it is not allowed. The gear roller of the camshaft of inlet valves can slip out shlitsevy connection and valves will become uncontrollable and can strike the piston bottom.


21 Turn out a natyazhitel of a chain (the shooter on an illustration) at a head of cylinders.

Hold a natyazhitel, he is under pressure of a spring.


22 Press the top natyazhitel of a chain at a connecting chain between camshafts and record in this situation, having inserted the BMW-11 3 292 tool.

23 Turn off three nuts of fastening of the sensor on an asterisk of the camshaft of final valves. Remove a sensor wheel from a dish-shaped spring from an asterisk.

24 Turn off fastening nuts (arrows on an illustration) on an asterisk of the camshaft of inlet valves. Remove a persistent washer from an asterisk.

Before an otvorachivaniye of nuts of fastening of an asterisk of the camshaft of final valves lead round nuts a felt-tip pen that at installation to fix an asterisk in its former situation. Otherwise it is correct to expose asterisks it will be possible only by means of the special BMW tool.

25 Turn off three bolts of fastening of an asterisk of the camshaft of final valves.
26 Remove both asterisks with a chain from camshafts.

27 Disconnect the top natyazhitel of a chain (an arrow on an illustration).

28 Disconnect an asterisk from the camshaft.

Fix an asterisk by a wire that it did not slip down.


29 Removal of camshafts requires BMW 11 3 260 adaptation. It is intended for all bearings of camshafts in the provision of installation when inserts of bearings are released. Operation of removal of both camshafts is identical, the sequence of removal does not matter.

30 Turn out spark plugs. Install adaptation and fix it in carving openings of spark plugs of cylinders 1 and 4 by the moment of 25 N • m.

31 Turn a wrench an eccentric shaft in the direction of an arrow and fix covers of bearings.

32 Weaken bolts of fastening of all covers of bearings.

The cover of the first bearing of the camshaft of inlet valves is aligned by plugs. For an exception of a distortion of the camshaft turn off bolts of fastening of a cover of the first bearing and remove it.

33 Weaken adaptation and remove it.

34 Uncover bearings and camshafts. Put covers as their installation on the engine. Installation of covers on the engine needs to be executed in the same order. Covers of bearings of the camshaft of final valves have marking from A1 on A7, camshafts of inlet valves from E1 on E7 (arrows on an illustration).

35 If it is necessary, for example, for removal of valves, remove in a set a level of bearings-2-with pushers. Pay attention to the aligning plugs-2-. Levels of bearings in a point "2" have marking "And" for the party of release and "Е" for the party of an admission.

Pushers of valves can slip out a level of bearings down if they are not fixed. HUNDRED BMWs apply to this purpose of a sucker which can be established from above on a pusher and interfere with a vyskalzyvaniye. Mark pushers. They have to be established on the former place if were taken out from a level. 1 - head of cylinders.

Do not put the removed pushers more than for 10 min. on a head, otherwise from it motive oil will flow out and automatic compensation of valvate gaps will cease to work.


Asterisks of a driving chain of the VANOS block

1 — a wheel of the pulse sensor
2 — a dish-shaped spring
3 — a persistent washer of 3.5 mm
4 — a gear shaft
5 — an asterisk
6 — the TORX screw
7 — the gear plug
8 — an asterisk
9 — a pin

10 — the camshaft of inlet valves
11 — a figured washer
12 — a gear shaft
13 — an asterisk
14 — a pin
15 — a persistent washer
16 — a wheel of the pulse sensor
17 — the camshaft of inlet valves



 INSTALLATION

Before installation of camshafts turn a bent shaft approximately on 30 ° against the direction of rotation of the engine (to the left for a pulley hexagon) through VMT. Thus, any of pistons will not stand above and it will be possible to put valves into place. Hydropushers of valves without loading from the camshaft are extended and after installation demand some time again to contract. Thereof valves can be open more, than it corresponds to position of the camshaft and can get on pistons. Therefore after installation of camshafts it is necessary to wait 40 min. until it is possible to turn the engine. Only after that it is possible to turn a bent shaft in the provision of VMT and to establish GRM drive chains, address the subsection Installation of a Head of Cylinders.

1 Check a surface of pushers, with defects replace.
aspredelitelny shaft also install camshafts so that tops of cams of the first cylinder showed at each other.

2 Establish a level with bearings and the inserted pushers in a head of cylinders. Check existence of the centering plugs-3-.

3 Insert inserts of bearings according to marking. They have to be at former places.
4 Insert the device and clamp inserts.
5 Tighten inserts of camshafts the moment of 15 N • m.
6 Remove adaptation.

7 Insert a ruler for fixing of camshafts.

8 If necessary. An arrow - a hexagon of the second camshaft.

You watch to damaging the case of camshafts. If necessary to a soshlifuyta outside wrench.

9 Fix a wheel of the sensor and a persistent washer on the camshaft of inlet valves by the moment of 20 N • m.

10 Establish an asterisk on distributive to a shaft of final valves. The arrow on an asterisk has to specify towards the top edge of a head of cylinders.

11 The piston of a natyazhitel of a chain-1-is turned out. Screw in a carving of a natyazhitel the BMW tool – 11 4 220.

The specified tool presses a chain and pulls a little it that asterisks of camshafts were in the working family way. With some skills such tool can be manufactured independently. In the absence of the tool the correct installation of a chain is impossible.

12 Slightly press a natyazhitel of a chain rotation of the tension screw of the BMW tool – 11 4 220. The chain should not sag.

13 Expose an asterisk on the camshaft of final valves. The arrow on an asterisk has to specify in the parties of the top edge of a head of cylinders.

14 Fix an asterisk on distributive to a shaft of final valves by three bolts the moment of 28 N • m.

15 Fix the top natyazhitel of a chain.

16 Insert the gear plug-6-. At the same time hollows of teeths on distributive to a shaft and the gear plug have to be opposite to each other (an arrow on an illustration).

17 Insert a gear shaft so that bolts of fastening of an asterisk lay in the center of oval openings of the gear plug.

18 Put on the top chain asterisks and expose according to the markings put at removal. If new details are established, transfer to them markings from old details.

19 Put on the top chain with both asterisks camshafts. At the same time hollows of teeths (the shooter on an illustration) on distributive to a shaft of inlet valves and on an asterisk have to be opposite to each other. Insert a gear shaft-4 pins into hollows of teeths and press.

Unlike an illustration the persistent washer-5-is not established yet.

20 Again take out a gear shaft-4-a little so that 1 mm of width of tooth was visible.
21 Establish a persistent washer on an asterisk of the camshaft of inlet valves so that it was possible to read the inscription "FRONT". Screw nuts of fastening of an asterisk so that they prilgat, but do not tighten them.
22 Fix an asterisk of camshafts, having tightened nuts the moment of 5 N • m, and then again weaken them half way.
23 Establish a persistent washer on an asterisk of the camshaft of inlet valves so that the inscription "F" was visible. If the inscription is not visible, pay attention to the direction of installation of a persistent washer: Big adjacent diameter has to show in the direction of the camshaft.
24 Establish a sensor wheel on an asterisk of the camshaft of final valves. The arrow on a wheel has to be turned outside towards the top edge of a head of cylinders.
25 Take out against the stop a gear shaft on an asterisk of the camshaft of final valves.

26 Press a hand on a natyazhitel of the top chain and remove the fixing BMW tool.

27 Pull a chain rotation of the tension screw of the BMW-11 4 220 tool the moment of 0.7 N • m.

28 Clear the sealing surface of the VANOS block of oil and pollution. Check existence of the directing plugs-1-.

29 Fix the BMW-11 6 150 tool - 1-(shooters on an illustration). This tool fixes gear plugs at a tension of asterisks.

30 Press three nuts-2-and-3-to both asterisks at first the moment of 5 N • m, without tightening them.
31 Tighten bolts-4-in grooves the moment of 22 N • m.
32 Tighten nuts-2-and-3 moment of 22 N • m.
33 Disconnect the BMW-11 6 150 tool.
34 Condense corners of a sealing surface between a head of cylinders and the VANOS block Drei Bond 1209 or Loctite Ultra Black sealant.

35 Replace sealing laying of the VANOS block. Fix the block (arrows on an illustration). Tighten M6 nuts the moment of 10 N • m and nuts of M6 the moment of 22 N • m.

36 Join the socket at the VANOS block.
37 Screw the directing bolts at camshafts of inlet and final valves and tighten the moment 10 N • m.

The left carving, that is for a wraparound it is necessary to rotate to the left.

38 Replace the covers which are under carving traffic jams and insert them flat-nose pliers.
39 Wrap carving traffic jams with new sealing rings at camshafts an admission of inlet and final valves and tighten the moment 50 N • m.
40 Fix by bolts an engine eye in front.
41 Remove the special tool for fixing of distributive and cranked shaft.

42 Attach the pipeline of compressed air by means of an adapter and give air pressure of 2 - 8 bars.

43 Turn not less than on two turns a bent shaft in the direction of an hour hand and the VANOS block loaded with air.

44 Install the engine in the provision of VMT of the first cylinder. Tops of cams of inlet and final valves of the first cylinder (an arrow on an illustration) have to be turned up at the same time.

45 Again insert a core for fixing of a bent shaft.

46 Again insert a core for fixing of the camshaft.

The ruler for fixing of camshafts can tower on 1 mm over the camshaft of inlet valves. If the ruler from a final collector costs highly, it is necessary to adjust the gas-distributing mechanism turn of asterisks of camshafts. For this purpose weaken asterisks on camshafts, turn them and then again fix by the moment 22 N • m.

47 Remove a ruler for fixing of camshafts.
48 Remove accession of compressed air from the VANOS block. Fix an oil pipeline to the VANOS block with new consolidations the moment of 30 N • m. Join the socket.

49 Turn out the BMW-11 4 220 tool at a natyazhitel of a chain.

50 Turn out the chain tension piston with a new sealing ring the moment of 70 N • to m.

51 Screw a finger of a cover of a head of cylinders.

52 Establish a cover of camshafts of inlet valves.
53 Grease the interfaced surfaces between the VANOS block and a head of cylinders sealant, for example, of "Drei Bond 1209" or "Loctite Ultra Black".
54 Grease with the same sealant transitions to полукружьям a sealing surface to a cover of a head of cylinders.

55 Establish covers of a head of cylinders. Replace the damaged laying, address an accompanying illustration. At installation of laying of a cover of a head of cylinders pay special attention to the correct situation in полукружьях the face party of a head of cylinders. Evenly press out a cover the moment of 10 N • m.

56 Insert the sensor of recognition of cylinders and fix it. At damage of a sealing ring replace it.
57 Establish spark plugs, address the Section of the Spark plug.
58 Establish a final collector and a reception pipe, address the Section Removal and installation of a final collector.

Before start of the engine take out a core of provision of VMT in a flywheel. Again establish in an opening on the block of cylinders a cap.

59 Establish accession for ventilation of a case on a cover of a head of cylinders and record it.

60 Install the fan fan/coupling, address the Section Removal and installation of the fan with the viscous coupling.
61 Establish a casing of the air filter, address the Section Removal and installation of the air filter of the engine.


Model 320d (M47 engine)

 REMOVAL

The operations and instructions existing for all engines are given in the Section for engines 316i, 318i. Only the differences relating to the engine 320d are given in the present Section.

1 Remove the vacuum pump, address appropriate section.
2 Uncover a head of cylinders, address the Section Removal and installation of a head cylinders/replacement of sealing laying.

3 Record a bent shaft in the provision of VMT the BMW-11 2 300 tool or other corresponding core. For this purpose insert a core through an opening in the block of cylinders over a starter into a flywheel opening.

4 Record a natyazhitel of a chain in the compressed situation. For this purpose turn out the screw with an internal hexagon around a face wall of the block of cylinders (the shooter on an illustration) and insert a core of BMW-11 3 340 or other suitable core.

5 Turn off bolts of fastening and remove the top directing chain.
6 Turn off bolts of fastening and remove both asterisks of camshafts. At the same time hold shaft for a hexagon. To fixing of the camshaft of inlet valves HUNDRED BMWs are used by the BMW-11 6 320 tool.
7 Turn off bolts of fastening and uncover bearings of camshafts. Put them as installation. Take out camshafts.
8 Take out yokes from a head of cylinders and also put them on the engine as installation. The moments of an inhaling are given in Specifications.