cylinder location BMW 540i 1999 E39 User Guide

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11 6-9
Cvlinder Head and valvetrain1
4 Remove ignition coils and spark plugs.
V-8 models: remove mounting nuts (arrows) from wiring har-
ness ducting.
< V-8 models: disconnect fuel injector electrical connectors
from injectors:
Pry one corner of wire
loclc clip (arrow) on first injector.
Repeat for all injectors.
Lift wire ducts off and set aside.
- V-8 models: disconnect battery jump start post terminal from
left cylinder head cover.
- 6-cylinder models: remove oil filler cap and unclip vent con-
nection from cylinder head cover.
- Remove cylinder head cover mounting fasteners and re-
move cylinder head cover(~).
NOTE-
The cylinder head cover mounting bolt insulators and gas-
Icets should be reinstalled in their original locations. Make
note of their arrangement
during removal.

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Cylinder Head and Valvetrain
4 Secure hydraulic lifters in lifter bores using BMW special tool
11 3 250, or remove lifters using a magnetic pick-up tool.
4 Remove camshaft bearing carrier from cylinder head.
CA UTION-
Camshaftbearing carriers must be reinstalledin their original
/ locations (E for ir;fal NOTE-
Do not let hydraulic lifters fall out as the camshaft carrier is
removed.
Hydraulic lifters should be stored in an upright position.
Used hydraulic lifters
must be replaced into original lifter
bores.
Camshafts and lifters, installing
(M52 Engine)
Lubricate camshafts, camshaft carriers, bearing caps, hy-
draulic liflers, friction washers, splined shafts and spline hubs
with assembly lubricant before installation.
Make sure
the cranltshaft, which had been rotated approxi-
mately
30" opposite the direction of engine rotation from
TDC, is still in thatposition before lowering the
camshaffs into
position. All pistons must be out of TDC position to prevent
valve/piston interference when the camshalts are installed.
Before installing camshaft carriers, examine bearing bores
(arrows) on hydraulic lifter bores for signs of wear.

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I_
-.
Cylinder Head and Valvetrain
Remove torx
(arrows). screws
from
exhausl
: camshaft : sprocket
Lift off exhaust and intalte sprockets together with secondary
chain, thrust spacer
(A) from exhaust camshaft, and splined
shaft (B) from intake camshaft.
CAUTIOf+
Splined shafts share the same part number for both intake
and exhaust camshafts. Used splined shafts must be rein-
stalled in their
oriqinal locations.
Place intalte and exhaust sprockets in
BMW special tool 11 6
/ 180. Position spline gap on intake sprocket (arrow) as
shown.
4 Remove exhaust camshaft splined sleeve (A) and shaft (B).

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Cylinder Head and Valvetrain
NOTE-
The camshaft bearing caps are coded with a letter and a
number. For example, "A
1" is the first exhaust camshaft
bearing cap
at the front of the engine, and "El "is the intake
camshaft bearing cap at the front of the engine.
-. -
The camshafts are stamped with a code letter - "E for the
intake side and
'X" for the exhaust side.
"E is for Einlap. (German for intake) and 'XA7s for Auspuff.
(German for exhaust).
- Repeat procedure for exhaust camshaft
< Secure hydraulic lifters in lifter bores using BMW special tool
11 3 250, or remove lifters using a magnetic pick-up tool.
I CAUTION-
Used liydraulic lifters must be reinstalled in original lifter
1 bores.
4 Remove lower camshaft bearing carriers from cylinder head.
CAUTION- Camshaft bearing carriers must be reinstalled in their original
locations
(E for intalce and A for exhaust).
NOTE- Do not allow hydraulic lifters to fall out of camshaft carriers.
Hydraulic lifters should be stored in an upright position.
Camshafts and lifters, installing (M52TU and M54 engine)
Lubricate camshafts, camshaft carriers, bearing caps, hy-
draulic lifters, friction washers, splined shafts and
spline hubs
with assembly
lubricant before installation.
CAUTION-
Make sure the crankshaft, which had been rotated approxi-
mately
30" opposite the direction of engine rotation from
TDC, is
stillin thatposition before lowering the camshafts into
position. Allpistons must be out of
TDCposition to prevent
valve/piston inteiference when the carnshafis are installed.
- Lift timing chain and place exhaust cam onto exhaust cam-
shaft carriers. Place
intake camshaft on camshaft carrier.

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Cylinder Head and Valvetrain
< Disconnect fuel injector electrical connectors from injectors.
Pry corner of wire lock clip (arrow) on first injector.
* Repeat for all injectors.
Lift wiring ducts off and set aside.
4 Remove right and left side ignition coil mounting nuts (ar-
rows) and coils.
NOTE-
Male note of location for ground straps (arrow A).
- Remove spark plugs.
- Disconnect positive (+)jumper junction from top of lefl cylin-
der head cover.
4 Remove retaining nuts (arrows) and remove oil lines from
left and right cylinder heads.

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11 6-46
/cylinder Head and Valvetrain
I I Camshafts, installing, right cylinder head (M62 engine)
I
1
A: / Camshafts are marked at rear. Install camshafts into cam-
shaft bearing saddles of cylinder heads.
Intake camshaft for right cylinder head
(14) is labelled
E 1-4.
Exhaust camshaft for right cylinder head (1-4) is labelled
A 1-4.
4 Rotate camshafts so that recesses in Intake and exhaust
camshafts
polnt upward 30 to 40' above seal~ng surface for
valve cover (arrows).
4 Bearing caps are marked with a code for location.
NOTE-
The camshaft caps are stamped with a code letter - "E" for
the intake side and
'N" for the exhaust side. Number code is
forposition on head, with number
7 being the front bearing
cap.
CAUTION--
Do not mix up camshafi bearing caps between cylinder
banks.

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1 16-48
/Cylinder Head and Valvetrain
Cylinders
1-4
11 2 445 11 2441
4 Secure camshafts in TDC position using BMW special tools:
Align camshafts with open-end
27 mm wrench so BMW
special tools fit on cylinder heads without gaps. Secure
tool using number 4 cylinder spark plug hole.
Do not damage the cylinder head. If
necessa& machine
open-end wrench to fit.
Left side (cyl.
5-8) camshafts, installing (M62 engine)
4 Camshafts are marked for location at rear. Install camshafts
into camshaft bearing saddles of cylinder heads, noting the
following:
Intake camshaft for left cylinder head
(5-8) is labelled
E 518.
Exhaust camshaft for left cylinder head (5-8) is labelled
A
518.
4 Rotate camshafts so that recesses in intake and exhaust
camshafts point downward 30 to 40" (arrows) from cylinder
head cover sealing surface.

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- -
Cylinder Head and valvetrain1
4 Bearing caps are marked with a code for location.
NOTE-
The camshaft caps are stamped with a code letter - "E for
the intake side and
'HA" for the exhaust side. Number code is
for position on head, with number
1 being the front bearing
cap.
CA UTIOI\C
Do not mix up camshaft bearing caps.
Install and evenly tighten down bearing cap nuts in
'I2 turn
steps starting at number
1.
Tightening torque
Camshaft bearing cap 14 Nrn (10 ft-lb)
4 Install BMW special tool 11 3 430 on camshaft.

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Camshaft Timina chain1
- Remove viscous clutch cooling fan. See 170 Radiator and
Cooling
System.
CA UTlOEIC
The radiator cooling fan nut (32mm wrench) has left- hand
threads.
.
< Remove engine trim covers:
Pry out plastic trim caps (arrows).
. Remove cover fasteners and covers.
4 Remove ignition coils:
0 Disconnect ignition coil electrical harness connectors
Remove
coil mounting fasteners and remove coils.
Remove spark plugs.
NOTE-
Make note of ignition coil ground strap locations.
Disconnect VANOS electrical harness connector
(A) and oil
line fitting
(B) from VANOS control unit.
NOTE-
Wrap the VANOS oil line fitting with a shop rag to absorb
leaking oil.
- Disconnect cranltcase breather by squeezing at arrows,
- Remove cylinder cover mounting fasteners and remove
cylinder head cover.
NOTE-
The cylinder head cover mounting bolt insulators and gas.
kets should be reinstalled in their original positions. Make
note of their arrangement during removal.

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Camshaft Timing Chain LL. .- - - - I
4 Remove left and right side ignition coils and spark plugs:
- Disconnect electrical harness connectors at ignition coils
(A).
Remove left and right side ignition coil mounting fasteners
and coils.
NOTE-
Make note of location of ground strap (arrow).
Remove sparlc plugs.
- Remove positive (+) terminal cable from left cylinder head
cover.
- Unbolt cable ducts from fuel rail at left and right sides.
Disconnect fuel injector electrical connectors from injectors:
Pry corner of wire
loclc clip (arrow) to release connector.
Repeat for remaining injectors.
* Lift off wiring ducts.