low oil pressure LAMBORGHINI GALLARDO 2009 Workshop Manual
Page 342 of 1659
5
L714 01 28 00
Fig.6
AB
Fig.7
B
B
A
A
® Automobili Lamborghini S.p.A.
/ H S U R F H G X U H H O H L Q I R U P D ] L R Q L S X E E O L F D W H G L V H J X L W R V R Q R V W U H W W D P H Q W H F R Q ¿ G H Q ] L D O L H U L Y R O W H H V F O X V L Y D P H Q W H D O O D 5 H W H ' H D O H U H 6 H U Y L F H 3 R L Q W $ X W R U L ] ] D W L / D P E R U J K L Q L 7 X W W L L G L U L W W L G ¶ D X W R U H V R Q R S U R S U L H W j
G L $ X W R P R E L O L / D P E R U J K L Q L 6 S $ L Q E D V H D O O D O H J J H V X L G L U L W W L G ¶ D X W R U H 7 X W W L L F D S L W R O L 3 ' ) G L F X L V L F R P S R Q J R Q R L P D Q X D O L R I ¿ F L Q D : ( % G H V F U L W W L G L V H J X L W R V L E D V D Q R V X O O H L Q I R U P D ] L R Q L G L V S R Q L E L O L D O
P R P H Q W R G H O O D S X E E O L F D ] L R Q H & R Q U L V H U Y D G L D J J L R U Q D P H Q W R H P R G L ¿ F K H 6 R Q R Y L H W D W H O D U L V W D P S D O D U L S U R G X ] L R Q H O ¶ L Q R O W U R D S H U V R Q H Q R Q D X W R U L ] ] D W H H R D W H U ] H S H U V R Q H O D W U D G X ] L R Q H D Q F K H S D U ] L D O H
V H Q ] D O ¶ D X W R U L ] ] D ] L R Q H V F U L W W D G D S D U W H G L $ X W R P R E L O L / D P E R U J K L Q L 6 S $
Fuel pump
There is only one electric fuel pump (
A-Fig.6) and it is in the right tank. This pump is controlled by an ECU ( B-Fig.6)
which in turn is controlled by the master control unit.
The pump has an operating pressure ranging between 4 and 6 bar, depending on the various operating conditions
of the vehicle.
The pump sends the fuel to the two high pressure pumps (which are mechanical) that compress the fuel and take the pressure to a value varying from 120 to 140 bar, according to vehicle operation.
Both the high and low pressure pumps are monitored by two sensors installed on the respective lines to prevent overpressure problems. Linear phase transformers
Linear phase transformers allow the engine phase to vary according to the torque required in order to always have optimum phasing.
In this version they are always enabled, and the phasing follows different maps according to the load and the atmospheric conditions. Piloting is performed by a solenoid valve ( A-Fig.7), which makes the oil pass inside the phase-changing gear.
This operation is managed by the injection control units that also receive the position of the camshaft through the
Hall effect sensors ( B-Fig.7) mounted on the camshafts:
• two sensors for the exhaust (one per cylinder bank)
• two sensors for the intake (one per cylinder bank)
Page 344 of 1659
7
L714 01 28 00
Fig.7
A
B
C
C
5
F
'
GH
GH
QL
1
M
O 3
3
,
(
® Automobili Lamborghini S.p.A.
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G L $ X W R P R E L O L / D P E R U J K L Q L 6 S $ L Q E D V H D O O D O H J J H V X L G L U L W W L G ¶ D X W R U H 7 X W W L L F D S L W R O L 3 ' ) G L F X L V L F R P S R Q J R Q R L P D Q X D O L R I ¿ F L Q D : ( % G H V F U L W W L G L V H J X L W R V L E D V D Q R V X O O H L Q I R U P D ] L R Q L G L V S R Q L E L O L D O
P R P H Q W R G H O O D S X E E O L F D ] L R Q H & R Q U L V H U Y D G L D J J L R U Q D P H Q W R H P R G L ¿ F K H 6 R Q R Y L H W D W H O D U L V W D P S D O D U L S U R G X ] L R Q H O ¶ L Q R O W U R D S H U V R Q H Q R Q D X W R U L ] ] D W H H R D W H U ] H S H U V R Q H O D W U D G X ] L R Q H D Q F K H S D U ] L D O H
V H Q ] D O ¶ D X W R U L ] ] D ] L R Q H V F U L W W D G D S D U W H G L $ X W R P R E L O L / D P E R U J K L Q L 6 S $
Sensor
A
Speed sensor
B * H D U V S R V L W L R Q V H Q V R U V
C Secondary air pressure sensors
' Low fuel pressure sensor output
( Wiv pressure sensor output
F Oil pressure sensor output
G CAM sensors output
H Exhaust phase sensors output
, Intake phase sensors output
L Coolant temperature sensor output
M Air temperature sensor
1 A/C sensor
O Clutch pump sensor
3 $ , 5 % $ * V H Q V R U V
Q Coolant level sensor
5 Oil level and temperature sensor
Page 406 of 1659
2
L714 01 42 00
AB 'C
( ) *H
I
) L J
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/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
7 + ( + < ' 5 $ 8 / , & & 2 0 3 2 1 ( 1 7 6 / $ < 2 8 7 $ 5 2 8 1 ' 7 + ( * ( $ 5 % 2 ;
A.Gear sensor
B. Gear actuator
C. Low pressure pipe
' Gear and clutch valves
( High pressure pipe
) Oil tank
* Accumulator
H. Pressure sensor
I. DC motor/Hydraulic pump
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L714 03 01 00
Fig.1
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
* H D U E R [ W H F K Q L F D O G D W D • Fast engagement 6 gear ratios + reverse gear
• 6 \ Q F K U R Q L V H U V Z L W K À R D W L Q J U L Q J V
• Meshing clearance (all gears) 0.11 ÷ 0.03 mm
• Lubrication with gear pump
• Net Weight: 80 Kg
• Oil quantity: 4 Lt
• Number teeth: 25
• Gearbox ratios:
6 7 ' & 2 0 ) 2 5 7
(Comfort Package)
1st gear 1 : 3,313 1 : 2,563
2nd gear 1 : 2,053 1 : 1,850
3rd gear 1 : 1,458 1 : 1,423
4th gear 1 : 1,138 1 : 1,138
5th gear 1 : 0,939 1 : 0,939
6th gear 1 : 0,784 1 : 0,806
Reverse 1 : 2,813 1 : 2,813
countershaft/front differential input shaft 1 : 1,409
countershaft/rear differential input shaft 1 : 1,240
• 0 D Q X D O W \ S H with cable control
• ( * H D U W \ S H robotised with electronically managed electro-hydraulic control and 4 function modes: normal,
automatic, sport and low adherence.
Hydraulic circuit pressure: approx. 40 – 50 bar
Valve trigger pressure approx. 90 bar
System capacity (000300)
Page 669 of 1659
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L714 03 21 03
) L J
A
) L J ) L J
C
%
%
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
) ' L V D V V H P E O L Q J W K H 6 & D P D V V H P E O \ R L O S D Q 3 U H O L P L Q D U \ R S H U D W L R Q V • Disassemble the E-gear actuator 3 2 , 1 7 % .
' L V D V V H P E O L Q J W K H S D Q 1. Cut the low pressure pipe ( $ ) L J ).
2. Loosen the four screws ( % ) L J ) securing the oil pan.
3. Remove the pan ( & ) L J ).
3 R V L W L R Q D V X L W D E O H F R Q W D L Q H U W R F R O O H F W D Q \ U X Q R I I R L O
Page 1448 of 1659
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L714 10 90 00
Fig.13
A
B
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
Hydraulic circuit discharge (Routine 5)
1 R W H
Routine 5 is performed when:
• the E-gear oil level is checked
• gearbox is replaced
• the E-gear kit is replaced
• Turn the ignition key to OFF and wait about one minute to allow the control unit to turn itself off, then turn the
key back to ON.
• Connect the computer to the diagnosis outlet OBDII
• Select routine 5 inside the block number ( A-Fig.13).
• Start the connection (
) and press the start push-button ( B-Fig.13).
Routine 5 empties the pressure inside the E-gear circuit.
line 1 displays activation of the solenoid valve:
0 = not activated
1 = activated
line 2 displays the pressure value (during the pressure release phase, it continuously drops until it reaches
value 0)
line 3 displays the clutch status:
1 = activated
0 = not activated
line 4 displays the status of the hydraulic circuit:
1 = activated
0 = not activated
When the pressure reaches 0 bar, you can work on the circuit without risking pressure leaks.
1 R W H
Work on the circuit with the key OFF. If you turn the ignition key to ON, the system automatically brings pressure back inside the circuit.
Page 1449 of 1659
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L714 10 90 00
Fig.14
A
B
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
Hydraulic circuit bleeding (Routine 6)
1 R W H
Routine 6 is performed when:
• the clutch circuit has to be bled (e.g. if the thrust bearing is replaced)
• Turn the ignition key to OFF and wait about one minute to allow the control unit to turn itself off, then turn the
key back to ON.
• Connect the computer to the diagnosis outlet OBDII
• Connect the pipe to the gearbox bleeding point
• Select routine 6 inside the block number ( A-Fig.14).
• Start the connection (
) and press the start push-button ( B-Fig.14).
Routine 6 lets you bleed the clutch circuit.
line 1 displays the opening and closing of the bleed valve (opens/closes it 30 times)
0 = not activated
1 = activated
line 2 displays the pressure value
line 3 displays the clutch status:
1 = activated
0 = not activated
line 4 displays the status of the hydraulic circuit:
1 = activated
0 = not activated
1 R W H
Every time the clutch is bled it is then necessary to repeat Routine 5 in order to re-establish the correct oil
level.
Page 1494 of 1659
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L714 10 90 00
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
134 Temperatures
Oil temperature
instrument panel W R O F Ambient temperature
instrument panel
W X P F Intake air temperature:
W D Q V O L Q Coolant temperature W P R W O L Q
[°C] [°C] [°C] [°C]
min: 0
max: 150 min: - 40
max: 60min: Outside temperature
max: 115 min: 80
max: 115
) D Q F R Q W U R O G L V S O D \ L Q 0 D V W H U R Q O \
Fan 1 control pulsing rate W Y O X H V
Fan 2 control pulsing rate
W Y O X H V
[%] [%]
min: 0
max: 100 min: 0
max: 100
136 Fan control relays
Extra water pump % B ] Z S
Display in Master only Fan coasting % B Q O V J O V
Display in Master only
[Text ] [Text ]
Pump ON
Pump OFF On
Off
137 Air conditioning requirements
Air conditioning availability % B Q D F Air conditioner compres-
sor % B N R H Air conditioning system pressure
S N R G U F Air conditioning system fan request W Y O X H V V F
Text Text [bar] [%]
A/C-LowA/C-High Compr. ON
compr: OFFmin: 0
max: 40 min: 0
max: 100
7 K H U P R V W D W G L D J Q R V L V V K R U W W U L S F D Q Q R W E H P D G H ' L V S O D \ L Q 8 6 Y H U V L R Q R Q O \
Engine cranking tempera-
ture W P V W Mean engine air mass
P O P G W K P Mean engine speed
Y I P G W K P Result 1053
[°C] [g/s] [km/h] Text Test ON
Test OFF 6 \ V W R N
Syst. not okBreakage