engine coolant Lexus IS220d 2012 User Guide

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465
5-1. Essential information
When trouble arises
IS250/220d/200d_EE
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional, as soon
as possible.
Visible symptoms
Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is nor-
mal.)
Flat-looking tires or uneven tire wear
Engine coolant temperature gauge needle continually points
higher than normal
Audible symptoms
Changes in exhaust sound
Excessive tire squeal when cornering
Strange noises related to the suspension system
Pinging or other noises related to the engine
Operational symptoms
Engine missing, stumbling or running rough
Appreciable loss of power
Vehicle pulls heavily to one side when braking
Vehicle pulls heavily to one side when driving on a level
road

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5-2. Steps to take in an emergency
IS250/220d/200d_EE
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the automatic
air conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam
subsides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating:
Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the
engine.
If the fans are not operating:
Stop the engine and call any authorized Lexus dealer
or repairer, or another duly qualified and equipped pro-
fessional.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core
(radiator) for any leaks.
If the engine compartment
cover needs to be removed:
STEP1
STEP2
STEP3
STEP4

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529
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
Overheating
If you observe the following, your vehicle may be overheating.
The engine coolant temperature gauge enters the red zone or a loss of
power is experienced.
Steam is coming from under the hood.
CAUTION
To prevent an accident or injury when inspecting under the hood of your
vehicle
If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injury such as burns.
Keep hands and clothing away from the fans and other belts while the
engine is running.
Do not loosen the radiator cap (IS250), or the coolant reservoir cap
(IS220d and IS200d) while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
Add engine coolant if neces-
sary.
Water can be used in an
emergency if engine coolant
is unavailable.
(P. 5 4 4)
Have the vehicle checked at the nearest authorized Lexus dealer
or repairer, or another duly qualified and equipped professional,
as soon as possible.
STEP5

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5-2. Steps to take in an emergency
IS250/220d/200d_EE
NOTICE
When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too
quickly can cause damage to the engine.

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6-1. Specifications
IS250/220d/200d_EE
Cooling system
Ignition system (IS250 only)
Capacity
IS250
10.3 L (10.9 qt., 9.1 Imp. qt.)
IS220d (without power heater)
8.8 L (9.3 qt., 7.7 Imp. qt.)
IS200d (without power heater)
8.7 L (9.2 qt., 7.7 Imp. qt.)
IS220d and IS200d (with power heater)
9.0 L (9.5 qt., 7.9 Imp. qt.)
Coolant type
Use either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and non-
borate coolant with long-life hybrid organic
acid technology
Do not use plain water alone.
Spark plug
Make
GapDENSO FK20HBR11
1.1 mm (0.043 in.)
NOTICE
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning the
engine.

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Alphabetical index
IS250/220d/200d_EE
Engine
Compartment ........................405
Engine switch .......................156
Hood .....................................402
How to start the engine .........156
Identification number ...........535
If the engine will not start.....515
If you run out of fuel and
the engine stalls ..................531
Ignition switch ......................156
Overheating ..........................528
Engine compartment cover........407
Engine coolant
Capacity ................................544
Checking ...............................413
Preparing and checking before
winter .................................239
Engine coolant temperature
gauge .......................................171
Engine immobilizer system .........96
Engine oil
Capacity ................................539
Checking ...............................409
Preparing and checking before
winter .................................239
EPS ............................................224First-aid kit storage belt............ 384
Floor mat .................................. 382
Fluid
Washer ................................. 420
Fog lights
Replacing light bulbs ........... 453
Switch .................................. 190
Wattage ................................ 552
Footwell lights .......................... 351
Front fog lights
Replacing light bulbs ........... 453
Switch .................................. 190
Wattage ................................ 552
Front passenger's seat belt
reminder light ......................... 470
Front position lights
Replacing light bulbs ........... 453
Switch .................................. 186
Wattage ................................ 552
Front seats
Adjustment............................. 63
Driving position memory....... 66
Front turn signal lights
Wattage ................................ 552
Fuel
Capacity ............................... 538
Fuel gauge............................ 171
Fuel pump shut off system... 466
Gas station information ....... 576
If you run out of fuel and
the engine stalls ................. 531
Information .......................... 553
Refueling ............................... 92F

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IS250/220d/200d_EE
What to do if...
What to do if...
A tire puncturesP. 487
P. 499If you have a flat tire
The engine does not start
P. 515If the engine will not start
P. 531If you run out of fuel and the engine
stalls (IS220d and IS200d)
P. 9 6Engine immobilizer system
P. 524If the vehicle battery is discharged
The shift lever cannot be
moved out of PP. 517If the shift lever cannot be shifted
from P
The engine coolant tempera-
ture gauge enters the red zone
Steam can be seen coming
from under the hood
P. 528If your vehicle overheats
The key is lostP. 518If you lose your keys
The battery runs outP. 524If the vehicle battery is discharged
The doors cannot be lockedP. 5 8Doors
The horn begins to soundP. 102Alarm
The vehicle is stuck in mud or
sandP. 532If the vehicle becomes stuck