
ENGINE
A
ENGINE COOLING SYSTEM
SECTION CO CO
C
D
E
CONTENTS
QR25DE ON-VEHICLE REPAIR ................................ 14
. F
PRECAUTION .............................................. 2
. RADIATOR ........................................................ 14
Removal and Installation ........................................14
. G
PRECAUTIONS .................................................. 2
.
Precaution for Supplemental Restraint System COOLING FAN .................................................. 16
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Removal and Installation ........................................16
.
SIONER" .................................................................. 2
. Disassembly and Assembly ....................................16
. H
Precaution for Liquid Gasket .................................... 2 .
WATER PUMP .................................................. 18
PREPARATION ........................................... 4
. Removal and Installation ........................................18
.
I
PREPARATION .................................................. 4
. THERMOSTAT AND THERMOSTAT HOUS-
Precautions For High-Voltage System ..................... 4 . ING .................................................................... 20
Special Service Tool ................................................ 4
. Removal and Installation ........................................20
. J
Commercial Service Tool ......................................... 4
.
WATER CONTROL VALVE .............................. 22
FUNCTION DIAGNOSIS .............................. 6
. Removal and Installation ........................................22
.
K
COOLING SYSTEM ........................................... 6
. SERVICE DATA AND SPECIFICATIONS
Cooling Circuit .......................................................... 6
. (SDS) ........................................................... 24
.
Schematic ................................................................ 7
. L
SERVICE DATA AND SPECIFICATIONS
OVERHEATING CAUSE ANALYSIS ................. 8
. (SDS) ................................................................. 24
Troubleshooting Chart .............................................. 8
. Capacity ..................................................................24
. M
Thermostat .............................................................24
.
ON-VEHICLE MAINTENANCE ................... 10
. Water Control Valve ...............................................24 .
ENGINE COOLANT ..........................................10
. Radiator ..................................................................24
.
N
System Inspection .................................................. 10
.
Changing Engine Coolant ...................................... 11
.
O
P
Revision: May 2007 CO-1 2007 Altima Hybrid
PRECAUTIONS
< PRECAUTION > [QR25DE]
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000001501520
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING: