2003 NISSAN X-TRAIL drain bolt

HEATER & COOLING UNIT ASSEMBLY
ATC-131
C
D
E
F
G
H
I
K
L
MA
B
AT C

HEATER & COOLING UNIT ASSEMBLYPFP:27110
Removal and InstallationEJS000UT
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge refrigerant.
2. Drain coolant from cooling system. Refer to CO-9, "
Changing Engine Coolant" for QR engine or CO-31,
"Changing Engine Coolant" for YD engine.
3. Disconnect two heater hoses from heater core pipe.
4. Remove mounting bolt from low-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5. Remove the blower unit. Refer to ATC-125, "
BLOWER UNIT" .
6. Remove clips of vehicle harness from steering member.
7. Remove mounting nuts, and then remove instrument stay.
8. Remove mounting bolts from heater & cooling unit.
RJIA0060E
RJIA0061E
RJIA2444E

MA-28
ENGINE MAINTENANCE (YD22DDTI)

A/C COMPRESSOR BELT
1. Remove RH engine undercover.
2. Loosen idler pulley lock nut (A).
3. Turn adjusting bolt (B) to adjust.

Refer to MA-27, "Checking Drive Belts" .
4. Tighten lock nut (A).
ALTERNATOR AND WATER PUMP BELT
1. Loosen adjusting lock nut (C).
2. Loosen alternator fixing bolts (D) (each on front and rear).
3. Turn adjusting bolt (E) to adjust.

Refer to MA-27, "Tension Adjustment" .
4. Tighten nut (C) and bolt (D) in this order.
Changing Engine CoolantELS000CD
WARNING:

To avoid being scalded, never change the engine coolant when the engine is hot.

Wrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn
to release built-up pressure. Then turn the cap all the way.
DRAINING ENGINE COOLANT
1. Remove engine undercover.
2. Open radiator drain plug at the bottom of radiator, and remove
radiator cap.
NOTE:

Be careful not to allow engine coolant to contact drive belts.

Cover the exhaust tube heat shield to prevent from splashing
engine coolant.
When draining all the engine coolant in the system, also perform the following steps.Nut A:
: 31 - 39 N-m (3.1 - 4.0 kg-m, 23 - 28 ft-lb)
PBIC1252E
Nut C:
: 19 - 24 N-m (1.9 - 2.5 kg-m, 14 - 18 ft-lb)
Bolt D:
: 44 - 57 N-m (4.4 - 5.9 kg-m, 32 - 42 ft-lb)
PBIC0236E

HEATER UNIT
MTC-27
C
D
E
F
G
H
I
K
L
MA
B
MTC

HEATER UNITPFP:27100
Removal and InstallationEJS001F9
REMOVAL
1. Drain coolant from cooling system. Refer to CO-9, "Changing Engine Coolant" for QR engine or CO-31,
"Changing Engine Coolant" for YD engine.
2. Disconnect two heater hoses from heater core pipe.
3. Remove instrument panel. Refer to IP-11, "
Removal and Installation" .
4. Remove blower unit. Refer to ATC-125, "
BLOWER UNIT" .
5. Remove clips of vehicle harness from steering member.
6. Remove mounting nuts, and then remove instrument stay.
7. Remove mounting bolts from heater (& cooling) unit.
RJIA0060E
RJIA0061E
RJIA2444E