Page 200 of 796
02-410000-00
1) Piston
(1) Overview
Piston assembly contains piston, #1 ring, #2
ring, oil ring, piston pin and snap ring. The
expansion energy from engine is transferred to
the crankshaft through connecting rod to
convert the linear movement to rotating energy.
(2) Layout
#1 ring
Oil ring
Snap ring
#2 ring
Material:
B2+
Skirt coating:
MoS2
Piston cooling gallery
for connecting rod
Wide bawl type (CR 16.5)
Cooling jet
Page 268 of 796

07-31543-00
1. SPECIFICATION
The engine oil filter element should be changed at the same time with the engine oil.
Regularly check the engine oil level and add the engine oil if necessary.
Remember to check the engine oil level and shorten the cycle to replace the engine oil under
severe driving conditions. -
-
Severe Driving Condition
Frequent stop-and-go traffic, extended idling, short driving distance below 6 km, driving distance
below 16 km when the outside temperature remains below freezing
Driving in a hilly or mountainous terrain, sandy, or dusty area
High load driving such as trailer towing
Taxi, patrol service or delivery service (extended idling and excessive driving with low speed) -
-
-
-
Unit Specification
Oil pump Lubrication system Gear pump, forced circulation
Type Inscribed gear
Capacity 63 L at 4,000 rpm
Relief pressure5.8 bar ± 0.3 bar
Oil filter Type Full flow/Paper element
Engine oil Specified oil SAE 5W30 (approved by MB SHEET 229.51)
Capacity (L) Min.: 4.5 L / Max.: 6.0 L
Service
intervalEU Change every 20,000 km or 12 months
(The service interval should be shortened under
severe conditions)
General Change every 15,000 km or 12 months
(The service interval should be shortened under
severe conditions)
Oil injection nozzle Type Piston
Operating pressure 1.5bar
Closing pressure 1.0bar
Oil flow 4 L/min
Oil pressure switch Permissible pressure 10bar
Initial check: 5,000km, and replenish if necessary. Shorten the service interval under severe
conditions. (EU,GEN)
Page 404 of 796

08-6
3. IGNITION SYSTEM OPERATION
This ignition system does not use a conventional distributor and coil. It uses a crankshaft position
sensor input to the Engine Control Module (ECM).
The ECM then determines Electronic Spark Timing (EST) and triggers the electronic ignition system
ignition coil.
This type of distributor less ignition system uses a "waste spark" method of spark distribution. Each
cylinder is paired with the cylinder that is opposite it (2.3L DOHC: 2 - 3 or 1 - 4, 3.2L DOHC: 1 - 6 or 2 -
5 or 3 - 4).
The spark occurs simultaneously in the cylinder coming up on the compression stroke and in the
cylinder coming up on the exhaust stroke.
The cylinder on the exhaust stroke requires very little of the available energy to fire the spark plug.
The remaining energy is available to the spark plug in the cylinder on the compression stroke. These
systems use the EST signal from the ECM to control the EST.
The ECM uses the following information: Engine load (mass air flow sensor, manifold air pressure
sensor).
Engine coolant temperature.
Intake air temperature.
Crankshaft position.
Engine speed (rpm).
1) Electronic Ignition System Ignition Coil
The Electronic Ignition (EI) system ignition coil is located on the cylinder head cover.
The double ended coils receive the signal for the ECM which controls the spark advance. Each
EI system ignition coil provides the high voltage to two spark plugs simultaneously;
3.2L DOHC
T1/1: cylinder 2 and 5
T1/2: cylinder 3 and 4
T1/3: cylinder 1 and 6
The EI system ignition coil is not serviceable and must be replaced as an assembly.
Page 554 of 796
01-33650-01
Diameter( Torque converter) 270 mm
Lockup function Yes
Gear ratios 1st 3.595
2nd 2.186
3rd 1.405
4th 1.000
5th 0.831
Reverse:
S mode / W mode3.167/1.926
Driving type 2WD(4WD)
Fluid specification Shell ATF 134
Fluid capacityapprox. 8 ℓ
Selected lever
indicationP.R.N.D Mechanical
D+/D- Electrical
Parking lock systemBrake switch(signal) → TGS lever
Reverse lock systemCAN → TGS lever
Selected lever
indicationP.R.N.D Lever position
1, 2, 3, 4, 5 CAN
Oil temperature
sensorResistance: R, D0.5 ~ 2.5 kΩ
Resistance: P, N20 kΩ
TCU EGS 52
Shift solenoid
valve(25℃)Resistance3.8 ± 0.2 Ω
Operating distance 0.2 mm
Operating current 1.5 ~ 2 A
Item Specification
Input torque 450 Nm
1. SPECIFICATIONS
W5A580(2WD) / W5A400(4WD) ▶
Page 598 of 796
04-34120-01
1. SPECIFICATIONS
Front Axle ▶
Rear Axle ▶
Description Specification
Drive shaft type CV joint
Axle housing type Build up
DifferentialType Conventional type
Gear type Hypoid Gear
Final gear reduction ratioEngine + M/T 4.55
Engine + A/T 3.54
OilCapacity 1.2 L
Specification SAE 80W / 90, API GL-5
Description Specification
Axle shaft type Semi-floating
Axle housing type Build up
DifferentialType Conventional type
Gear type Hypoid Gear
Final gear reduction ratioEngine + M/T 4.55
Engine + A/T 3.54
OilCapacity 1.5 L
Specification TOTAL-ISU EP-B 85W/90
Page 602 of 796
05-33240-01
Weight 32.4 kg (including oil)
Oil capacity 1.4 L
Oil type ATF DEXRON II or III
Location Transfer case
Major element Housing Part-time
Bolt 11EA, M8 x 1.25
Input shaft A/T: outer spline
Description Specifications
Total length 343 mm
1. SPECIFICATIONS
Page 618 of 796
07-34411-01
1. SPECIFICATIONS
DescriptionSpecification
Front Suspension Rear Suspension
Suspension typeDouble wishbone Multi-link type
Spring typeCoil spring Coil spring
Shock absorber typeReciprocating cylindrical type
(gas type)Reciprocating cylindrical type
(gas type)
Stabilizer bar typeTorsion bar type Torsion bar type
2. WHEEL ALIGNMENT
Front Wheel
AlignmentToe-in0.˚±0.10˚
Camber-0.12˚±0.50˚
Caster4.80˚±0.50˚
Rear Wheel
AlignmentToe-in0.48˚±0.15˚
Camber-1.20˚±0.50˚
Caster-
Page 621 of 796

07-6
1) Front Suspension (Double Wishbone)
Suspension is the term given to the system of springs, shock absorbers and linkages that connects a
vehicle to its wheels and allows relative motion between the two. Suspension systems serve a dual
purpose - contributing to the vehicle's road-holding/handling and braking for good active safety and
driving pleasure, and keeping vehicle occupants comfortable and reasonably well isolated from road
noise, bumps, and vibrations, etc. These goals are generally at odds, so the tuning of suspensions
involves finding the right compromise. It is important for the suspension to keep the road wheel in contac
t
with the road surface as much as possible, because all the forces acting on the vehicle do so through
the contact patches of the tires. The suspension also protects the vehicle itself and any cargo or luggage
from damage and wear.
2) Rear Suspension (Multi Link Type)
1. OVERVIEW
Double wishbone suspension is an independent
suspension design using two (occasionally
parallel) wishbone-shaped arms to locate the
wheel. Each wishbone or arm has two mounting
points to the chassis and one joint at the knuckle.
The shock absorber and coil spring mount to the
wishbones to control vertical movement. Double
wishbone designs allow the engineer to carefully
control the motion of the wheel throughout
suspension travel, controlling such parameters as
camber angle, caster angle, toe pattern, roll
center height, scrub radius, scuff and more.
The multi-link type is used for the rear
suspension to distribute the internal force (load)
applied to the link while driving. Also, the change
in camber or toe and shock load from the road
has been minimized by optimizing the link
arrangement.