Mazda2003–2009Technical specifications

3 1.6: Technical specifications

Workshop data for the 1.6-litre petrol (engine code Z6). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Common faults & fixes

Summary

Match the engine code (Z6) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Mazda
Model: 3
Years: 2003–2009
Fuel: Petrol
Engine code: Z6

Performance & efficiency

Power: 77 kW (105 hp)
Engine size: 1,596 cc
Cylinders: 4 · DOHC
Compression ratio: 10.0:1
Fuel system: Mazda

Fluids & capacities

Engine oil (with the filter): 3.9 litres

All 115 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/DOHC
Capacity (Fiscal) cc	1596
Compression ratio :1	10,0
Suitable for unleaded petrol	Yes
Minimum octane rating RON	95
Ignition system Make	Mazda
Ignition system Description	Map-DI
Trigger location	Cam/Crankshaft
Fuel system Make	Mazda
Fuel system Type	EGI
Fuel system Description	MFI-s
Air metering Type	Mass
Combined ignition and fuel ECM	Yes
Diagnostic socket	Yes

Ignition system

Ignition coil supply voltage + with ballast V	12,0

Firing order

The firing order for the Mazda 3 1.6 (2003–2009) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Mazda 3 1.6 (2003–2009) are 0,27-0,33 mm inlet and 0,27-0,33 mm exhaust, measured cold.

Valve clearance - INLET mm	0,27-0,33 cold
Valve clearance - EXHAUST mm	0,27-0,33 cold

Engine oil & fluids

Engine oil

The Mazda 3 1.6 (2003–2009) takes 3.9 litres of engine oil with the filter.

See the reference table for the complete engine oil entries and their conditions.

Manual gearbox

See the reference table for the complete manual gearbox entries and their conditions.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	➞40°C
Engine oil grade SAE	5W-20
Engine oil classification API/ACEA	SL/A3
Ambient temperature range	➞40°C
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	SL/A3, A5
Ambient temperature range	-25°C➞45°C
Engine oil grade SAE	10W-40
Engine oil classification API/ACEA	SL/A3
Engine with filter(s) litres	3.9
Other lubricants and capacities
Manual transmission oil grade SAE	—
Manual transmission oil grade
Manual transmission litres	3.0
Automatic transmission fluid Type	ATF M-V
Automatic transmission (dry fill) litres	7.0
Brake fluid Type	DOT 3/4
Power steering fluid Type	ATF M-III
Power steering fluid litres	1.2

Brakes & wear limits

Brake disc thickness

Brake discs on the Mazda 3 1.6 (2003–2009) are replaced at a minimum thickness of 23 mm (ventilated) front and 9 mm rear.

Minimum disc thickness for replacement - ventilated Front	23 mm
Minimum disc thickness for replacement Rear	9 mm

Brake disc and drum dimensions

Disc thickness variation Front	0,015 mm
Disc thickness variation Rear	0,015 mm
Disc runout Front	0,05 mm
Disc runout Rear	0,05 mm
Minimum pad thickness Front	2 mm
Minimum pad thickness Rear	2 mm
Parking brake travel No. of notches	3-6

Service & electrical

Battery

The Mazda 3 1.6 (2003–2009) uses a 12 V, 52 Ah battery.

Battery V/RC(Ah)	12 (52)

Tuning and emissions

Idle speed and ignition timing
Tuning conditions	—
Ignition timing - basic BTDC °Engine/rpm	10±1/740 Not adjustable
Ignition timing - alternative °Engine/rpm	AT=10±1/750 Not adjustable
Ignition advance checks °Engine/rpm	ECM Controlled
Idle speed rpm	690±50
Idle speed - alternative rpm	AT=750±50
Oil temperature °C	80
CO level at idle speed - tailpipe Vol. % CO	0,5 Max Not adjustable
HC level at idle speed ppm	100
CO2 level at idle speed Vol. % CO2	14,5-16
O2 level at idle speed Vol. % O2	0,1-0,5

Starting and charging

Maximum cranking amps A	140-172
Alternator output A/V/rpm	56/14/2500

Service checks and adjustments

Compression pressure bar	10,3-14,7
Oil pressure bar/rpm	3,3-3,8/3000
Radiator cap bar	0,90-1,10
Thermostat opens °C	80-84

Fuel system

System pressure bar	3,5-4,1
Engine coolant temperature (ECT) sensor Ohm/°C	287-349/80
Injector Ohm	13,8
Idle air control (IAC) valve/idle speed control (ISC) actuator Ohm	8,8-10,6
Lambda sensor (Oxygen) heater Ohm	5,0-6,8

Spark plugs

Spark plugs Original equipment	Denso
Spark plug Type	SK16PR-E11
Electrode gap mm	1,0-1,1

Tightening torques

Cylinder head
Cylinder head instructions	—
Maximum bolt length	130,2 mm
Tighten	20±2 Nm
Tighten	90±5°
Tighten	90±5°
Other engine tightening torques
Main bearings Stage 1	—
View more information	—
Main bearings
Big end bearings Stage 1	—
Big end bearings
Oil pump to cylinder block	23±3 Nm
Sump bolts	10±1 Nm
Sump drain bolt	36±5 Nm
Flywheel/driveplate	100±3 Nm
Clutch pressure plate	22±4 Nm
Crankshaft pulley/damper centre bolt	162±5 Nm
Camshaft sprocket/gear	55±5 Nm
Camshaft carrier/cap	13 Nm
Camshaft/rocker cover	9±1 Nm
Inlet manifold to cylinder head	23±3 Nm
Exhaust manifold to cylinder head	43±3 Nm
Exhaust downpipe to manifold	45±6 Nm
Water pump	22±3 Nm
Spark plugs	18±4 Nm
Fuel rail	21±4 Nm
Crankshaft position (CKP) sensor/engine speed (RPM) sensor	10±1 Nm
Camshaft position (CMP) sensor	10±1 Nm
Engine coolant temperature (ECT) sensor	20±3 Nm
Lambda sensor (Oxygen)	39±10 Nm
Knock sensor (KS)	27±7 Nm
Engine oil pressure switch	15±3 Nm
Oil filter	14±2 Nm
Chassis tightening torques
Front hub	—
Front hub
Rear hub - wheel bearing housing bolts	49-66 Nm
Bolts/nuts
Steering wheel	40-55 Nm
Steering rack/box mounting	75-105 Nm
Steering track rod end	37-50 Nm
Brake caliper to carrier Front	25-30 Nm
Brake caliper/carrier to hub Front	102-118 Nm
Brake caliper to carrier Rear	25-30 Nm
Brake caliper/carrier to hub Rear	60-76 Nm
ABS sensor Front	4-6 Nm
ABS sensor Rear	4-6 Nm
Road wheels	103±15 Nm

Air conditioning

No. of AC service connectors	2
Air conditioning restrictor type	Expansion valve
Compressor clutch/magnetic coupling	Yes
Compressor variable displacement solenoid	No
Air conditioning refrigerant Type	R134a
Air conditioning refrigerant quantity grams	500±25
Air conditioning oil group	PAG
Air conditioning oil Type	Atmos GU 10
Air conditioning oil quantity cm³	125
Air conditioning oil viscosity ISO	46

Frequently asked questions

What is the firing order of the Mazda 3 1.6?

The firing order for the Mazda 3 1.6 (2003–2009) is 1-3-4-2.

How much oil does the Mazda 3 1.6 take?

The Mazda 3 1.6 (2003–2009) takes 3.9 litres of engine oil with the filter. See the reference table for the complete engine oil entries and their conditions.

What are the valve clearances for the Mazda 3 1.6?

Valve clearances for the Mazda 3 1.6 (2003–2009) are 0,27-0,33 mm inlet and 0,27-0,33 mm exhaust, measured cold.

What is the minimum brake disc thickness for the Mazda 3 1.6?

Brake discs on the Mazda 3 1.6 (2003–2009) are replaced at a minimum thickness of 23 mm (ventilated) front and 9 mm rear.

What battery does the Mazda 3 1.6 use?

The Mazda 3 1.6 (2003–2009) uses a 12 V, 52 Ah battery.