Engine & identification
Vehicle identification
| No. of cylinders Type | 4/DOHC |
|---|---|
| Capacity (Fiscal) cc | 1999 |
| Compression ratio :1 | 10,8 |
| 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/MAP |
| Combined ignition and fuel ECM | Yes |
| Diagnostic socket | Yes |
Ignition system
| Ignition coil Make | Mazda |
|---|---|
| Ignition coil supply voltage + with ballast V | 12,0 |
| Distributor (ECM) Make | (Mazda) |
Firing order
The firing order for the Mazda 6 2.0 (2005–2007) is 1-3-4-2.
| Firing order | 1-3-4-2 |
|---|
Valve clearances
Valve clearances for the Mazda 6 2.0 (2005–2007) are 0,22-0,28 mm inlet and 0,27-0,33 mm exhaust, measured cold.
| Valve clearance - INLET mm | 0,22-0,28 cold |
|---|---|
| Valve clearance - EXHAUST mm | 0,27-0,33 cold |
Engine oil & fluids
Engine oil
The Mazda 6 2.0 (2005–2007) takes 4.3 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.
Coolant
The listed total cooling-system capacity is 7.5 litres.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | ➞40°C |
| Engine oil grade SAE | 5W-20, 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, A5 |
| Engine with filter(s) litres | 4.3 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | — |
| Manual transmission oil grade | |
| Manual transmission litres | 2,9 6sp=3,0 |
| Automatic transmission fluid Type | — |
| Automatic transmission fluid | |
| Automatic transmission (drain & refill) litres | — |
| Automatic transmission fluid - drain and refill | |
| Automatic transmission (dry fill) litres | — |
| Cooling system - total capacity litres | 7.5 |
| Brake fluid Type | DOT 3/4 |
| Power steering fluid Type | ATF M-III |
| Power steering fluid litres | 0,8 AT=0,9 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Mazda 6 2.0 (2005–2007) are replaced at a minimum thickness of 23 mm (ventilated) front and 8 mm rear.
| Minimum disc thickness for replacement - ventilated Front | 23 mm |
|---|---|
| Minimum disc thickness for replacement Rear | 8 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 6 2.0 (2005–2007) uses a 12 V, 75 Ah battery.
| Battery V/RC(Ah) | 12 (75) |
|---|
Tuning and emissions
| Ignition timing - basic BTDC °Engine/rpm | 8/650±50 Not adjustable |
|---|---|
| Ignition advance checks °Engine/rpm | ECM Controlled |
| Idle speed rpm | 650±50 Not adjustable |
| 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 |
| Increased idle speed for CO test rpm | 2500-2800 |
| CO content at increased idle speed Vol. % | 0,3 |
| Lambda at increased idle λ | 0,97-1,03 |
Starting and charging
| Alternator output A/V/rpm | 90/13,5/2000 |
|---|
Service checks and adjustments
| Compression pressure bar | 12,0-17,2 |
|---|---|
| Oil pressure bar/rpm | 3,4-5,9/3000 |
| Radiator cap bar | 1,10-1,40 |
| Thermostat opens °C | 80-84 |
Fuel system
| System pressure bar | 3,75-4,5 |
|---|---|
| Engine coolant temperature (ECT) sensor Ohm/°C | 3650-4020/80 |
| Injector Ohm | 11,4-12,6 |
| Lambda sensor (Oxygen) heater Ohm | — |
Spark plugs
| Spark plugs Original equipment | NGK |
|---|---|
| Spark plug Type | ILTR5A-13G |
| Electrode gap mm | 1,25-1,36 |
| Spark plugs Make | NGK |
| Spark plug Type | ILTR5A-13G |
| Electrode gap mm | 1,25-1,36 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolt torque for the Mazda 6 2.0 (2005–2007) is 5 Nm.
| Cylinder head | |
|---|---|
| Maximum bolt length | 146,5 mm |
| Tighten | 5 Nm |
| Tighten | 15±2 Nm |
| Tighten | 45±1 Nm |
| Tighten | 90±2° |
| Tighten | 90±2° |
| Cylinder head instructions | — |
|---|---|
| Other engine tightening torques | |
| Main bearings Stage 1 | — |
| View more information | — |
| Main bearings | |
| Big end bearings Renew bolts/nuts | Yes |
| Big end bearings Stage 1 | 29±3 Nm |
| Big end bearings | |
| Big end bearings Stage 2 | 90°±10° |
| Oil pump to cylinder block | 1)10±2 Nm 2)20±3 Nm |
| Sump bolts | — |
| Sump bolts | |
| Sump drain bolt | 35±5 Nm |
| Flywheel/driveplate | 112±4 Nm |
| Bolts/nuts | |
| Clutch pressure plate | 29±4 Nm |
| Crankshaft pulley/damper centre bolt | 100±4 Nm+90°±3° |
| Camshaft sprocket/gear | 72±2 Nm |
| Camshaft carrier/cap | 1)7±2 Nm 2)16±2 Nm |
| Camshaft/rocker cover | 9±1 Nm |
| Inlet manifold to cylinder head | 10±1 Nm |
| Exhaust manifold to cylinder head | 54±10 Nm |
| Exhaust downpipe to manifold | 45±7 Nm |
| Water pump | 10±2 Nm |
| Spark plugs | 12±2 Nm |
| Fuel rail | 25±5 Nm |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor | 7±1 Nm |
| Camshaft position (CMP) sensor | 7±1 Nm |
| Engine coolant temperature (ECT) sensor | 12±2 Nm |
| Lambda sensor (Oxygen) | 39±10 Nm |
| Knock sensor (KS) | 20±4 Nm |
| Engine oil pressure switch | 15±3 Nm |
| Oil filter | — |
| Chassis tightening torques | |
| Front hub | 255±20 Nm |
| Bolts/nuts | |
| Rear hub | 205±30 Nm |
| Steering wheel | 44±5 Nm |
| Steering rack/box mounting | 90±15 Nm |
| Steering track rod end | 37±3 Nm |
| Brake disc to hub Front | 12±3 Nm |
| Brake caliper to carrier Front | 52±2 Nm |
| Brake caliper/carrier to hub Front | 90±12 Nm |
| Brake disc to hub Rear | 12±3 Nm |
| Brake caliper to carrier Rear | 43±6 Nm |
| Brake caliper/carrier to hub Rear | 59±8 Nm |
| ABS sensor Front | 22±3 Nm |
| ABS sensor Rear | 22±3 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 | — |
| Refrigerant quantity | |
| Air conditioning oil group | PAG |
| Air conditioning oil Type | Atmos GU 10 |
| Air conditioning oil quantity cm³ | 120 |
| Air conditioning oil viscosity ISO | 46 |
Frequently asked questions
What is the firing order of the Mazda 6 2.0?
The firing order for the Mazda 6 2.0 (2005–2007) is 1-3-4-2.
How much oil does the Mazda 6 2.0 take?
The Mazda 6 2.0 (2005–2007) takes 4.3 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 6 2.0?
Valve clearances for the Mazda 6 2.0 (2005–2007) are 0,22-0,28 mm inlet and 0,27-0,33 mm exhaust, measured cold.
What is the cylinder head torque for the Mazda 6 2.0?
The cylinder head bolt torque for the Mazda 6 2.0 (2005–2007) is 5 Nm.
What is the minimum brake disc thickness for the Mazda 6 2.0?
Brake discs on the Mazda 6 2.0 (2005–2007) are replaced at a minimum thickness of 23 mm (ventilated) front and 8 mm rear.
What battery does the Mazda 6 2.0 use?
The Mazda 6 2.0 (2005–2007) uses a 12 V, 75 Ah battery.