Engine & identification
Vehicle identification
| No. of cylinders Type | 4/OHC |
|---|---|
| Capacity cc | 1998 |
| Compression ratio :1 | 16,7 |
| Fuel system Make | Denso |
Injection system
| Air metering Type | Mass |
|---|---|
| Pump type | Common rail |
| Fuel main pump delivery pressure bar | 1800 |
| Engine coolant temperature (ECT) sensor Ohm/°C | 290-340/80 |
| Injector Ohm | 0,4-0,5 |
| Intake air temperature (IAT) sensor Ohm/°C | 290-350/80 |
Injection sequence
The injection sequence for the Mazda 6 2.0 (2007–2009) is 1-3-4-2.
| Injection sequence | 1-3-4-2 |
|---|
Valve clearances
Valve clearances for the Mazda 6 2.0 (2007–2009) are 0,09-0,21 mm inlet and 0,29-0,41 mm exhaust, measured cold.
| Valve clearance - INLET mm | 0,09-0,21 cold |
|---|---|
| Valve clearance - EXHAUST mm | 0,29-0,41 cold |
Engine oil & fluids
Engine oil
The Mazda 6 2.0 (2007–2009) takes 4.1 litres of engine oil with the filter.
A listed engine oil option is SAE 5W-30 for all ambient temperatures, with API/ACEA classification /C1.
A listed engine oil option is SAE 0W-30 for all ambient temperatures, with API/ACEA classification /C1.
Manual gearbox
The manual gearbox has a listed capacity of 2.4-2.6 litres. The specified oil is SAE 75W-90, with classification GL-4/5.
Coolant
The listed total cooling-system capacity is 9.0 litres.
See the reference table for the complete coolant entries and their conditions.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | All temperatures |
| Engine oil grade SAE | 5W-30 |
| Engine oil classification API/ACEA | /C1 |
| Ambient temperature range | All temperatures |
| Engine oil grade SAE | 0W-30 |
| Engine oil classification API/ACEA | /C1 |
| Engine with filter(s) litres | 4.1 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | 75W-90 |
| Manual transmission oil classification | GL-4/5 |
| Manual transmission litres | 2.4-2.6 |
| Coolant Type | FL22 |
| Coolant Colour | Green |
| Cooling system - total capacity litres | 9.0 |
| Brake fluid Type | DOT 3/4 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Mazda 6 2.0 (2007–2009) are replaced at a minimum thickness of 23 mm (ventilated) or 23,8 mm (ventilated) front and 8 mm or 8,8 mm rear.
| Minimum disc thickness for replacement - ventilated Front | 23 mm |
|---|---|
| Minimum disc thickness after refacing - ventilated Front | 23,8 mm |
| Minimum disc thickness for replacement Rear | 8 mm |
| Minimum disc thickness after refacing Rear | 8,8 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 | 0,14 mm |
| Minimum pad thickness Front | 2 mm |
| Minimum pad thickness Rear | 2 mm |
| Parking brake travel No. of notches | 1-3 |
Service & electrical
Battery
The Mazda 6 2.0 (2007–2009) uses a 12 V, 70 Ah battery.
| Battery V/RC(Ah) | 12 (70) |
|---|
Glow plugs
Glow plugs for the Mazda 6 2.0 (2007–2009): Original equipment RFG-18-601.
| Glow plug - part no. Original equipment | RFG-18-601 |
|---|
Tuning and emissions
| Idle speed rpm | 750±50 |
|---|---|
| Rated no load speed rpm | 5000-5200 |
| Oil temperature °C | 60 |
| Idle speed - for smoke test rpm | 700-800 |
| Governed speed range - for smoke test rpm | 5000-5200 |
| Maximum time at governed speed secs | 2,0 |
| Test mode A/B | B |
| Probe type 1/2 | 1 |
| Smoke opacity - EU limit m-1 (%) | 1,50 (48) |
| Smoke opacity - homologation value m-1 (%) | 1,50 (48) |
Starting and charging
| Alternator output A/V/rpm | 70/12/2500 |
|---|
Service checks and adjustments
| Compression pressure bar | 27,0-29,0 |
|---|---|
| Oil pressure bar/rpm | 3,4/3000 |
| Radiator cap bar | 0,90-1,20 |
| Thermostat opens °C | 80-84 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Mazda 6 2.0 (2007–2009) are tightened in 2 stages: 15 Nm, then a final 29 Nm.
| Cylinder head | |
|---|---|
| Maximum bolt length | 161 mm |
| Tighten | 15 Nm |
| Tighten | 29 Nm |
| Tighten | 97°±7° |
| Tighten | 97°±7° |
| Tighten | 97°±7° |
| Cylinder head instructions | — |
|---|---|
| Other engine tightening torques | |
| Main bearings Renew bolts/nuts | No |
| Main bearings Stage 1 | 44±2 Nm |
| Main bearings Stage 2 | 85±3 Nm |
| Big end bearings Renew bolts/nuts | No |
| Big end bearings Stage 1 | 20±2 Nm |
| Big end bearings Stage 2 | 90°±7° |
| Oil pump to cylinder block | M8=22 Nm M10=45 Nm |
| Sump bolts | 10±2 Nm |
| Sump drain bolt | 35±5 Nm |
| Flywheel/driveplate | 156±5 Nm |
| Clutch pressure plate | 29±4 Nm |
| Crankshaft pulley/damper centre bolt | — |
| View more information | — |
| Crankshaft pulley/damper bolts | 27±5 Nm |
| Camshaft sprocket/gear | 60±5 Nm |
| Camshaft carrier/cap | 27±3 Nm |
| Camshaft/rocker cover | 10±2 Nm |
| Inlet manifold to cylinder head | 22±3 Nm |
| Exhaust manifold to cylinder head | 24±2 Nm |
| Exhaust downpipe to manifold | 26±3 Nm |
| Water pump | 45±7 Nm |
| Injector/clamp | 57±5 Nm |
| Injector pipe unions | 45±5 Nm |
| Fuel/injection pump sprocket/gear | 64±5 Nm |
| Fuel/injection pump mounting | 22±3 Nm |
| Glow plugs | 18±2 Nm |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor | 9±1 Nm |
| Camshaft position (CMP) sensor | 9±1 Nm |
| Engine coolant temperature (ECT) sensor | 20±4 Nm |
| Engine oil pressure switch | 12±2 Nm |
| Oil filter | 22±2 Nm |
| Chassis tightening torques | |
| Front hub | 255±20 Nm |
| Rear hub - wheel bearing housing bolts | — |
| Steering wheel | 48±7 Nm |
| Steering rack/box mounting | 90±15 Nm |
| Steering track rod end | 53±6 Nm |
| Brake disc to hub Front | 12±2 Nm |
| Brake caliper to carrier Front | 27±5 Nm |
| Brake caliper/carrier to hub Front | 92±10 Nm |
| Brake caliper to carrier Rear | 43±6 Nm |
| Brake caliper/carrier to hub Rear | 59±8 Nm |
| ABS sensor Front | 10±2 Nm |
| ABS sensor Rear | 9±1 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 | 525±25 |
| 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 injection sequence of the Mazda 6 2.0?
The injection sequence for the Mazda 6 2.0 (2007–2009) is 1-3-4-2.
What glow plugs does the Mazda 6 2.0 use?
Glow plugs for the Mazda 6 2.0 (2007–2009): Original equipment RFG-18-601.
How much oil does the Mazda 6 2.0 take?
The Mazda 6 2.0 (2007–2009) takes 4.1 litres of engine oil with the filter. A listed engine oil option is SAE 5W-30 for all ambient temperatures, with API/ACEA classification /C1. A listed engine oil option is SAE 0W-30 for all ambient temperatures, with API/ACEA classification /C1.
What are the valve clearances for the Mazda 6 2.0?
Valve clearances for the Mazda 6 2.0 (2007–2009) are 0,09-0,21 mm inlet and 0,29-0,41 mm exhaust, measured cold.
What is the cylinder head torque for the Mazda 6 2.0?
The cylinder head bolts on the Mazda 6 2.0 (2007–2009) are tightened in 2 stages: 15 Nm, then a final 29 Nm.
What is the minimum brake disc thickness for the Mazda 6 2.0?
Brake discs on the Mazda 6 2.0 (2007–2009) are replaced at a minimum thickness of 23 mm (ventilated) or 23,8 mm (ventilated) front and 8 mm or 8,8 mm rear.