Mazda LF 2.0L Engine Service Repair Manuals
A complete service and repair manual for the 2.0-liter Mazda LF engine. Includes detailed instructions for diagnostics, disassembly, assembly and troubleshooting. Contains specifications, diagrams and recommendations for effective engine maintenance. Ideal for car owners and professional mechanics.
LF engine applications
Mazda 3 (BK, BL): 2.0 litre versions.
Mazda 6 (GG, GH): 2.0 litre versions.
Mazda MX-5 (NC): 160 PS, optimised for sporty driving.
Ford Mondeo: Designated Duratec 2.0.
Ford Focus and Volvo S40/V50: As part of a collaboration between Mazda, Ford and Volvo.
Mazda 3 BK LF Engine Wiring Diagram
| Mazda 3 (BK, 2003 - 2009) Fuse Box Diagram Z6, ZJ, LF, MZ-CD, 1.6 | Download |
| Mazda 3 (BK, 2003 - 2009) Cooling System EWD | Download |
| Mazda 3 (BK, 2003 - 2009) Fuel System Z6, ZJ, LF, | Download |
| Mazda 3 (BK, 2003 - 2009) Charging System | Download |
| Mazda 3 (BK, 2003 - 2009) Starting System | Download |
| Mazda 3 (BK, 2003 - 2009) Control System | Download |
Mazda MX-5 NC 2005-2015 (LF)
| Mazda MX-5 2006-2008 Engine Overhaul | Download |
| Mazda MX-5 NC 2005-2008 Cooling System | Download |
| Mazda MX-5 NC 2005-2008 Emission System | Download |
| Mazda MX-5 NC 2005-2008 Engine Control System | Download |
| Mazda MX-5 NC 2005-2008 Engine Mechanical, Service Info | Download |
| Mazda MX-5 NC 2005-2008 Engine Technical Data | Download |
| Mazda MX-5 NC 2005-2008 Fuel System | Download |
| Mazda MX-5 NC 2005-2008 Ignition System | Download |
| Mazda MX-5 NC 2005-2008 Lubrication | Download |
| Mazda MX-5 NC 2009-2015 Emission System | Download |
| Mazda MX-5 NC 2009-2015 Fuel System | Download |
| Mazda MX-5 NC 2009-2015 Ignition System | Download |
| Mazda MX-5 NC 2009-2015 Intake Air System | Download |
Mazda 3 (BL, 2009–2013) (LF Engine)
| Mazda 3 (BL, 2009–2013) Engine Mechanical LF | Download |
| Mazda 3 (BL, 2009–2013) Lubrication System LF | Download |
| Mazda 3 (BL, 2009–2013) Cooling System LF | Download |
| Mazda 3 (BL, 2009–2013) Intake Air System LF | Download |
| Mazda 3 (BL, 2009–2013) Fuel System LF | Download |
| Mazda 3 (BL, 2009–2013) Exhaust System LF | Download |
| Mazda 3 (BL, 2009–2013) Emission System LF | Download |
| Mazda 3 (BL, 2009–2013) Charging System LF | Download |
| Mazda 3 (BL, 2009–2013) Ignition System LF | Download |
| Mazda 3 (BL, 2009–2013) Engine Technical Data LF | Download |
Typical LF engine faults
This is a reliable and productive engine, provided it is properly maintained and serviced on time.
Oil leaks:
The most vulnerable areas are the valve cover gasket and crankshaft seals.
Timing chain problems:
At high mileage, the chain may wear out, which is accompanied by noise, especially during cold starts.
Overheating:
May occur due to contamination of the radiator or failure of the thermostat.
Oil consumption:
Some models experience increased oil consumption, especially with aggressive operation.
Throttle valve:
Over time, it can become clogged, which causes unstable idle speed.
Sensors:
Mass air flow (MAF) sensors and oxygen sensors (lambda probes) often fail.
Maintenance Tips
- Change the oil regularly every 10,000 km or more often under severe operating conditions.
- Monitor the coolant level and the condition of the radiator.
- Clean the throttle valve every 30,000–40,000 km.
- Check the condition of the timing chain at about 150,000 km.