Nissan Micra K12 Engine Service Repair Manuals

This comprehensive guide has been created for owners, mechanics and garages to assist in repairing and servicing models fitted to the Nissan Micra K12 2002-2010. It contains all the information needed to perform both basic maintenance and complex repairs to ensure the reliable operation of your vehicle.

Typical symptoms and methods of diagnosing engine problems. Using diagnostic equipment and software to identify faults.

Regulations and recommendations for changing oil, filters, spark plugs and other consumables. Step-by-step instructions for disassembling and assembling the engine, including removing and installing components. Guide to repairing and replacing the timing system, including the timing chain or belt.

Petrol engines:

1.0-litre (CR10DE):

A three-cylinder, 1.0-litre engine.

Power: Around 65bhp

Found in entry-level Micra models.

1.2-litre (CR12DE):

A four-cylinder, 1.2-litre engine.

Power: Around 80bhp

One of the most common engines on the Micra K12.

1.4-litre (CR14DE):

A four-cylinder, 1.4-litre engine.

Power: Around 88bhp

This engine offered slightly more power and was fitted to higher trim levels.

1.6-litre (HR16DE):

A four-cylinder, 1.6-litre engine.

Power: Around 110bhp

Found in sportier models such as the Micra 160SR.

Diesel engines:

1.5-litre diesel (K9K):

Four-cylinder, 1.5-litre turbodiesel engine.

Power: Varies from 65 to 86 PS depending on version.

It was an economical engine, offering a good balance between performance and fuel consumption.

• Home Page>>
• Micra K12 Electrical Wiring Diagrams>>
• Micra K12 Full Factory Service Manual>>
• Micra K12 Body Repair Manuals>>

1.0-liter (CR10DE) and 1.2-liter (CR12DE):

Timing chain wear: These engines use a timing chain that can stretch over time. This can lead to timing issues, loss of power, and even engine damage if the chain jumps.

Ignition coil issues: Ignition coils can fail, causing misfires, rough running, and loss of power.

Sensor issues: The crankshaft and camshaft position sensors can fail, causing hard starting and rough running.

1.4-liter (CR14DE):

Timing chain stretch: Like the 1.2-liter engine, this engine can also experience timing chain stretch, requiring replacement.

High oil consumption: Sometimes these engines can consume more oil, especially as the mileage increases.

1.6-liter (HR16DE):

Timing chain stretch: This problem can also occur on this engine.

Misfires: Problems with the ignition coils and spark plugs can lead to misfires, especially under high loads.

1.5-liter diesel (K9K):

Injection system problems: Fuel injectors and high-pressure pump can fail, which leads to loss of power and poor engine starting.

Clogged diesel particulate filter (DPF): Diesel versions can experience a problem with clogged diesel particulate filter, especially with frequent urban use.

Turbo problems: The turbocharger can fail if scheduled oil and filter changes are not followed, which leads to reduced power and uneven engine operation.

The most reliable of the Nissan Micra K12 engines is considered to be the 1.2-liter petrol engine (CR12DE). This engine has a good balance between performance and economy, and with regular maintenance it will serve for a long time without serious problems.

However, even for this engine, it is important to regularly check the condition of the timing chain and replace it if necessary to avoid serious breakdowns.