What are the main advantages of the K9K 636 engine?

Excellent fuel economy for the power delivered - real-world consumption of around 4.5–5.5 L/100km makes it very affordable to run Good low-end torque delivery - strong from around 1,750 RPM makes city driving and overtaking effortless Wide availability of parts - used in millions of Renault and Nissan vehicles globally Optimized for Nissan vehicle applications with reliable turbocharger design Proven reliability in taxi and commercial service, with many examples running past 300,000 km with regular maintenance

What are common issues and problems with the K9K 636?

EGR valve requires regular cleaning every 80,000–100,000 km - carbon deposits cause rough idle and performance loss Timing belt replacement is critical - interference engine, so belt failure means immediate valve damage. Replace every 100,000–120,000 km Turbocharger longevity depends on oil quality and change intervals - use correct spec and don't delay services Fuel injectors are sensitive to poor quality diesel - always use quality fuel and replace fuel filters on schedule In very cold climates, glow plug system health is critical for reliable cold starts - check and replace glow plugs as they age

What torque does the K9K 636 engine produce?

The K9K 636 engine produces 250 Nm.

What is the compression ratio of the K9K 636 engine?

The compression ratio of the K9K 636 engine is 17.5:1.

How much displacement does the K9K 636 engine have?

The K9K 636 engine has 1.5L (1461 cc) of displacement.

What is the fuel consumption of the K9K 636 engine?

Reported fuel consumption for the K9K 636 engine is 4.1-4.8L/100km.

Renault K9K 636 Engine Specs

Renault

Quick overview

Renault K9K 636 is a 1.5L (1461 cc) diesel engine with 250 Nm, 17.5:1 compression ratio. Fuel consumption: 4.1-4.8L/100km. Typical service life: 300000+.

↗ 1.5 dCi (K9K)

1.5L (1461 cm³)

Displacement

250 Nm @ 1750 RPM

Torque

Diesel

Fuel

Description

Nissan-specific K9K variant with optimized tuning for Micra and Note models. Features unique engine management calibration and turbocharger mapping to suit Nissan vehicle characteristics and driving requirements.

General Information

Production Years: 2003-2013

Fuel Type: Diesel

Environmental Standards: Euro 4, Euro 5

Fuel Consumption: 4.1-4.8L/100km (49-57.4 mpg)

Displacement: 1.5L (1461 cm³) (89.2 cu.in)

Torque: 250 Nm @ 1750 RPM (184-1291 lb-ft)

Has Turbo: Yes

Aspiration Type: Inline-4

Cylinders Count: 4

Technical Details

Compression Ratio: 17.5:1

Hydraulic Lifters: No

Maintenance

Service Life (km): 300000+ (186,411 miles)

Scores

Reliability

Economy

Power

Values 1–100. Calculated from engine specs.

Advantages

+ Excellent fuel economy for the power delivered - real-world consumption of around 4.5–5.5 L/100km makes it very affordable to run
+ Good low-end torque delivery - strong from around 1,750 RPM makes city driving and overtaking effortless
+ Wide availability of parts - used in millions of Renault and Nissan vehicles globally
+ Optimized for Nissan vehicle applications with reliable turbocharger design
+ Proven reliability in taxi and commercial service, with many examples running past 300,000 km with regular maintenance

Pay Attention

! EGR valve requires regular cleaning every 80,000–100,000 km - carbon deposits cause rough idle and performance loss
! Timing belt replacement is critical - interference engine, so belt failure means immediate valve damage. Replace every 100,000–120,000 km
! Turbocharger longevity depends on oil quality and change intervals - use correct spec and don't delay services
! Fuel injectors are sensitive to poor quality diesel - always use quality fuel and replace fuel filters on schedule
! In very cold climates, glow plug system health is critical for reliable cold starts - check and replace glow plugs as they age

Used in Vehicles

Nissan Micra K12 (2003-2010)

Nissan Note E11 (2006-2013)

Nissan Cube Z12 (2008-2014)