What are the main advantages of the K9K 646 engine?

Excellent fuel economy - real-world consumption around 4.5–5.5 L/100km makes daily running very affordable Strong torque of 260 Nm from just 1,750 RPM - effortless city driving and confident highway overtaking Very wide parts availability - this engine is used in millions of Renault, Nissan, and Dacia vehicles globally Good reliability record in Nissan applications, with many examples running past 300,000 km Modern emissions compliance with advanced injection technology keeping it relevant in current markets

What are common issues and problems with the K9K 646?

DPF system requires regular highway driving for proper regeneration - mostly short city trips leads to premature clogging Timing belt replacement is critical - interference engine design means belt failure causes expensive valve damage. Replace every 100,000–120,000 km Turbocharger requires quality oil and change intervals must not be extended - oil quality directly affects turbo life EGR valve cleaning every 80,000–100,000 km is advisable - carbon buildup causes rough idle and reduced performance Fuel injectors can develop issues after 150,000+ km if poor-quality diesel is used - always use quality fuel and change filters on time

What torque does the K9K 646 engine produce?

The K9K 646 engine produces 260 Nm.

What is the compression ratio of the K9K 646 engine?

The compression ratio of the K9K 646 engine is 17.5:1.

How much displacement does the K9K 646 engine have?

The K9K 646 engine has 1.5L (1461 cc) of displacement.

What is the fuel consumption of the K9K 646 engine?

Reported fuel consumption for the K9K 646 engine is 4.0-4.6L/100km.

Renault K9K 646 Engine Specs

Renault

Quick overview

Renault K9K 646 is a 1.5L (1461 cc) diesel engine with 260 Nm, 17.5:1 compression ratio. Fuel consumption: 4.0-4.6L/100km. Typical service life: 300000+.

↗ 1.5 dCi (K9K)

1.5L (1461 cm³)

Displacement

260 Nm @ 1750 RPM

Torque

Diesel

Fuel

Description

Enhanced Nissan K9K variant with improved fuel economy and emissions. Features advanced fuel injection system and optimized turbocharger for better efficiency while maintaining strong performance characteristics.

General Information

Production Years: 2006-2020

Fuel Type: Diesel

Environmental Standards: Euro 4, Euro 5, Euro 6

Fuel Consumption: 4.0-4.6L/100km (51.1-58.8 mpg)

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

Torque: 260 Nm @ 1750 RPM (192-1291 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 - real-world consumption around 4.5–5.5 L/100km makes daily running very affordable
+ Strong torque of 260 Nm from just 1,750 RPM - effortless city driving and confident highway overtaking
+ Very wide parts availability - this engine is used in millions of Renault, Nissan, and Dacia vehicles globally
+ Good reliability record in Nissan applications, with many examples running past 300,000 km
+ Modern emissions compliance with advanced injection technology keeping it relevant in current markets

Pay Attention

! DPF system requires regular highway driving for proper regeneration - mostly short city trips leads to premature clogging
! Timing belt replacement is critical - interference engine design means belt failure causes expensive valve damage. Replace every 100,000–120,000 km
! Turbocharger requires quality oil and change intervals must not be extended - oil quality directly affects turbo life
! EGR valve cleaning every 80,000–100,000 km is advisable - carbon buildup causes rough idle and reduced performance
! Fuel injectors can develop issues after 150,000+ km if poor-quality diesel is used - always use quality fuel and change filters on time

Utilizado en Vehículos

Nissan Note E11 (2006-2020)

Nissan Note E12 (2013-2020)

Nissan Juke F15 (2010-2019)

Nissan NV200 (2009-present)