Engine Nissan MR20DE

The 2.0-liter Nissan MR20DE engine (or MR20 for short) was produced at the Yokohama plant from 2005 to 2020. At first, it was installed on Nissan Lafesta and Nissan Serena minivans, as well as on the Nissan Bluebird Sylphy sedan (in Russia, Nissan Almera, produced by AvtoVAZ). Since 2006, it has been installed on the Nissan Qashqai (in Japan – Dualis, in America – Rogue), and since 2007 – on the Nissan X-trail. This engine is installed not only on Nissan cars, but also on Renault cars under the M4R index.

This is a completely classic power unit of the Japanese school of motor building of that time: a 4-cylinder aluminum block with cast-iron sleeves and an open cooling jacket, an aluminum 16-valve cylinder head, a timing chain and a phase regulator only on the intake camshaft. There are no hydraulic lifters here, the valves are adjusted by selecting solid pushers.

Fuel injection here is conventional distributed, however, thanks to the use of an electronic throttle assembly, the motor was eventually able to fit into the strict Euro 5 environmental standards.

The MR family includes internal combustion engines: MR15DDT, MR16DDT, MRA8DE, MR18DE and MR20DD.

The engine was installed on:

  • Nissan Bluebird Sylphy G11 in 2005 – 2012;
  • Nissan Serena C25 in 2005 – 2010;
  • Nissan Sentra 6 (B16) in 2006 – 2012;
  • Nissan Sentra 7 (B17) in 2012 – 2020;
  • Nissan Teana 2 (J32) in 2008 – 2013;
  • Nissan Teana 3 (L33) in 2012 – 2020;
  • Nissan Qashqai 1 (J10) in 2006 – 2013;
  • Nissan X-Trail 2 (T31) in 2007 – 2014.

Specifications

Manufacturer Yokohama Plant
Also called MR20DE/M4R
Production years 2005-2020
Cylinder block alloy aluminum
Fuel system injector
Configuration inline
Number of cylinders 4
Valves per cylinder 4
Piston stroke, mm 90.1
Cylinder bore, mm 84
Compression ratio 10.2
Displacement, cc 1997
Power output, hp 133/5200
137/5200
140/5100
147/5600
Torque output, Nm / rpm 191/4400
196/4400
193/4800
210/4400
Fuel type 95
Euro standards Euro 4
Weight, kg 118
Fuel consumption, L/100 km (for Nissan Qashqai 2009)
— city
— highway
— combined
11.0
6.2
8.0
Oil consumption, gr/1000 km up to 500
Recommended engine oil 0W-30 / 5W-30 / 5W-40 / 10W-30 / 10W-40 / 10W-60 / 15W-40
Engine oil capacity, liter 4.4
Amount of engine oil for replacement, liter 3.5
Oil change interval, km 15000
Normal engine operating temperature, °C ~90
Engine lifespan, km ~350 000

Disadvantages of the MR20DE engine

  • This unit is very reliable and does not have any serious design flaws, however, many owners complain about oil consumption, and sometimes even from low runs. To get rid of the oil burner can help the selection of oil, decarbonization or already overhaul.
  • According to the regulations, the timing chain is designed for the entire service life of the unit, but in reality it often requires replacement up to 200,000 km. And most often together with a phase regulator.
  • The specialized forums describe cases of a strong drop in power in hot weather. The air temperature sensor, which is built into the mass air flow sensor, is most often to blame for this.
  • The aluminum head of the block here is quite delicate, it is afraid of both overheating and simply the excessive effort of the master when screwing in bolts or, for example, spark plugs. Be extremely careful or you will have to look for a new cylinder head due to cracking.
  • The minor problems of the unit include floating speed due to throttle contamination, the constant whistle of the belt of mounted units and the knocking of valves requiring adjustment.

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