Nissan MR engine

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Template:Short description Template:More citations needed Template:Infobox automobile engine The Renault-Nissan MR engine family consists of straight-four 16-valve all-aluminium and water cooled automobile engines with variable valve timing co-developed by Renault and Nissan. Renault calls it the M engine. Other noteworthy features of this engine family include acoustically equal runner lengths and a tumble control valve for the intake manifold, a "silent" timing chain, mirror finished crankshaft and camshaft journals, and offset cylinder placement in an attempt for increased efficiency.

The MR engine family features 'under stress' manufacture, meaning while the block is being bored, a torque plate puts the block under stress. The block becomes temporarily distorted until the head is torqued onto it, at which point the block is pulled into the correct shape.

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MR16DDT (Renault M5Mt)

The MR16DDT is a Template:Cvt DIG-T (Direct Injection Gasoline-Turbocharged) inline-four 16-valve engine, with a bore x stroke of Template:Cvt. It was first introduced in the Nissan Juke small SUV in the autumn of 2010. Output is Template:Cvt and Template:Cvt of torque. The 2014 Juke NISMO RS FWD produced Template:Cvt and Template:Cvt. In 2015, the Nissan Teana received this 1.6 Turbo as a replacement for the earlier 2.0-liter naturally aspirated engine. In 2013, it entered Renault's lineup in the Sport Clio as the M5Mt, where it generates Template:Cvt and Template:Cvt.

File:Nissan Juke 16GT FOUR Type V engine room.jpg
MR16DDT

Some of the pertinent features of the MR16DDT are:

Applications:

MR18DE

The MR18DE is a Template:Cvt version with bore and stroke of Template:Cvt and a power of Template:Cvt, developed by Nissan, and first installed in the Nissan Tiida in 2004.

In North America the output is Template:Cvt at 5500 rpm and Template:Cvt at 4800 rpm.

From July 6, 2006, this engine is also fitted to Nissan Livina Geniss for China version and the Nissan Grand Livina for Indonesia and Malaysia. Output is Template:Cvt at 5200 rpm and Template:Cvt at 4800 rpm.

For Brazil, this engine is fitted to the Tiida and Livina ranges, with Flex-fuel capability.

Applications:

MRA8DE

File:NISSAN MRA8DE ENGINE.JPG
MRA8DE engine

The MRA8DE is a Template:Cvt engine, different from the MR18DE as it has a twin variable valve timing system on both the intake and exhaust valves and uses a diamond-like carbon coating. Bore and stroke is Template:Cvt. It produces Template:Cvt at 6000 rpm and Template:Cvt at 3600 rpm, and has a compression ratio of 9.9:1.

Applications:

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Script error: No such module "anchor". MR18DDT (Renault M5Pt)

The MR18DDT is a Template:Cvt engine, different from the MR18DE and MRA8DE as it has a turbocharged, twin variable valve timing system on both the intake and exhaust valves and uses a diamond-like carbon coating. Bore and stroke is Template:Cvt. It produces Template:Cvt at 6000 rpm and Template:Cvt at 3600 rpm, and has a compression ratio of 9.0:1. It is used in the Renault and Alpine vehicles since 2015, where it is named M5Pt.

Applications:

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File:Nissan MR20DE in Renault Clio.jpg
MR20DE installed (as an M4R) in a Renault Clio IIITemplate:Broken anchor

The MR20DE, a Template:Cvt engine, was the first MR series engine developed by Nissan as a replacement for the QR20DE. It is an undersquare engine, its bore and stroke being Template:Cvt, respectively. It was first introduced in the Lafesta and Serena MPVs and Renault Samsung SM5 in early 2005. In November 2006, it entered Renault's lineup in the Clio III as the M4R, where it generates Template:Cvt.

This engine is available with Nissan's XTRONIC CVT continuously variable transmission in several applications.

A detuned version, with Template:Cvt instead of Template:Cvt, was added to the new Bluebird Sylphy in late 2006. In the new Nissan X-Trail, Qashqai and C-Platform Sentra, the MR20DE produces Template:Cvt at 5100 rpm and Template:Cvt of torque at 4800 rpm. Middle East version of the MR20DE engine that goes in the Nissan Qashqai produces Template:Cvt at 5200 rpm and Template:Cvt of torque at 4400 rpm.

Applications:

Script error: No such module "anchor". MR20DD (Renault M5R)

File:NISSAN MR20DD ENGINE.jpg
MR20DD Engine in a Nissan Altima (L34, China)

The MR20DD is a Template:Cvt engine developed by Nissan with direct injection and twin variable valve timing control. The MR20DD engine is "SU-LEV" certified in Japan, and produces Template:Convert at 5600 rpm and Template:Cvt of torque at 4400 rpm in its first permutation, with a 11.2:1 compression ratio.[2] Export models claim Template:Convert at 5200 rpm and Template:Convert at 4400 rpm.

In 2016, it entered Renault's lineup in the Koleos II as the M5R, and is also in the eight generation Sentra, where it produces Template:Convert at 6400Template:Nbsprpm and Template:Convert at 4400Template:Nbsprpm with a compression ratio of 10.6:1.

The Australian & New Zealand market Nissan Qashqai ST and Ti models use a variant of the MR20DD which achieves Template:Cvt at 6000 rpm and Template:Cvt at 4400 rpm and a compression ratio of 11.2:1.[3][4] In the Nissan Rogue Sport and second generation Kicks, a similar version produces Template:Convert at 6000Template:Nbsprpm and Template:Convert at 4000Template:Nbsprpm.

The fifth generation Nissan Serena uses a version of this engine with a 12.5:1 compression ratio, outputting Template:Convert at 6000Template:Nbsprpm and Template:Convert at 4400Template:Nbsprpm.

Applications:

MR20DD Hybrid

File:Nissan MR20DD Hybrid Engine.jpg
MR20DD Hybrid Engine

The MR20DD Hybrid is a Template:Cvt Hybrid engine developed by Nissan with direct injection and twin variable valve timing control. The MR20DD Hybrid engine is "SU-LEV" certified in Japan, and produces Template:Cvt at 6000 rpm and Template:Cvt of torque at 4400 rpm. with Synchronous Electric Motor produces Template:Cvt and Template:Cvt of torque and lithium-ion battery, for a combined power of Template:Cvt.

Applications:

MR20DD S-Hybrid

The MR20DD S-Hybrid is a Template:Cvt Hybrid engine developed by Nissan with direct injection and twin variable valve timing control. The MR20DD S-Hybrid engine is MHEV "SU-LEV" certified in Japan, and produces Template:Cvt at 6000 rpm and Template:Cvt of torque at 4400 rpm. With synchronous electric motor and 48 V battery.

Applications:

M9 diesel

The M9R and M9T are a family of straight-four 16-valve turbocharged diesel engines co-developed by Nissan and Renault, and also Mercedes-Benz Group in the case of the M9T/OM699. Following Renault's designation plan, the last letter (M9R resp. M9T) is to indicate the swept volume of 2.0 L resp. 2.3 litres. Despite the similar names, the diesel engines are only loosely related to the MR gasoline engines. M9R is built at Renault's Cleon factory in Normandy.[5] As of late 2018, a new version of the M9R using adBlue and with slightly different internal dimensions replaced the original M9R.

Features of the diesel engines include a cast-iron block, aluminium alloy cylinder head with double overhead camshafts, 16-valve layout and a bushes timing chain. The M9T is directed to heavier vehicles like the Nissan Navara or the Renault Master. It features a bore and stroke of Template:Cvt for a total displacement of Template:Cvt, balancer shafts,[6] typical speeds are 3500 rpm for maximum power and 1250 rpm for maximum torque.

Low output versions of the M9R for the Renault Trafic II at Template:Cvt had been replaced by the Renault R engine with the introduction of the Trafic III, while versions starting from Template:Cvt include VNT chargers. The top version of the Navara utilizes the M9T with twin-turbochargers and Template:Cvt. During production period engines had been updated up to Euro 6 (in early 2017).

M9R

File:Nissan M9R Engine 01.JPG
M9R turbo diesel engine

Template:Infobox automobile engine

The M9R is a Template:Cvt 16-valve turbocharged diesel engine developed by the Renault–Nissan Alliance, and first installed in the Renault Laguna in 2006. It is available in the Template:Cvt tune in Nissan Qashqai, Nissan X-Trail, Renault Mégane, Renault Koleos and Renault Laguna models. In this trim the engine achieves maximum power at 4000 rpm and maximum torque of Template:Cvt at 2000 rpm. A Template:Cvt form with particulate filter is available in Renault Laguna and Nissan X-Trail models. A Template:Cvt variant is also available on the Laguna GT. In both engines maximum power is achieved at 3750 rpm and maximum torque is available from 1750 rpm.

In order to reduce vibrations, balance shafts are included in some versions of the engine. The 2.0 dCi engine in all its versions complies with the Euro 4 and 5 standards for exhaust emissions. The Template:Cvt New Mégane and New Laguna respectively emitted Template:Cvt/km and Template:Cvt/km of CO2 and the Template:Cvt version of New Laguna 2.0 dCi emits Template:Cvt/km of CO2; they all comply with the Euro 5 standards for exhaust emissions.

In 2011 the Template:Cvt M9R engines has been updated with an optional package to lower exhaust emissions (Euro5) and fuel consumption. These engines are tagged "2.0 Energy dCi 130" resp. "2.0 Energy dCi 150", typically maximum power is available at 3750 rpm and maximum torque at a minimum of 1750 rpm. The package comprises:

  • Stop & Start
  • Active thermal management
  • Smart electrical management
  • Variable capacity oil pump

The CO2 values were thus reduced to 118 g/km for the Laguna both the 2.0 Energy dCi 130 and 2.0 Energy dCi 150.

Towards the end of 2018, the 2-liter M9R engine became the "M9R Gen 5" when it received a thorough redesign to comply with the increasingly stringent anti-pollution regulations: first of all the engine dimensions were changed, from Template:Cvt to Template:Cvt - using the same bore as the larger M9T but with nearly no change in displacement, which increases by 2 cc to 1997 cc. Another important innovation introduced with this update was the BluedCi technology, which involves the installation of a small tank of adBlue, a chemical additive that is injected upstream of the catalyst and which, when combined with the exhaust gas, causes a reaction chemistry within the catalyst itself. This reaction transforms most of the nitrogen oxides into harmless nitrogen and water vapor. This engine debuted in two power levels, Template:Cvt, in the Renault Talisman II 2.0 Blue dCi which was produced from December 2018. In December 2020 a single 190 PS version replaced both of the earlier versions.

The engine is fitted to the following vehicles:

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Template:Infobox automobile engine

The M9T is a version specifically designed for light commercial vehicles that is manufactured by Renault in Cléon. It was introduced on the Renault Master and its badge engineered derivatives, initially with power ranging from Template:Cvt to Template:Cvt, and torque ratings starting at Template:Cvt up to Template:Cvt.[7][8] Later, it was also introduced to the Nissan Navara and the Mercedes-Benz X-Class.[9][10] Nissan calls it the YS23 while in Mercedes-Benz vehicles, it is named the OM699. The engines with lower power ratings feature a single fixed geometry turbocharger,[11] while the more powerful versions have a variable-geometry turbocharger or twin-turbochargers.[12] The engines are compliant with the Euro 6 emission regulations.[13]

Applications:

See also

External links

References

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  1. ↑ Script error: No such module "citation/CS1".
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  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ Nissan Qashqai Specifications Template:Webarchive Retrieved September 28, 2017.
  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ Brochure renault.com Template:Dead link
  7. ↑ Script error: No such module "citation/CS1".
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  10. ↑ Script error: No such module "citation/CS1".
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ Script error: No such module "citation/CS1".
  13. ↑ Script error: No such module "citation/CS1".
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