| Renault-Nissan MR engine | |
| Manufacturer: | Nissan Motors and Renault |
| Production: | 2004–present |
| Predecessor: | Nissan SR engine Renault F-Type engine |
| Configuration: | Inline 4 |
| Block: | Aluminum alloy |
| Head: | Aluminum alloy |
| Displacement: | 1618cc 1798cc 1997cc |
| Bore: | 79.7mm 842NaN2 |
| Stroke: | 81.1mm 90.12NaN2 |
| Valvetrain: | DOHC 4 valves x cyl. with VVT |
| Turbocharger: | In some versions |
| Coolingsystem: | Water-cooled |
| Fuelsystem: | Fuel injection Direct injection |
| Fueltype: | Gasoline (all except M9R / M9T) Diesel (M9R / M9T) |
| Compression: | 9.5:1, 9.9:1 |
| Power: | 122- |
| Torque: | 174- |
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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The MR16DDT is a 1618cc DIG-T (Direct Injection Gasoline-Turbocharged) inline-four 16-valve engine, with a bore x stroke of NaNmm. It was first introduced in the Nissan Juke small SUV in the autumn of 2010. Output is and of torque. The 2014 Juke NISMO RS FWD produced and . 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 and .
Some of the pertinent features of the MR16DDT are:
Applications:
The MR18DE is a version with bore and stroke of and a power of, developed by Nissan, and first installed in the Nissan Tiida in 2004.
In North America the output is at 5500 rpm and 1740NaN0 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 at 5200 rpm and at 4800 rpm.
For Brazil, this engine is fitted to the Tiida and Livina ranges, with Flex-fuel capability.
Applications:
The MRA8DE is a 1797cc 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 . It produces at 6000 rpm and 1740NaN0 at 3600 rpm, and has a compression ratio of 9.9:1.
Applications:
The MR18DDT is a 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 NaN2NaN2. It produces at 6000 rpm and 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:
The MR20DE, a 1997cc 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 NaN2NaN2, 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 .
This engine is available with Nissan's XTRONIC CVT continuously variable transmission in several applications.
A detuned version, with instead of, was added to the new Bluebird Sylphy in late 2006. In the new Nissan X-Trail, Qashqai and C-Platform Sentra, the MR20DE produces at 5100 rpm and of torque at 4800 rpm. Middle East version of the MR20DE engine that goes in the Nissan Qashqai produces at 5200 rpm and of torque at 4400 rpm.
Applications:
The MR20DD is a engine developed by Nissan with direct injection and twin variable valve timing control. The MR20DD engine is "SU-LEV" certified in Japan, and produces at 5600 rpm and of torque at 4400 rpm.[2] Export models claim at 5200 rpm and at 4400 RPM. In 2016, it entered Renault's lineup in the Koleos II as the M5R, where it generates .
The Australian & New Zealand markets Nissan Qashqai ST and Ti models use a variant of the MR20DD which achieves at 6000 rpm and at 4400 rpm.[3] [4]
Applications:
The MR20DD Hybrid is a 1997cc 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 1440NaN0 at 6000 rpm and 1470NaN0 of torque at 4400 rpm. with Synchronous Electric Motor produces 410NaN0 and 1180NaN0 of torque and lithium-ion battery, for a combined power of 1790NaN0.
Applications:
The MR20DD S-Hybrid is a 1997cc 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 1500NaN0 at 6000 rpm and 1470NaN0 of torque at 4400 rpm. With synchronous electric motor and 48 V battery.
Applications:
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 for a total displacement of 22991NaN1, 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 66and had been replaced by the Renault R engine with the introduction of the Trafic III, while versions starting from 960NaN0 include VNT chargers. The top version of the Navara utilizes the M9T with twin-turbochargers and . During production period engines had been updated up to Euro 6 (in early 2017).
| Renault-Nissan M9R | |
| Aka: | 2.0 dCi |
| Manufacturer: | Nissan and Renault |
| Type: | Straight-4 diesel |
| Production: | 2006-present |
| Predecessor: | Renault F-Type engine |
| Successor: | Renault R-Type engine |
| Configuration: | Inline-four |
| Block: | Cast iron |
| Head: | Aluminium alloy |
| Valvetrain: | DOHC 4 valves per cylinder |
| Turbocharger: | Yes |
| Fuelsystem: | Common rail Direct Injection |
| Fueltype: | Diesel |
| Coolingsystem: | Water-cooled |
| Power: | 130- |
| Torque: | 320- |
| Compression: | 15.6:1 16.0:1 |
The M9R is a 1995cc 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 1500NaN0 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 3400NaN0 at 2000 rpm. A 1750NaN0 form with particulate filter is available in Renault Laguna and Nissan X-Trail models. A 1800NaN0 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 1500NaN0 New Mégane and New Laguna respectively emitted 144g/km and 154g/km of CO2 and the 1290NaN0 version of New Laguna 2.0 dCi emits 159g/km of CO2; they all comply with the Euro 5 standards for exhaust emissions.
In 2011 the 96and 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:
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 to - 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,, 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:
| Renault M9T | |
| Manufacturer: | Mercedes-Benz Group & Renault–Nissan–Mitsubishi Alliance |
| Production: | 2010–present |
| Configuration: | Inline-four engine |
| Displacement: | 2299cc |
| Bore: | 85mm |
| Stroke: | 101.3mm |
| Block: | Aluminium alloy |
| Head: | Aluminium alloy |
| Valvetrain: | DOHC |
| Compression: | 15.4:1 |
| Fuelsystem: | Common rail direct injection |
| Fueltype: | Diesel |
| Coolingsystem: | Water cooled |
| Power: | NaN0NaN0 |
| Torque: | NaN0NaN0 |
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 75kW to 110kW, and torque ratings starting at 185Nm up to 350Nm.[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: