Mini Engine N12b14a

The 1.4-liter engine Mini One N12B14A was produced at the factory in England from 2007 to 2010 and installed in the simplest versions of the Mini model with the R56 body and in the Clubman estate with the R55 body. A similar power unit was used in some Peugeot-Citroen models with the EP3 index. Prince series: N12B16A, N14B16A, N14B16C, N16B16A, N18B16A, and N18B16C.

Technical data of Mini N12B14A 1.4 liter engine.

Modified One 75
Exact capacity1397 cm³
Power systemdistributed injection
Engine power75 HP
Torque120 nm
Engine blockaluminum R4
Block headaluminum 16v
Cylinder diameter77 mm
Piston stroke.75 mm
Compression ratio11
Engine featuresDOHC, Valvetronic
Hydraulic compensator. tak
Timing drivechain
Timing phase adjusteron intake and exhaust.
Turbochargingthere is no
What oils to use4.2 liters 5W-30
Fuel type95
Environmental classEURO 4
Approximate life expectancy250 000 HP
Modified One 95
Exact capacity1397 cm³
Power systemdistributed injection
Engine power95 HP
Torque140 nm
Engine blockaluminum R4
Block headaluminum 16v
Cylinder diameter77 mm
Piston stroke.75 mm
Compression ratio11
Engine featuresDOHC, Valvetronic
Hydraulic compensator. tak
Timing drivechain
Timing phase adjusteron intake and exhaust.
Turbochargingthere is no
What oils to use4.2 liters 5W-30
Fuel type95
Environmental classEURO 4
Approximate life expectancy230 000 HP

Fuel consumption Mini Engine N12b14a

For example, using the 2009 Mini One with a manual gearbox:
City7.2 litry
Route4.4 litry
Mixed5.4 litry

Engine Overview and Common Failures

The most well-known problem of these engines is oil consumption and intake coking. The components of the timing chain drive, especially the tensioner, have a relatively low lifespan. The Vanos variable valve timing system and Valvetronic system also have a shorter service life. Additionally, engines of this family are notorious for regular leaks of lubricant and antifreeze. Weak points of the engine include the water pump, thermostat, and secondary oxygen sensor.

Engine Mini N12b14a

Mini
Clubman R552009 - 2010
Hatch R562007 - 2010

Engines from the same line as Mini Engine N12b14a

See Also

Mini Engine W11b16a

The 1.6-liter turbocharged engine Mini W11B16A was installed by the company between 2001 and 2008 and used in Mini models with the R52 and R53 body styles, such as the Cooper S or John Cooper Works. This powertrain achieved high performance thanks to the Eaton M45 supercharger. The Tritec series also includes engines: W10B14A and W10B16A.

Mini Engine N14b16c

The 1.6-liter turbocharged engine Mini John Cooper Works N14B16C was produced from 2008 to 2012 and installed in higher-powered versions of the second generation Mini models with the R55, R56, or R57 body types. The same powertrain was used in Peugeot and Citroen vehicles under their own index EP6DTS. The Prince series includes: N12B14A, N12B16A, N14B16A, N16B16A, N18B16A, and N18B16C.

Ford J4d Engine

The 1.3-liter petrol engine Ford Ka 1.3 J4D was installed by the company in the years 1996-2002 and used only in the first generation of the very popular Ka model on the European market. There was also a weaker version of this engine with the designation JJB. The Endura-E series also includes engines with the designation: JJA.

Great Wall Gw4b15d Engine

The 1.5-liter turbo engine GW4B15D by Great Wall is produced at the factory in China since 2021 and currently only installed in all-wheel-drive versions of the popular Jolion crossover here. This engine differs from its predecessor with a very high compression ratio of 11.8. Other available engines include: GW4B15A, GW4C20A, GW4C20B, GW4C20NT, and GW4N20.