Product Code Database
Prince is the codename for a family of straight-four Multi-valve all-aluminium Petrol engine with variable valve lift and variable valve timing developed by BMW and PSA Peugeot Citroën. It is a compact engine family of 1.4–1.6 L in displacement and includes most modern features such as gasoline direct injection and turbocharger.
The BMW versions of the Prince engine are known as the N13 and the Mini versions are N12 (Double VANOS, Valvetronic at 6000 rpm) in 2007–2010 Cooper; N14 (Single VANOS, Turbocharged at 5500 rpm) in 2007–2010 Cooper-S; N14 (Single VANOS, Turbocharged at 6000 rpm) in 2009–2013 JCW Cooper; N16 (Double VANOS, Valvetronic at 6000 rpm) in 2011–2013 Cooper and N18 (Double VANOS, Valvetronic Turbocharged at 5500 rpm) in 2011–2013 Cooper-S.Mini Cooper Service Manual 2007–2013 by Bentley Publishers It replaced the Tritec engine family in the Mini and was first introduced in 2006 for MINI. Later in 2011 also for BMW models F20 and F21 114i, 116i and 118i . This was the first longitudinal engine mount option for Prince engine.
PSA started to use the Prince family in 2006 to replace a part of their TU family (the other part being replaced by the EB engine) — the Peugeot 207 being the first car to receive it.
The engine's components are produced by PSA at their Douvrin, France, facility, with MINI and BMW engine assembly at Hams Hall in Warwickshire, UK. The co-operation was announced on 23 July 2002 with the first engines produced in 2006. The Prince engine project is not related to the Prince Motor Company.
In late 2006, an extension of the cooperation between the two groups was announced, promising new four-cylinder engines, without further details.
On 29 September 2010, it was announced by BMW that the turbocharged 1.6-litre version of the Prince engine would be supplied from 2012 to Saab Automobile for use in forthcoming models, primarily the 9-3. However, with the closure of SAAB, supply never started.
At the Geneva Auto Show 2011, Saab unveiled their last concept vehicle: the Saab PhoeniX was fitted with the 1.6-litre, turbocharged BMW Prince engine with .
On 25 June 2014 1.6-litre turbo Prince engine won its eighth consecutive International Engine of the Year Award in the 1.4 to 1.8-litre category. In 2014 the Prince engine beat, among others, the new BMW B38 engine which is replacing the Prince engine in the Mini and BMW lineups.
All Prince engines will share cylinder bore spacing, with bore. The 1.6 litre engine has a stroke of . The engine features a two-piece "bedplate" aluminium crankcase for extra stiffness.
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The naturally aspirated variant ( EP6, EP6C) has conventional fuel injection and lost-foam cast . Its 11:1 compression ratio creates an output of at 6000 rpm with a redline of 6500 rpm. Torque is at 4250 rpm.
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At first, there were two versions on offer – the THP150 and THP175, also known as the EP6DT and EP6DTS respectively within Peugeot. The first was later updated as EP6CDT and also as THP163, EP6CDTM. There is also EP6CDT MD – with lowered compression ratio.
For the THP150 maximum torque is at 1400 rpm. Power output is at 5500 rpm.
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For the THP163 maximum torque is at 1400 rpm. Power output is at 5500 rpm.
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For the THP175 ( EP6DTS, later EP6CDTS) maximum torque is at 1600 rpm, remaining flat to 5000 rpm. Power output is at 5500 rpm. An overboost function is available which temporarily increases torque to between 1700 rpm and 4500 rpm in gears 3 to 5.
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In 2010 Peugeot released the 1.6 THP engine ( EP6CDXD) with at 5500 rpm, maximum torque at 1700 rpm. It featured direct injection, twin-scroll turbocharger and Valvetronic variable valve lift. It was first introduced in the Peugeot RCZ sport compact for the 2010 model year, where it generates .
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The 2012–2014 Mini John Cooper Works GP featured additional performance, with at 6000 rpm and of torque at 2000–5100 rpm from a larger turbo and engine internals.
PSA has now released a new Euro 6 engine based on the THP in the following Engine codes:
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In 2025, Stellantis unveiled the North American version known internally as the EP6CDTX for use in STLA Medium and STLA Large vehicles in conventional non plugin hybrid setups, for the North American market. It has a power output of 210hp and 230lb torque.
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BMW sold the N13 alongside the larger displacement BMW N20 turbocharged four-cylinder engine. The N13 was effectively replaced by the turbocharged three-cylinder BMW B38 engine.
| 2011–2015 |
| 2012–2015 |
75 kW version
100 kW version
125 kW version
130 kW version
There was a service bulletin issued in 2013 due to failing timing chains and timing chain tensioner, both designed by BMW, in the Prince engine.
In 2015 it was announced, on the Hong Kong Stock Exchange, that BMW had signed an IPR deal with XCE. They will make the N18 TVDI engine in China for use in various Brilliance Automotive vehicles (JV Partner of BMW in China) and also for other China OEMs.
PSA will continue to develop the higher power models of the engine family, with future production planned for China with its JV partners Dongfeng (DPCA) and Changan (Changan PSA).
From 2025, the engine will be produced in the Dundee plant, in a new hybridised version that will first be used by the new Jeep Cherokee.
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