Bro Hey_Dexx
DS5 is a lovely car,if you like it go for it. I'll point out some details you should know. 2 engine options were brought to Malaysia - 1.6thp & 2.2turbo diesel. I did quite a bit of research on 1.6thp Prince engine, found some valuable info.

Early Prince engines has a few issues. The engine has gone through a complete make over in 2012(code:EP6CDTM) which has made it reliable, most of the early issues were solved. As a result PSA offered this, as one of its engine option on Sedan/hatchback/SUV/MPV vehicles as 2014, on both Citroens & Peugeots.

Prince has gone through further refinement which is now fitted to facelift models. Since you are looking at a used one, go for the EP6CDTM engine.

EP6CDTM carried the following mods:
1) Engine tuned to run on RON 87 petrol
2) Remapped ECU
3) New designed piston with lower compression
4) New designed catalyzer.
5) New engine oil filter housing with heat exchanger
6) New turbo charger
7) New fuel tank gauge unit with lower pressure pump to handle lower grade petrol.
8) A fuel filter to cater for hash atmospheric condition ( third world country)

I'm glad to say mine is 6 years now and running without any issues! Fortunately there are now Citroen/Peugeot specialist workshops in Klang valley. I can testify these guys do a better job than most authorised SC. I dare say your car can be maintained in top condition by these workshops! Here are their contacts for your use.

This post has been edited by SKYjack: Jan 19 2018, 11:34 AM


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THP156 is an improved Prince. Its THP140 that is problematic. Both these came on the 308.

Take your time and get the THP163, i think from 2014. This engine was 1st introduced on 408t. 8mods were done, which has made this engine reliable. I've listed the mods earlier.

If the DS5 2013 is EP6CDTM, do not hesitate, buy it! It may be EP6CDT, if price is right get it. This engine has been retuned & 90% of the old issues solved. You may need to do decarbo to clear carbon deposits earlier freequency with this version. THP200 version was not brought to Malaysia on DS5.

Enhancements are free but they are not conversions. Enhancements are for specific versions and stay as such. Meaning EP6CDT will not be converted to EP6CDTM. If done, will not be done for free. You could do it outside workshop,I'm not sure if it's worth the effort. Remember 8 mods were done on EP6CDTM, a complete make over. Even pistons were redesigned as well as other crytical components, so it's not just a simple coversion kit!

IMO some addition maintennace is all that is needed to keep EP6CDT running well!

This post has been edited by SKYjack: Jan 24 2018, 11:49 AM