EP6/THP (Prince) vs TU3 1.4

Side-by-side reliability comparison

Higher reliability score
TU3 1.4 ACCEPTABLE 76/100
+31 points over EP6/THP (Prince)
0 / 100
AVOID EP6/THP (Prince) PSA
0 / 100
ACCEPTABLE TU3 1.4 PSA

Specifications

EP6/THP (Prince)
TU3 1.4
Brand
PSA
PSA
Verdict
AVOID
ACCEPTABLE
Reliability
45
76
Years
2006--2018
1996--2014
Displacement
1598 cc
1360 cc
Layout
I4
I4
Type
Petrol Turbo
Petrol Na
Power
120--270 hp
73--75 hp
Known Issues
2
2
Total Risk Cost
€1,200--€2,800
€500--€1,100

Character

EP6/THP (Prince)

"BMW/PSA joint engine. Timing chain stretch, carbon buildup. 308 GTi/RCZ power but fragile."

TU3 1.4

"15 million TU engines made. Simple cast iron block. Timing belt (not chain). Head gasket can fail on very old units. Incredibly cheap to maintain. 206/207/C3 workhorse. Over-engineered for what it does."

Issues Comparison

EP6/THP (Prince) 2

▲ HIGH
Timing chain stretch (BMW-PSA joint engine) €800--€2,000 60,000 km--120,000 km
● MODERATE
Carbon buildup on intake valves €400--€800 50,000 km--100,000 km

TU3 1.4 2

▲ HIGH
Timing belt (interference engine) €200--€400 60,000 km--90,000 km
● MODERATE
Head gasket weeping (very old units) €300--€700 120,000 km--200,000 km

Models

EP6/THP (Prince) 82

407 — 2004--2009 407 — 2004--2011 C3 A51 2010--2016 Partner B9 2008--2018 3008 T8 2009--2016 308 T7 2008--2013 5008 T8 2010--2017 207 WA/WC 2006--2012 2008 A94 2013--2015 208 A9 2012--2015 508 R8 2019--present 5008 P87 2020--2024 508 R8 2021--present 3008 P64 2024--present 5008 P87 2020--2024 3008 P64 2024--present 207 WA/WC 2006--2012 308 T7 2007--2013 508 W2 2011--2014 308 T7 2010--2013 3008 T8 2013--2016 RCZ T75 2010--2015 208 CA/CC 2012--2015 308 T7 2011--2013 208 A9 2015--2019 308 T9 2015--2020 DS3 A56 2014--2019 308 T9 2015--2018 DS3 A56 2016--2019 208 A9 2013--2019 RCZ T75 2013--2015 208 CA/CC 2013--2019 5008 T8 2010--2017 508 W2 2011--2018 3008 T8 2009--2016 308 T7 2008--2013 RCZ T75 2010--2013 207 WA/WC 2006--2012 208 A9 2012--2015 207 WA/WC 2006--2012 308 T7 2007--2013 207 WA/WC 2009--2012 308 T7 2010--2013 207 WA/WC 2007--2012 207 WA/WC 2006--2012 DS7 E43 2017--present C5 Aircross C84 2019--present 5008 P87 2017--2024 DS4 C44 2021--present 3008 P84 2017--2024 5008 P87 2017--2024 508 W2 2018--present 3008 T84 2017--2024 508 R8 2018--present DS9 — 2021--present 508 W2 2019--present 308 P5 2022--present 308 P5 2021--present 3008 T84 2020--2024 DS9 — 2020--present 508 W2 2019--present 5008 P87 2020--2024 DS7 E43 2019--present DS4 C44 2021--present C5 X E43 2022--present C5 Aircross C84 2020--present 308 P5 2021--present 508 W2 2021--present DS7 E43 2022--present 3008 T84 2020--2024 DS7 E43 2019--present DS9 — 2020--present 508 R8 2018--2022 3008 P84 2020--2024 3008 P84 2020--2024 308 P5 2022--present 308 T9 2013--2018 C4 B7 2015--2018 508 W2 2014--2018 308 T9 2013--2018 308 T9 2015--2017 308 T9 2015--2017

TU3 1.4 10

207 WA/WC 2006--2012 207 WA/WC 2006--2012 Bipper A9 2008--2017 106 1A/1C 1996--2003 206 T1 1998--2012 307 T5/T6 2001--2008 306 N3/N5 1993--2002 Partner M49/M59 1996--2008 C3 FC 2002--2009 206 2A/C 1998--2006
Full EP6/THP (Prince) Report Full TU3 1.4 Report