EP6/THP (Prince)
PSA · 1.6L Turbo I4
2006–2018
"BMW/PSA joint engine. Timing chain stretch, carbon buildup. 308 GTi/RCZ power but fragile."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
Timing chain stretch (BMW-PSA joint engine)
▸Cold start rattle, timing issues
EP6/THP chain stretches. Worse in earlier production. BMW N13 is same engine with similar issues.
Any EP6 purchase: verify chain status. Common repair at French brand Greek workshops.
Carbon buildup on intake valves
▸Rough idle, hesitation, cold start misfires
Direct injection = carbon. Worse than modern dual-injection engines.
Walnut blast at 60k km. Well-known at Peugeot/Citroën workshops in Greece.
This report covers the combustion engine only. Battery and electric motor reliability are not included.
Models with EP6/THP (Prince) 82
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Stage 1 easy but chain risk
Frequently Asked Questions
Is the PSA EP6/THP (Prince) reliable?
The PSA EP6/THP (Prince) scores 45/100 with a verdict of AVOID. It has 2 documented issues with total repair costs between €1,200 and €2,800.
What are the common problems with the EP6/THP (Prince)?
The most common issues are:
- Timing chain stretch (BMW-PSA joint engine) — high, repair cost €800–€2,000, 60,000 km–120,000 km
- Carbon buildup on intake valves — moderate, repair cost €400–€800, 50,000 km–100,000 km
What cars use the PSA EP6/THP (Prince)?
How much does it cost to repair the EP6/THP (Prince)?
Total potential repair costs for all 2 known issues range from €1,200 to €2,800. The most expensive issue is typically .
What years was the EP6/THP (Prince) produced?
The PSA EP6/THP (Prince) was produced from 2006 to 2018. It is a 1598cc I4 petrol turbo engine.
Scores are calculated from documented issues, repair costs, and failure patterns across thousands of owner reports and technical sources. Learn about our methodology. Always inspect before you buy.