2.7 HDi V6 (DT17)
2005–2010 · diesel · 2720cc · 204hp
Engine codes: DT17, UHZ
Reliability, common problems and owner reviews for the Peugeot 407 2.7 HDi V6 (DT17). Check this before you buy used.
The 2.7 HDi V6 — powerful and smooth but complex and trouble-prone between 100,000–150,000 km: it dislikes temperature extremes, frequently has DPF-system faults, and the complex EGR setup gives trouble. Expensive to fix. The 2.0 HDi is the smarter 407 diesel.
Known Issues
Frequent DPF-system defects, especially 100,000–150,000 km.
Fix / Workaround: Motorway runs; specialist DPF work; clean/replace.
Repair cost: €400–€1800
Typically appears after: 100,000 km
Complex EGR system gives recurring trouble.
Fix / Workaround: Clean/replace EGR components.
Repair cost: €200–€900
Mileage Thresholds
After 100,000 km: DPF/EGR issues cluster.
Pre-Purchase Checklist
- ☐Check DPF/EGR history thoroughly
- ☐Expensive to maintain
- ☐Prefer the 2.0 HDi
Frequently asked questions
Is the Peugeot 407 2.7 HDi V6 (DT17) reliable?
Problematic — The 2.7 HDi V6 — powerful and smooth but complex and trouble-prone between 100,000–150,000 km: it dislikes temperature extremes, frequently has DPF-system faults, and the complex EGR setup gives trouble. Expensive to fix. The 2.0 HDi is the smarter 407 diesel.
What are the common problems and reviews for the Peugeot 407 2.7 HDi V6 (DT17)?
The most commonly reported problems: DPF system faults, Complex EGR faults.
Is a used Peugeot 407 2.7 HDi V6 (DT17) worth buying?
Known design issues and recurring faults that were never fully resolved. Buy only with eyes open.