2.0 TDCi (DW10)
2004–2010 · diesel · 1997cc · 136hp
Engine codes: DW10, G6DA, G6DB, RHR
Reliability, common problems and owner reviews for the Peugeot 407 2.0 TDCi (DW10). Check this before you buy used.
The 2.0 HDi — the most reliable engine in the 407 range, capable of 200,000+ miles with regular oil and motorway-supported DPF regens. Specific niggles: a glow-plug relay that can fail (burning out multiple plugs), repeat EGR-valve failures (often from low-rev driving), and throttle-butterfly sticking causing limp mode. Strong with maintenance.
Same engine, other cars
This is the same physical engine (DW10) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
Difficult cold starting, stalling and power loss often trace to the turbo actuator.
Fix / Workaround: Diagnose/replace turbo actuator.
Repair cost: €200–€800
Typically appears after: 150,000 km
DPF blocks on short trips.
Fix / Workaround: Motorway runs; clean/replace.
Repair cost: €300–€1000
DMF wears with age.
Fix / Workaround: Replace DMF + clutch.
Repair cost: €600–€1100
Relay fails and burns out multiple glow plugs.
Fix / Workaround: Replace relay + affected plugs.
Repair cost: €150–€500
Typically appears after: 120,000 km
Repeat EGR failure (esp. from low-rev driving); throttle butterflies stick → limp mode.
Fix / Workaround: Clean/replace EGR; clean throttle housing; drive at higher revs.
Repair cost: €150–€600
Mileage Thresholds
After 200,000 km: Commonly exceeded with maintenance.
Pre-Purchase Checklist
- ☐The diesel to choose over the 1.6 TDCi
- ☐Check cold starting / turbo actuator
- ☐DPF history; idle DMF check
- ☐The reliable 407 engine
- ☐Check glow-plug relay / EGR history
- ☐DPF history; prefer motorway use
Frequently asked questions
Is the Peugeot 407 2.0 TDCi (DW10) reliable?
Maint. Sensitive — The 2.0 HDi — the most reliable engine in the 407 range, capable of 200,000+ miles with regular oil and motorway-supported DPF regens. Specific niggles: a glow-plug relay that can fail (burning out multiple plugs), repeat EGR-valve failures (often from low-rev driving), and throttle-butterfly sticking causing limp mode. Strong with maintenance.
What are the common problems and reviews for the Peugeot 407 2.0 TDCi (DW10)?
The most commonly reported problems: Turbo actuator / cold-start faults, DPF clogging, Dual-mass flywheel wear, Glow plug relay failure, EGR / throttle-butterfly (limp mode).
Is a used Peugeot 407 2.0 TDCi (DW10) worth buying?
Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.