1.4 HDi (DV4 diesel)
2005–2010 · diesel · 1398cc · 54hp
Engine codes: DV4, 2WZ-TV
Reliability, common problems and owner reviews for the Toyota Aygo 1.4 HDi (DV4 diesel). Check this before you buy used.
The early 1.4 HDi (PSA DV4) was a frugal but rare and slightly incongruous option in a city car — economical, generally sturdy, but a modern common-rail diesel doing the short urban trips that punish DPF/EGR systems. Injector wear and EGR sooting are the watch items. Only worth it for a high-mileage commuter; for typical city use the 1.0 petrol is far more sensible and cheaper to keep.
Same engine, other cars
This is the same physical engine (DV4) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
EGR sooting and injector wear, worse on short trips.
Fix / Workaround: Clean EGR; injector test; quality fuel.
Repair cost: €150–€700
Typically appears after: 120,000 km
Mileage Thresholds
After 130,000 km: EGR/injector window.
Pre-Purchase Checklist
- ☐High-mileage commuters only
- ☐EGR + injector history
- ☐1.0 petrol is the sensible choice
Frequently asked questions
Is the Toyota Aygo 1.4 HDi (DV4 diesel) reliable?
Maint. Sensitive — The early 1.4 HDi (PSA DV4) was a frugal but rare and slightly incongruous option in a city car — economical, generally sturdy, but a modern common-rail diesel doing the short urban trips that punish DPF/EGR systems. Injector wear and EGR sooting are the watch items. Only worth it for a high-mileage commuter; for typical city use the 1.0 petrol is far more sensible and cheaper to keep.
What are the common problems and reviews for the Toyota Aygo 1.4 HDi (DV4 diesel)?
The most commonly reported problems: EGR / injectors.
Is a used Toyota Aygo 1.4 HDi (DV4 diesel) worth buying?
Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.