2018 FORD Focus 1.0L Ecoboost (Fox, Changyi, or combination codes depending on market)/1.5L Ecoboost (Dragon family, e.g. XTDA) (C346)
C346 / Hatchback / Sedan / Wagon (varies by market) / Global / primarily Europe, North America, and select global markets
1.0L Ecoboost (Fox, Changyi, or combination codes depending on market)1.5L Ecoboost (Dragon family, e.g. XTDA)2.0L Ecoboost (Puma, in North America)2.0L Duratec (e.g. NE) naturally aspirated gasoline1.5L TDCi (Fox diesel, Europe mainly)2.0L TDCi (Puma diesel, Europe mainly)Exact year/trim recordSilver
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Minor turbocharger issues in early Ecoboost engines if not properly maintained
- Dual-clutch PowerShift transmission sometimes criticized for shudder or hesitation (market specific)
- DPF clogging on diesel TDCi engines with short trips
First checks
- Verify oil change and turbocharger maintenance records
- Inspect transmission behavior especially on PowerShift automatics
- Check DPF status for diesel markets
Before replacing parts
- Save fault codes and freeze-frame data before clearing anything.
- Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
- Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.
Important notes
- 2018 Ford Focus global model is mainly the Mk3 facelift introduced 2015, with markets varying in engine and transmission choices.
- North America primarily offered 2.0L naturally aspirated gasoline and 2.0L Ecoboost engines with torque converter automatics.
- Europe and other global markets have wider engine options including diesels and 1.0/1.5L Ecoboost turbo engines.
- Oil capacity and type depend on engine, verify exact market and engine variant for maintenance.