C394, compare every engine
All 2 variants in this chassis on one screen. Identical body, identical electronics, identical suspension. Everything below is a consequence of which engine is in the bay.
Full comparison
| Variant | Years | Power | Torque | Fuel | Transmissions | Economy | Risk | Issues | Worst single repair | Band | Good buy | Verdict |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.0 TDCi G6DG | 2008–2012 | 136 PS | 320 Nm | diesel | 6-sp manual, 6-sp PowerShift | 6–7.5 | R3 | 5 | €2,800 | €3,800–€9,200 | €4,900 | Buy with conditions |
| 2.5 T5 B5254T | 2009–2012 | 200 PS | 320 Nm | petrol | 6-sp manual, 5-sp automatic | 10–12 | R3 | 2 | €1,300 | €4,200–€9,800 | €5,350 | Buy with conditions |
Issue overlap by engine. The row that decides it
| Issue | Cost | G6DG | B5254T |
|---|---|---|---|
| PowerShift wet dual-clutch shift faults and control module failure | €250–€2,800 | ● | · |
| DPF clogging and forced regeneration | €250–€1,800 | ● | · |
| Variable-vane turbo actuator sticking | €400–€1,200 | ● | · |
| EGR cooler leak | €400–€1,000 | ● | · |
| Carbon buildup on intake valves | €400–€700 | · | ● |
Only engine-differentiating issues are listed. 1 further issues apply to every engine in this chassis. Cooling, electrics, suspension and the gearbox, and are on the chassis page.
Cross-chassis comparison
To compare against a different chassis: an E92 335i against an E90 330d, say, use the general comparison tool, which takes up to four variants from anywhere in the database and encodes them in the URL so the comparison can be shared.