Toyota Corolla2017

• Toyota's 1.4D diesel engine is robust and frugal on motorway work; typical real-world return 45–50 mpg on longer journeys.
• Median price up 28% year-on-year — strong demand in this segment, but check you're not overpaying versus newer petrol alternatives with lower tax.
• DPF clogging is the headline risk on this engine, especially if previous owner did lots of short urban runs; confirm service history shows successful regenerations, not repeated warning lights.
• Before purchase, request full service records and ask dealer directly: has the DPF been replaced or professionally cleaned, and has EGR valve work been done post-80k km?
• Cold-start timing chain rattle for 10–15 seconds is common and usually harmless, but if it persists beyond warm-up or worsens, budget €800–1,200 for replacement.

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