Mercedes-Benz E-Class2017

• Diesel engines offer strong fuel economy and torque, but this 2017 E-Class is prone to DPF clogging on urban/short-run driving — confirm full service history and recent regeneration cycles.
• At €19,750 median, pricing has risen 12.9% year-on-year; median mileage of 186k km is realistic for age, so no red flags on odometer, but margins are tightening for buyers.
• EGR valve carbon deposits and injector stiction are recurring issues on this generation — ask dealer for emissions test results and cold-start performance reports before committing.
• Before buying, request a pre-purchase inspection focusing on DPF condition, last regeneration date, and diagnostic scan for fault codes; skip any car with unknown service gaps or no DPF history.
• Mercedes E-Class holds residual value well in Ireland, but diesel servicing costs are higher than petrol competitors; factor in potential DPF and injector work into ownership budget.

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