Mercedes-Benz CLA2018

• Diesel engines offer strong fuel economy and torque, but DPF clogging is frequent on urban-driven examples—confirm service history shows regular motorway miles to prevent costly €1,200–€2,000 regeneration work.
• Median price up 11.8% year-on-year suggests steady demand, but this diesel sits at the higher end of the CLA range; petrol competitors may offer better long-term value and fewer emissions-system headaches.
• Fuel injector carbon buildup and SCR/AdBlue faults are common on this generation—corrosion accelerates in Irish salt-spray conditions, risking limp-mode failures and expensive heater replacement; reliability score reflects these structural weaknesses.
• Before purchase, request full service records proving regular DPF regens and AdBlue top-ups; have an independent Mercedes diesel specialist scan for stored fault codes in the SCR and fuel-injection systems—do not rely on dealer diagnostics alone.

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