The CLA (compact four‑door 'coupe') in 2018 form is a Mercedes‑badge, comfort‑focused car; petrol automatics from this period commonly use a 7‑speed Mercedes gearbox (some are dual‑clutch, some torque‑converter depending on engine). It’s a pleasant, refined drive but petrol engines are generally thirstier than diesel equivalents and servicing/parts cost more than mainstream makes. Pay particular attention to the gearbox service history — DCT units need periodic fluid/mechatronic attention — and remember rear headroom/boot are more limited due to the sloping roofline.

• Automatic gearbox service history — confirm whether it’s a 7G‑DCT or 7G‑Tronic and check for evidence of fluid/mechatronic servicing; test for smooth shifts and low‑speed judder.
• Engine for oil leaks or unusual noises on cold start; if turbocharged, check for blow‑by and boost response.
• Rear passenger headroom and boot capacity — inspect for scuffs and cramped seating caused by the coupe roofline.
• Electrical systems (infotainment, camera, parking sensors, start/stop and keyless entry) for intermittent faults.
• Brake and suspension wear — listen for creaks, check for uneven tyre wear and examine brake disc/pad condition.