The 2023 CLA line uses modern turbo petrol engines paired to automatic gearboxes (some versions use a dual‑clutch 7‑speed, others an 8‑speed torque‑converter), and some petrol variants include a 48V mild‑hybrid setup for smoother stop/start. Expect typical Mercedes running costs and dealer servicing prices, and note the CLA’s 4‑door coupé shape means rear headroom and boot opening are more limited than a conventional saloon or estate.

• Automatic gearbox behaviour and service history — check for smooth shifts, no jerking or delays (DCT models can show mechatronic issues if not serviced).
• If the car has the 48V mild‑hybrid system, verify start/stop operation and look for any warning lamps related to the hybrid module/battery.
• Rear-seat space and ISOFIX access — confirm a child seat fits comfortably and that rear passengers have usable headroom.
• Tyre and suspension condition — many CLAs wear low‑profile tyres and firmer AMG‑style suspension; check for uneven tyre wear and knocks over bumps.
• Infotainment and camera/sensor operation — verify MBUX touchscreen responsiveness, reversing camera and parking sensors all work correctly.