Smart #5 HX51 — Problems & Common Faults

The smart #5 (HX51, from 2024) is so far the largest model of the new, Geely-based smart generation and a break with the brand's small-car image: a 4.70 m long, family-friendly electric SUV with an angular, off-road-flavoured design. The technical highlight is the 800-volt architecture, which, combined with batteries up to around 100 kWh, enables very high DC charging rates (peaking above 400 kW) and ranges of over 500 km – a clear step up from the #1 and #3. It is offered as rear-wheel drive and as a powerful all-wheel-drive / Brabus variant with over 430 kW. The #5 positions itself as a full-size electric SUV in the upper segment with a large amount of space and extensive equipment. As the model only launched in 2024, there is barely any solid long-term data; expected and typical for new electric platforms are early software issues: infotainment bugs, fine-tuning of assistance, and refinement of charging curves and pre-conditioning, which are improved via over-the-air updates. Geely's fundamental drivetrain and charging technology is considered mature. Anyone buying early should expect that detail functions and charging behaviour will still change noticeably via updates in the first model years – a car with a current software level and documented update history is clearly preferable. Also check the recall history via the VIN. The high purchase price and the steep initial depreciation usual for new electric SUVs argue rather for buying as a young used car once supply grows. Market status 2026: as a very young vehicle it is available almost only as new or nearly-new stock; the used market and reliable dependability figures still have to develop. For buyers seeking a modern, fast-charging 800-volt SUV with a large amount of space it is technically interesting – given the thin base of experience, patience, a thorough test drive and a check of the software and update status are advisable.