Leapmotor B10 BEV Mk1

Several early B10 owners have reported their onboard charger blowing fuses when connected to AC chargers, including home wallboxes. Leapmotor has confirmed in at least one long-term test that the OBC needed full replacement. The root cause remains unclear, though moisture ingress and manufacturing inconsistency have been suggested. On comparable EVs, OBC replacement costs range from €1,500 to €3,500 including labor. Currently covered under the 4-year warranty, but a concern for out-of-warranty buyers. DC fast charging is typically unaffected as it bypasses the OBC.

A firmware bug can cause the B10 to believe a V2L adapter or charging cable is connected when nothing is plugged in. The car then locks the parking brake and refuses to shift into drive or reverse. Owners have reported this occurring in motion at a roundabout, requiring an emergency stop. The suspected trigger is moisture entering the charging port during rain or humid conditions. Workarounds include disconnecting the 12V battery for 15 minutes to reset the system, or having a technician unplug the onboard charger controller. Leapmotor has acknowledged the issue and OTA software updates are expected to address it, but it has not been fully resolved for all owners as of early 2026.

The lane-keeping assist system on the B10 is widely criticized in reviews and owner forums. Rather than gentle corrections, the system sharply steers toward the edge of the lane or into oncoming traffic when it misjudges the car's position relative to lane markings. On narrow country roads this can be startling and potentially dangerous. The system also reactivates quickly after being manually disabled. Leapmotor's ADAS appears calibrated for wider Chinese and Asian roads and has not been fully adapted to narrower European road conditions. An OTA update in early 2026 included ADAS refinements, but many owners still report the system as overly intrusive. The financial cost is minimal (disable the feature), but the safety concern is significant.

Multiple owners and long-term testers report that steering and throttle response settings revert to defaults overnight, only noticed once on the road. Apple CarPlay and Android Auto (added via OTA in early 2026, not available at launch) suffer intermittent wireless connectivity failures, sometimes requiring a full system reset. Some OTA updates have failed to install properly, requiring dealer intervention over multiple days. False notifications about charging or V2L activity appear while driving. The infotainment system, built on a Snapdragon 8155 chip, is generally responsive but the software layer lacks the polish of established competitors. Most issues are addressable via future OTA updates.

Owners on the Leapmotor Forum report that door seals do not sit flush against the car's frame, leaving visible gaps. At motorway speeds, wind noise becomes prominent, particularly around the wing mirrors. Some owners describe rain water entering the cabin around seal edges or hearing water running inside the B-pillars during heavy rain. Aftermarket sealing strip kits are already available from third-party suppliers, suggesting this is a recognized issue. Dust mixed with morning dew has been reported forming a gritty paste underneath seal strips, worsening the fit over time. Professional adjustment or seal replacement typically costs €100-400.

Like many modern EVs, the B10 draws power from its 12V auxiliary battery for standby functions. If the DC-DC converter does not properly maintain the 12V battery, or if a software bug keeps systems awake, the battery can drain over several days of parking. Disconnecting the 12V battery negative terminal for 15 minutes resets the system as a temporary fix. Replacement of the 12V battery costs approximately €150-350. This is a common EV issue not unique to Leapmotor, but the limited dealer network can make roadside assistance more complicated.