2019–2025 MG HS · common problems & known faults

Dual-clutch hesitation and jerky low-speed shifts

Typically appears

40,000+ miles

What to inspect

Drive in traffic from cold

Infotainment lag, freezing and camera faults

Typically appears

Any

What to inspect

Test every screen function twice

PHEV battery health and charging faults

Typically appears

Any

What to inspect

Charge the car fully and confirm the electric range achieved

Ride harshness and early bush wear

Typically appears

50,000+ miles

What to inspect

Listen for knocks over speed bumps

Coolant loss and sweet smell under the bonnet due to thermostat housing or water pump leaks on the 1.5 T-GDI.

Typically appears

30,000-50,000 miles

What to inspect

Check the coolant expansion tank level. Shine a torch down the left side of the engine block to look for pink crusting around the thermostat housing.

Rattles and creaks from the panoramic sunroof assembly, alongside sticking or grinding roof blinds.

Typically appears

10,000-30,000 miles

What to inspect

Open and close the sunroof blind fully, listening for grinding. Push up gently on the sunroof glass from inside to check for excessive play or creaking.

Keyless entry failure on the exterior door handles caused by water ingress damaging the microswitch.

Typically appears

20,000-40,000 miles

What to inspect

With the smart key in your pocket, press the rubber button on both the driver and passenger exterior door handles to ensure the central locking engages and disengages.

Premature rear brake disc and pad wear caused by the electronic parking brake (EPB) dragging or auto-hold calibration issues.

Typically appears

15,000-25,000 miles

What to inspect

Run a finger over the cold rear brake discs to feel for deep scoring or a pronounced outer lip. Compare the rear alloy wheels to the front for excessive brake dust.