BatteryHigh
EV battery health and charge-rate variation
HV battery module work£1,200–£8,000
Inspect · Run a state-of-health check and test a rapid charge
2017–2025 MG ZS · common fault repair costs
What the known faults on this MG ZS typically cost to put right at a UK independent garage · use the figures to price risk before you bid, and to justify a reduction when something shows up on inspection.
Cost at a glance
- Most expensive fault
- £1,200–£8,000
- Top three risks, from
- £2,050
- Worst case, everything
- £18,200
The single priciest documented job on the 2017–2025 MG ZS is hv battery module work at £1,200–£8,000. Few cars need every repair listed here · treat £3,570–£18,200 as the full exposure if one arrived with all of them.
Cost per fault
ExteriorLow
Front charging port door sticking or failing to latch on EV models
Charging / power electronics repair£600–£2,600
Inspect · Press the MG badge on the front grille to release the charge port door. Ensure it springs open smoothly and clicks securely shut without requiring excessive force.
BodyLow
Paint quality and trim fit on earlier cars
Body & corrosion repair£250–£1,800
Inspect · Inspect panel finish and shut lines in daylight
TransmissionMedium
Jerky gear shifts and low-speed hesitation on 1.0T automatic models
Clutch & dual-mass flywheel£700–£1,600
Inspect · Select Drive and Reverse repeatedly on a flat surface to feel for excessive engagement delay, then perform a slow-speed crawl test to check for clutch judder.
ElectricalMedium
Infotainment freezing and software glitches
Infotainment repair or software fix£120–£1,200
Inspect · Cycle every function and confirm software updates are applied
SuspensionMedium
Bush and damper wear on poor road surfaces
Suspension refresh (per axle)£250–£1,100
Inspect · Listen over broken tarmac
Climate ControlMedium
Air conditioning blowing warm due to condenser stone damage
Suspension refresh (per axle)£250–£1,100
Inspect · Set the climate control to maximum cold. Ice-cold air should blow from the vents within 60 seconds. Shine a torch through the lower front grille to check the condenser for impact damage or oily residue.
BrakesMedium
Severe pitting and corrosion on rear brake discs on EV models
Brakes (discs, pads, caliper)£200–£800
Inspect · Visually inspect the rear brake discs through the alloy wheel spokes. Look for heavy rust scoring or a pronounced lip caused by underuse due to regenerative braking.
Ranges are indicative parts-and-labour costs at a UK independent garage, inclusive of VAT. Franchised dealers typically sit 40–80% higher, and prestige or electrified variants sit at the top of each band. Always get a written quote before committing.
Inspecting a MG ZS this week?
Build a tickable checklist for the exact car in front of you, record faults with photos, and hand the buyer a report.