MG's seven-year warranty is one of the main reasons the brand has grown so quickly in the UK. It is long, it can pass to the next owner, and on the electric models the battery has its own separate cover. But it has a mileage cap that some drivers hit well before seven years, and it comes with conditions worth understanding. Below we cover how the MG warranty usually works, what owners tell us goes wrong on MG petrol, hybrid and electric models, and what you can do when the factory cover runs out.
What does the MG 7-year warranty give you?
New MGs sold through the official UK dealer network typically come with a manufacturer warranty of seven years or 80,000 miles, whichever comes first. On many models the first three years have no mileage limit, with the 80,000-mile cap applying after that. It covers manufacturing defects and component failures, rather than wear, damage or servicing.
That headline sits alongside MG's rivals: Kia also offers seven years (with a 100,000-mile cap), while Hyundai offers five years with unlimited mileage. Our guides to the Kia warranty and Hyundai warranty explain how those compare.
A few things catch people out:
- Terms vary by model and registration date. Some older or lower-priced models have been sold with shorter cover, and MG has adjusted its terms over time. Cars imported privately or bought outside the UK dealer network may not carry the UK warranty at all.
- Some parts have shorter cover. Items such as the 12V battery, paintwork, corrosion protection and certain accessories often have their own, shorter terms.
- Your service book decides. Check your warranty booklet, or MG's current published terms, for the exact cover on your car, because terms change.
The MG battery warranty on the MG4, MG5 and ZS EV
On MG's electric models, including the MG4, MG5 EV and ZS EV, the high-voltage battery typically has its own warranty of eight years or 120,000 miles, longer than the main vehicle warranty. That matters, because the traction battery is the single most expensive component on an EV.
Battery warranties usually do two things: they cover outright failure of the pack, and they promise the battery will keep a minimum share of its original capacity during the warranty period. The exact threshold and how it is measured vary, so read the battery section of your booklet carefully. Gradual capacity loss within the promised limit is normal and is not treated as a fault.
Plug-in and full hybrids, such as the HS Plug-in Hybrid and the MG3 Hybrid+, have their own high-voltage battery terms, which may differ from the EV figures. If you're weighing up an older EV, our used EV buying guide explains how to check battery health before you buy.
Does the MG warranty transfer to a used buyer?
Generally, yes. The remaining MG warranty usually stays with the car rather than the owner, so if you buy a three-year-old MG4 or ZS privately, you typically inherit the balance of the seven years or 80,000 miles, and of the battery warranty on an EV.
That can save you a lot of money, but check a few things before you hand over any cash:
- Check the service history. Gaps or late services can put the remaining warranty in doubt.
- Confirm the start date. The warranty runs from first registration, not from the date you buy the car.
- Ask an MG dealer to confirm the status using the registration or VIN, including any outstanding recalls or software updates.
- Check the mileage. A high-mileage example may already be close to, or past, 80,000 miles.
For more on buying used, see our guide to used car warranties.
Servicing: how to keep the MG warranty valid
Like every manufacturer warranty, MG's comes with conditions, and servicing is the big one. The car typically needs to be serviced on time, in line with MG's schedule, using the specified parts and fluids, with the work recorded. Depending on the terms that apply to your car, servicing may need to be done by an MG authorised repairer, so check your booklet before booking an independent garage.
Under UK competition rules, an independent garage can generally service a car under manufacturer warranty, provided it follows the manufacturer's schedule and uses parts of matching quality. In practice, a missed or late service is a common reason manufacturers query a claim, so keep every invoice.
Also keep up with software updates. A number of MG fixes, particularly for infotainment, driver assistance and charging behaviour, are delivered as updates at the dealer or over the air.
What the MG warranty typically does not cover
The manufacturer warranty is there for defects, not for running costs. It typically excludes:
- Wear items such as brake pads and discs, tyres, wiper blades and clutch friction material
- Servicing and routine fluids and filters
- Damage from accidents, potholes, misuse or neglect
- Faults caused by non-approved modifications or incorrect repairs
- Normal battery capacity loss within the stated limits
Our guide to wear and tear explains where the line between wear and failure usually falls.
What tends to go wrong on an MG?
MG's current range is relatively young in the UK, so long-term data is still building. The issues below are ones owners commonly report, rather than evidence that any particular car is unreliable, and many are fixed under warranty or by a software update.
- Infotainment and software glitches. Screens freezing or rebooting, phone connection drop-outs and over-sensitive driver assistance alerts are among the most commonly mentioned niggles on the MG4, ZS and HS.
- 12V battery drain. Some EV and hybrid owners report the small 12V battery going flat, which can stop the car starting even when the main battery is full.
- Brake wear. Discs on EVs can corrode or wear unevenly because regenerative braking means the friction brakes are used less. This is treated as wear, not a defect.
- Sensors and cameras. Parking sensors, radar and camera faults can trigger warnings or disable assistance features.
- EV charging faults. Charging that stops early, will not start, or works slowly can point to the charge port, the onboard charger or software.
- HS Plug-in Hybrid issues. Some owners report hybrid system warnings, charging problems and gearbox hesitation, often addressed with updates.
| Repair (typical MG petrol, hybrid or EV) | Estimated cost (independent garage) | Notes |
|---|---|---|
| 12V battery replacement | £120 – £250 | Higher if registration or coding is needed |
| Front brake discs and pads | £200 – £400 | Wear item, excluded from warranties |
| Parking sensor or camera | £100 – £400 | Radar units and calibration cost more |
| Infotainment unit | £600 – £1,500 | Often a software fix first |
| EV onboard charger | £1,000 – £2,500 | Needs a high-voltage trained technician |
| Turbocharger (petrol models) | £900 – £1,800 | See our turbo cost guide |
These are estimated 2026 UK independent-garage ranges, not quotes. Main dealers usually charge more, and parts availability can affect the price. For more figures, see our repair costs hub.
What happens after the MG warranty ends?
Seven years is long enough that many owners forget the warranty is there. When it ends, every repair bill becomes yours, just as the car is more likely to need something.
Watch the mileage, not just the date. The 80,000-mile cap is lower than some rivals, and a car covering 15,000 to 20,000 miles a year can reach it in year four or five. Cover ends at whichever limit you hit first, even though the seven-year headline suggests otherwise.
The battery warranty may outlast the main one. On an MG EV, the high-voltage battery can still be covered by MG after the vehicle warranty has ended, but the motor electronics, charger, air conditioning and suspension usually are not.
Plan ahead. Start comparing options two or three months before the cover ends. Buying cover after a fault has appeared rarely helps, because a pre-existing fault won't be covered. Our comparison of extended and manufacturer warranties explains the differences.
What independent cover looks like on an MG
Once the manufacturer cover ends, an independent mechanical breakdown warranty can help with the cost of eligible repairs. A warranty is not insurance: it is designed for sudden mechanical and electrical failures, not wear, damage or servicing. Our MG warranty page sets out how ClearPath cover works on MG petrol, hybrid and electric models.
- 1, 2 or 3-year terms, with an instant online quote for cars up to 15 years old and 150,000 miles
- Up to £3,000 per eligible claim, including parts, labour and VAT, with unlimited eligible claims
- Labour up to £100 an hour at any VAT-registered UK garage, with a £100 excess per authorised claim
- Turbo cover up to 7 years or 80,000 miles
- Hybrid and EV high-voltage battery cover up to 9 years or 70,000 miles, with cell replacement up to £1,000 on hybrids and £1,500 on EVs; battery capacity loss is excluded
Repairs must be authorised by ClearPath before any work starts, and wear items are excluded. Always check your cover schedule to see whether a specific part is included, and read what's covered before you choose. For EV and hybrid details, see our EV warranty and hybrid warranty pages.
How much does a MG extended warranty cost?
There is no fixed price, because extended cover is priced on the car rather than the driver. Because MG's warranty runs for seven years or 80,000 miles, most owners only need extended cover late in the car's life, or earlier if they hit the mileage cap. Many MGs on UK roads are electric, and cover for an EV is priced on its expensive electrical parts (the onboard charger, drive motor and power electronics) rather than on an engine and gearbox. ClearPath's battery-cell replacement limit is £1,500 for electric cars and £1,000 for hybrids, with battery cover up to 9 years or 70,000 miles, so check what remains of MG's own battery warranty before deciding what you need.
The four things that move a MG quote most are:
- Age. The older the car, the more likely a component is to fail, so age is usually the biggest factor.
- Mileage. High mileage raises the price, and the car must be within the eligibility limits (ClearPath quotes cars up to 15 years old and 150,000 miles).
- Fuel type and drivetrain. Automatic gearboxes, turbocharged engines, diesels and hybrid or electric systems carry more expensive parts.
- Length of plan. A longer plan usually works out cheaper per year than buying one year at a time.
Whoever quotes you, a dealer or an independent provider, compare the same four numbers alongside the price: the limit per claim, the excess, the labour rate the policy pays, and whether there is a cap on total claims. ClearPath covers up to £3,000 per authorised claim, with a £100 excess, labour up to £100 an hour and no limit on the number of eligible claims. Our guide to how much a car warranty costs explains pricing in more detail, and you can get an instant price for your exact car on our MG warranty page.
Is the MG warranty any good?
The MG warranty is a genuine strength: seven years or 80,000 miles on the car, typically eight years or 120,000 miles on EV batteries, and usually transferable to the next owner. Keep the servicing and software up to date, keep the paperwork, and keep an eye on the mileage cap as well as the calendar. When the factory cover is nearing its end, compare your options in good time. You can see prices for your car with an instant quote, or compare our plans.
