Fault File
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MG HS

All generations and engines together · 17,147 MOT tests in the 2025 data

Generation

Split by first-registration year. Cars registered in a changeover year can belong to either generation.

How this model wears

MG HSClass average, all tracked models

Known issues

Measured

Computed from DVSA MOT results, all of Great Britain, 2025. Nothing here is opinion.

What testers flag

Share of tests where each item was recorded. The dark tick is the class average across all tracked models; bars are scaled within each group.

Faults with the car itself

The rows that judge the model rather than its keeper. 17,132 tests in this band.

A shock absorber damaged to the extent that it does not function or showing signs of severe leakage
Advisory
3.0%class 2.1%
Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users
Advisory
1.4%class 1.2%
Coolant leak
Advisory
1.2%class 0.0%
Excessive fluctuation in brake effort through each wheel revolution.
Advisory
0.8%class 0.3%
A suspension component excessively damaged or corroded
Advisory
0.6%class 0.0%

Wear, upkeep and luck

Tyres, pads and stone chips say more about how the car was driven and maintained than about how it was built.

Brake disc or drum excessively weakened, insecure or fractured
Advisory
23.9%class 7.0%
A tyre seriously damaged
Advisory
15.2%class 13.1%
Tyre tread depth not in accordance with the requirements
Advisory
11.3%class 18.8%
A brake lining or pad worn below 1.5mm
Advisory
8.8%class 7.2%
Child Seat fitted not allowing full inspection of adult belt
Advisory
4.1%class 2.1%
Nail in tyre
Advisory
3.5%class 1.7%
A brake lining or pad worn below 1.5mm
Fail
2.0%class 1.1%
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Fail
1.8%class 0.7%

Unconfirmed issues

Reported

Owner folklore from forums and the motoring press. Most of it never shows up in an MOT, which is why this section exists at all.

Soft, wallowy ride over bumps

Partly in the MOT data

MG HS road tests have flagged an unsettled, bouncy ride since launch, worse on the lighter petrol version than the heavier PHEV. Auto Express and Honest John both note the car "patters over broken tarmac" and gets "quite bouncy" over a run of bumps, and Parkers describes "woolly steering and unsettled ride" too. That soft factory tune is a character trait when the car is new, not a fault, but it fits with suspension being the fault category that shows up most often in this segment's MOT data. Treat any knocking or clonking on top of the normal softness, rather than the softness itself, as a bush, top mount or damper on its way out.

Reported since launch, all ages · sources: Auto Express, Honest John, Parkers

PTC heater ground wire recall (PHEV)

Plug-in hybrid only

MG issued a UK safety recall (R/2023/050, dated 16 March 2023) covering EHS plug-in hybrids built in the 2020-2022 model years, after finding the ground wire for the PTC cabin heater could work loose, trap its insulation against the bodywork, and create a risk of overheating. Around 3,300 UK cars were affected. The fix is free at an MG dealer. It only applies to the plug-in hybrid, badged EHS on the V5C; the petrol and regular hybrid HS don't appear in the recall register at all.

2020-2022 EHS build years · source: gov.uk vehicle recalls database (DVSA), recall R/2023/050

DCT gearbox hesitation, occasional non-engagement

DCT automatic only

Owners on MG-specific forums describe a brief hesitation on the seven-speed dual-clutch automatic, where the car feels like it's lost drive for a second before power returns, mostly reported on facelifted cars from around 2022 on. A Pakistan-market forum thread describes an outright intermittent failure to engage with an engine fault warning at around 32,000 miles, though UK owners mostly describe it as an odd quirk rather than a breakdown. Posters on the mgevs.com owners' forum reckon MG addressed it with a running change on Phase 2 cars built from roughly March 2024. Manual gearbox cars aren't affected.

Reported on facelift DCT cars, some post-2022 · sources: mgevs.com forum, mg-rover.org forum, PakWheels forum

Infotainment freezes and an unreliable sat-nav

Emerging

The touchscreen system is the most consistently criticised part of MG HS ownership. Honest John says it has seen "more than one report of glitching touchscreens" on the second-generation car, and Auto Express calls the system "clunky and unresponsive" with sat-nav directions that are "often wrong". A real buyer's question on Honest John's Ask HJ describes a December 2025-registered PHEV Trophy needing three trips back to the dealer for a sat-nav fault that still wasn't fully cured. MG hasn't acknowledged a specific fix; budget for an occasional reboot rather than a repair bill.

Reported across both generations, worse on Gen 2 · sources: Honest John, Auto Express, Ask HJ

Hesitant throttle and a coarse petrol engine

Disputed

The 1.5-litre turbo petrol is repeatedly marked down in road tests for a laggy throttle, taking around a second to respond to a prod of the pedal, and for sounding "strained" and "gravelly" when worked hard. Parkers separately calls it a unit that "lacks refinement". None of this is tied to a failure or a repair bill, and owners are split on how much it matters day to day, so weigh it up on the test drive rather than treating it as a fault.

Noted since launch, all mileages · sources: Honest John, Auto Express, Parkers

Viewing one? Ask this

Built from the two sections above.

Drive it hard over a rutted or speed-humped road at low speed. Wallowing or bottoming out just confirms the soft factory tune; a knock or clonk on top of that means a bush, mount or damper is worn.
Check the V5C for HS or EHS, then run the registration through the gov.uk vehicle recall checker. Only the EHS plug-in hybrid carries the 2020-2022 PTC ground wire recall (R/2023/050); an unfixed one carries an overheating risk.
On a DCT automatic, pull away from several junctions and try a roundabout or two. A brief moment where the power seems to disappear then return is the reported dual-clutch quirk; refusal to engage at all is worse and needs investigating.
Poke through every infotainment menu and let the sat-nav run for a few minutes mid-drive. Freezing, lag or wrong directions match the most repeated MG HS owner complaint, especially on 2024-on cars.
Floor it from a standstill and listen at the top of the rev range. A gravelly note and a lazy first second of throttle response is normal for this engine, not a fault, but it's worth knowing before you buy.
Ask for a full service history and any note of a gearbox software update. MG rolled a fix into Phase 2 cars built from around March 2024; earlier cars may not have had it applied.
Read the full MOT history, not just the pass/fail. Repeated suspension advisories on the same car, rather than a one-off, point to the softer end of normal wear tipping into a real fault.

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