Longbridge-tuned handling, budget price tag
The MG6 was the first car from the SAIC-revived MG brand, built at Longbridge from 2011 to 2016. It offered a spacious hatchback with keen pricing but suffered from budget build quality in early models. The 2015 facelift significantly improved matters. Values are very low on the used market, reflecting limited brand cachet and a small dealer network.
We track 5 known issues across the MG 6 range, including 1 rated as safety-critical. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a MG 6? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
MK1 (2011–2016) — Petrol options included the 1.8 Petrol, 1.8 Petrol (variant), with 1.9 Diesel on the diesel side. Our database flags 5 known issues on this generation, 1 of which are rated as safety-critical. The most significant concern is Brake pipe corrosion (£200–£500 to address).
Brake pipes on the MG6 corrode at an unusually rapid rate compared to other vehicles, particularly the rear brake lines running under the fuel tank. MOT data shows brake pipe corrosion failures occurring at 88.1 times the fleet average, with cases documented from as early as 20,000 miles. The corrosion appears to be accelerated by poor protective coating and exposure to road salt, making this a significant safety concern on cars over 5 years old.
Corroded brake pipes can fail without warning, causing complete loss of braking ability and a potentially fatal accident. Emergency repair requires immediate replacement of affected pipes. The car is not safe to drive if brake pipe corrosion is suspected.
Check brake disc condition for lipping or scoring. Test braking at moderate speed for pulling to one side or vibration through the steering wheel. Review MOT advisories for brake-related items.
The MG6 suffers from premature failure of suspension bushes, ball joints, and anti-roll bar links. MOT data shows suspension component failures at up to 88.1 times the fleet average, with both wear and corrosion being contributing factors. The combination of poor-quality rubber compounds and inadequate corrosion protection means suspension components frequently fail before 60,000 miles.
Worn suspension components affect handling and braking performance, making the car unsafe in emergency manoeuvres. Complete failure of a ball joint or anti-roll bar link can cause loss of control. Typical repair involves replacing multiple components simultaneously.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
Front and rear coil springs on the MG6 are prone to fracturing, with MOT data showing failures at 88.1 times the fleet average. The fractures typically occur in the lower coils and appear to be caused by corrosion weakening the spring steel. This is a common issue across the generation and can occur from relatively low mileages.
A fractured spring reduces ride height on the affected corner and compromises handling and braking stability. The broken spring end can damage other components including brake lines or fuel lines. The car remains driveable but handling is unpredictable.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
The Electronic Stability Control (ESC) system on petrol MG6 models develops faults that trigger the malfunction indicator lamp. The fault typically involves wheel speed sensors or the ABS/ESC control module, and while the car remains driveable, the stability control system is disabled.
While the car remains safe to drive, the stability control system that helps prevent skids and loss of control is disabled. This increases accident risk in wet or slippery conditions. Repair typically requires diagnostic testing to identify the specific fault before parts replacement.
Check all electrical functions systematically: windows, mirrors, lights, infotainment, heated seats, air conditioning. Look for any warning lights on the dashboard. A diagnostic scan before purchase can reveal stored fault codes.
Brake discs on the MG6 wear at an accelerated rate compared to other vehicles, with MOT data showing disc wear failures at 41.3 times the fleet average. The discs appear to be made from softer material that wears quickly, leading to replacement requirements often before 40,000 miles. This is combined with brake pad consumption at 41.3 times the fleet average on diesel variants.
Worn brake discs reduce braking effectiveness and must be replaced when they reach minimum thickness. The accelerated wear rate means higher than normal maintenance costs. Severely worn discs can damage brake pads and lead to brake failure if ignored.
Check brake disc condition for lipping or scoring. Test braking at moderate speed for pulling to one side or vibration through the steering wheel. Review MOT advisories for brake-related items.
For the full breakdown of all 5 tracked issues with repair costs, see the MG 6 common problems page.
Based on 12k real DVSA MOT tests, the MG 6 fails more often than average on several items. The biggest outlier is anti-roll bar links worn at 38x the fleet average, followed by abs fault (18x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full MG 6 MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 10k miles) typically costs £45–£80 at an independent garage.
See the full MG 6 service schedule for every interval and cost breakdown.
The MG 6 has some well-documented weak points, including 1 safety-critical issue that demand careful checking. The right example, properly maintained, can still be a sound purchase — but cutting corners on the pre-purchase inspection is not advisable. The 2015-2016 facelifted DTi-Tech diesel models are significantly better than anything that came before. They gained a cleaner interior, improved build quality, LED lights and better equipment. Avoid pre-2013 petrol models which had the weakest cabin quality and less efficient engines.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific MG 6, we cross-reference the exact variant, engine and age against our database of 5 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 5 known MG 6 issues. We are not affiliated with any source listed.