EngineMedium
Oil consumption and rough running on the 1.5 petrol
- Typically appears
- 60,000+ miles
- What to inspect
- Check the oil level and idle quality
2013–2024 MG 3 · common problems & known faults
A budget supermini with a long warranty, popular as a first car and second household vehicle.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2013–2024 MG 3 are Oil consumption and rough running on the 1.5 petrol, Clutch wear on ex-learner cars and Paint and trim durability on earlier cars. Most reported issues are medium or low severity, but a pre-purchase inspection is still recommended. Full inspection points, onset mileage and what to check are listed below.
Reliability snapshot
Based on the documented faults on this page for the MG 3.
7.8/ 10
- Critical
- 0
- High
- 0
- Medium
- 4
- Low
- 0
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
TransmissionMedium
Clutch wear on ex-learner cars
- Typically appears
- 50,000+ miles
- What to inspect
- Test the bite point on an incline
BodyMedium
Paint and trim durability on earlier cars
- Typically appears
- Age-related
- What to inspect
- Inspect the paint finish in daylight
SuspensionMedium
Knocks and rattles from bushes and links
- Typically appears
- 60,000+ miles
- What to inspect
- Drive over rough surfaces and listen
Inspecting a MG 3?
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Check this exact carFrequently asked questions
Who buys an MG3?
New drivers and budget buyers who want warranty cover on a cheap car.
What sells it fastest?
Low insurance group, remaining warranty and a tidy presentation.
Where do dealers lose money?
Paint and trim work. Inspect the body carefully before you commit to a retail price.
Sources & further reading
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.