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MG Magnette Reliability, MOT Pass Rate & Common Faults

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Is the MG Magnette reliable? We analysed 4,082 real MOT tests across 613 vehicles to find out.

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Data last updated: · Based on 4,082 real MOT tests
MOT Pass Rate
83.0%
Typical Mileage
51,082mi
Annual Mileage
415mi/yr
Est. Lifespan
92yrs

The MG Magnette is above average for reliability based on real UK MOT data. Common problems include brakes imbalanced across an axle, windscreen washer provides insufficient washer liquid and parking brake: efficiency below requirements. Here's everything you need to know before buying a used MG Magnette.

MG Magnette Number Plates

Number plates registered to a MG Magnette. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.

MG Magnette MOT Pass Rate by Year

How likely is a MG Magnette to pass its MOT? Here's the pass rate for each registration year, newest first.

82.5%
1967
89.2%
1966
81.5%
1965
87%
1964
81.1%
1962
82.7%
1960
79.9%
1959
81.6%
1958
81.9%
1957
84.8%
1956
78.7%
1955
77.5%
1954
94.1%
1935
97.7%
1934

MG Magnette Problems — What Goes Wrong?

The most common reasons a MG Magnette fails its MOT, ranked by how often they occur. Check for these problems before you buy.

Brakes imbalanced across an axle 151
Windscreen washer provides insufficient washer liquid 118
Parking brake: efficiency below requirements 94
brake binding 82
Suspension component mounting prescribed area is excessively corroded 76
brake application uneven 75
brake recording little or no effort 63
Suspension spring mounting prescribed area is excessively corroded 52
Windscreen wiper does not clear the windscreen effectively 44
Headlamp not working on dipped beam 43

MG Magnette Mileage — What's Normal?

How many miles does a typical MG Magnette owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.

Low usage
138 mi/yr
Typical
415 mi/yr
Average
985 mi/yr
Heavy usage
996 mi/yr

MG Magnette MOT Data by Registration Year

Full breakdown of pass rate and mileage for each year. Use this to compare the MG Magnette year you're looking at.

Year Tests Pass Rate Low Mi. Typical Mi. High Mi.
1967 120 82.5% 28,816 44,135 89,054
1966 93 89.2% 51,389 65,121 86,844
1965 81 81.5% 60,338 80,304 85,302
1964 92 87.0% 63,124 76,262 84,822
1962 53 81.1% 26,702 32,855 41,960
1960 52 82.7% 42,298 57,516 76,840
1959 169 79.9% 8,844 24,294 59,564
1958 1,002 81.6% 26,016 52,404 71,986
1957 686 81.9% 29,166 50,804 70,214
1956 388 84.8% 12,506 39,475 72,164
1955 516 78.7% 23,164 56,678 77,938
1954 89 77.5% 37,971 60,356 86,903
1935 51 94.1% 3,279 19,560 42,287
1934 87 97.7% 5,890 16,762 25,154

How Long Does a MG Magnette Last?

Based on 613 MG Magnette vehicles on UK roads.

Average
55.7 years
Median
56.0 years
Estimated max lifespan
92 years

MG Magnette Mileage Distribution

Total mileage recorded across all MG Magnette MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.

Median
51,082 mi
75th Percentile
74,250 mi
95th Percentile
93,921 mi
Max Recorded
345,331 mi

Best Year to Buy a Used MG Magnette

Based on MOT pass rates across all registration years with sufficient test data.

Best year
1934

97.7% MOT pass rate from 87 tests

Year to avoid
1954

77.5% MOT pass rate from 89 tests

The best year to buy a used MG Magnette is 1934, which has the highest MOT pass rate at 97.7% across 87 tests. The 1954 model year has the lowest pass rate at 77.5% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.

How Does the MG Magnette Compare?

MOT pass rates compared to similar models. Click any model for the full breakdown.

Model Pass Rate Tests Typical Mileage Lifespan
MG Magnette THIS CAR 83.0% 4,082 51,082 mi 92 yrs
MG Zr 69.8% 651,705 57,257 mi 25 yrs
MG Mgf 66.7% 546,238 62,469 mi 31 yrs
MG Tf 72.8% 475,348 45,249 mi 24 yrs
Kawasaki Zx 1000 Gcf 92% 2,499 13,135 mi 14 yrs

Compared to the MG Zr (69.8% pass rate) and the MG Mgf (66.7% pass rate), the MG Magnette outperforms both on MOT reliability.

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Should you buy a used MG Magnette?

The MG Magnette has an overall MOT pass rate of 83.0% across 4,082 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.

The most common problems on the MG Magnette are brakes imbalanced across an axle (151 recorded failures), windscreen washer provides insufficient washer liquid (118), and parking brake: efficiency below requirements (94). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.

A typical MG Magnette owner drives around 415 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.

In terms of longevity, most MG Magnette models stay on UK roads for around 92 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.

Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.

MG Magnette — Frequently Asked Questions

Is the MG Magnette reliable?
Based on 4,082 MOT tests, the MG Magnette has a 83.0% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a MG Magnette?
The most common MOT failures are brakes imbalanced across an axle, windscreen washer provides insufficient washer liquid, and parking brake: efficiency below requirements. Check these on any test drive.
How many miles does a MG Magnette do per year?
The typical MG Magnette does around 415 miles per year. Anything significantly above or below this is worth investigating.
How long does a MG Magnette last?
Most MG Magnette models stay on UK roads for around 92 years based on our analysis of 613 vehicles.
Should I get a vehicle check before buying a MG Magnette?
Yes. An MOT pass rate tells you about the model in general, but a vehicle history check reveals the specific car's finance, stolen, write-off and mileage history — things the seller may not disclose.
What is the best year to buy a MG Magnette?
Based on MOT pass rates, the best year to buy a used MG Magnette is 1934 with a 97.7% pass rate across 87 tests.