MG Zr+ Reliability, MOT Pass Rate & Common Faults
Free MG Zr+ car check
Is the MG Zr+ reliable? We analysed 2,257 real MOT tests across 534 vehicles to find out.
Got a specific MG Zr+? Enter the reg for a free check:
The MG Zr+ is about average for reliability based on real UK MOT data. Common problems include tyre tread depth below requirements of 1.6mm, windscreen wiper does not clear the windscreen effectively and exhaust has a major leak of exhaust gases. Here's everything you need to know before buying a used MG Zr+.
MG Zr+ Number Plates
Number plates registered to a MG Zr+. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
MG Zr+ MOT Pass Rate by Year
How likely is a MG Zr+ to pass its MOT? Here's the pass rate for each registration year, newest first.
MG Zr+ Problems — What Goes Wrong?
The most common reasons a MG Zr+ fails its MOT, ranked by how often they occur. Check for these problems before you buy.
MG Zr+ Mileage — What's Normal?
How many miles does a typical MG Zr+ owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
MG Zr+ MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the MG Zr+ year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2004 | 237 | 70.5% | 28,992 | 39,309 | 55,523 |
| 2003 | 716 | 73.9% | 30,720 | 40,110 | 52,778 |
| 2002 | 1,025 | 74.2% | 34,873 | 46,187 | 58,366 |
| 2001 | 251 | 74.5% | 40,990 | 54,026 | 67,888 |
How Long Does a MG Zr+ Last?
Based on 534 MG Zr+ vehicles on UK roads.
MG Zr+ Mileage Distribution
Total mileage recorded across all MG Zr+ MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used MG Zr+
Based on MOT pass rates across all registration years with sufficient test data.
74.5% MOT pass rate from 251 tests
70.5% MOT pass rate from 237 tests
The best year to buy a used MG Zr+ is 2001, which has the highest MOT pass rate at 74.5% across 251 tests. The 2004 model year has the lowest pass rate at 70.5% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the MG Zr+ Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| MG Zr+ THIS CAR | 73.7% | 2,257 | 44,689 mi | 25 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 |
| Harley Davidson Flhx | 91.8% | 1,148 | 17,792 mi | 14 yrs |
Compared to the MG Zr (69.8% pass rate) and the MG Mgf (66.7% pass rate), the MG Zr+ outperforms both on MOT reliability.
Found a MG Zr+ you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific MG Zr+Should you buy a used MG Zr+?
The MG Zr+ has an overall MOT pass rate of 73.7% across 2,257 real MOT tests — roughly in line with the UK average.
The most common problems on the MG Zr+ are tyre tread depth below requirements of 1.6mm (100 recorded failures), windscreen wiper does not clear the windscreen effectively (78), and exhaust has a major leak of exhaust gases (59). 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 Zr+ owner drives around 8,406 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 Zr+ models stay on UK roads for around 25 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.