MG Zt+ Cdti 135 Reliability, MOT Pass Rate & Common Faults
Free MG Zt+ Cdti 135 car check
Is the MG Zt+ Cdti 135 reliable? We analysed 1,117 real MOT tests across 127 vehicles to find out.
Got a specific MG Zt+ Cdti 135? Enter the reg for a free check:
The MG Zt+ Cdti 135 is about average for reliability based on real UK MOT data. Common problems include tyre tread depth below requirements of 1.6mm, registration plate lamp not working and brake pipe excessively corroded. Here's everything you need to know before buying a used MG Zt+ Cdti 135.
MG Zt+ Cdti 135 Number Plates
Number plates registered to a MG Zt+ Cdti 135. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
MG Zt+ Cdti 135 MOT Pass Rate by Year
How likely is a MG Zt+ Cdti 135 to pass its MOT? Here's the pass rate for each registration year, newest first.
MG Zt+ Cdti 135 Problems — What Goes Wrong?
The most common reasons a MG Zt+ Cdti 135 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
MG Zt+ Cdti 135 Mileage — What's Normal?
How many miles does a typical MG Zt+ Cdti 135 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
MG Zt+ Cdti 135 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the MG Zt+ Cdti 135 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2005 | 311 | 73.0% | 60,274 | 81,432 | 112,412 |
| 2004 | 600 | 69.8% | 67,801 | 94,420 | 123,492 |
MG Zt+ Cdti 135 Mileage Distribution
Total mileage recorded across all MG Zt+ Cdti 135 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 Zt+ Cdti 135
Based on MOT pass rates across all registration years with sufficient test data.
73.0% MOT pass rate from 311 tests
69.8% MOT pass rate from 600 tests
The best year to buy a used MG Zt+ Cdti 135 is 2005, which has the highest MOT pass rate at 73.0% across 311 tests. The 2004 model year has the lowest pass rate at 69.8% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the MG Zt+ Cdti 135 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| MG Zt+ Cdti 135 THIS CAR | 70.2% | 1,117 | 96,618 mi | 22 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 |
| Ferrari Roma S-a | 94.7% | 1,015 | 8,184 mi | — yrs |
Compared to the MG Zr (69.8% pass rate) and the MG Mgf (66.7% pass rate), the MG Zt+ Cdti 135 outperforms both on MOT reliability.
Found a MG Zt+ Cdti 135 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 Zt+ Cdti 135Should you buy a used MG Zt+ Cdti 135?
The MG Zt+ Cdti 135 has an overall MOT pass rate of 70.2% across 1,117 real MOT tests — roughly in line with the UK average.
The most common problems on the MG Zt+ Cdti 135 are tyre tread depth below requirements of 1.6mm (41 recorded failures), registration plate lamp not working (37), and brake pipe excessively corroded (34). 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 Zt+ Cdti 135 owner drives around 7,202 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 Zt+ Cdti 135 models stay on UK roads for around 22 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.