MG ZS (2021)
Running costs, common problems, and reliability data based on 145 real MOT tests in 2024.
MOT Pass Rate
83%
Total Tests (2024)
145
Avg Mileage
24,982 mi
Est. Annual Cost
£1,550
Is the 2021 MG ZS reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 3 years old, 83% of MG ZSs from 2021 passed their MOT first time in 2024. That's based on 145 tests across the UK. The average mileage at this age is 24,982 miles.
How does the 2021 MG ZS compare?
Mileage Analysis
The average 2021 MG ZS has 24,982 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.
Best year to buy a MG ZS?
The most reliable year is the 2020 model with a 87% MOT pass rate, while the 2001 model has the lowest at 70%. The 2021 sits between the two at 83%.
How much does a 2021 MG ZS cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
MG ZS by Year
Checking a specific MG ZS?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 MG ZS
The 2021 MG ZS is a city car with a 999cc petrol engine. 145 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 95% of 2021 cars for MOT pass rates.
With an average of 24,982 miles at 3 years old, MG ZS owners drive about as much as the UK average.
2021 MG ZS Fuel Costs
The modest 999cc petrol engine keeps fuel costs low, which is a real advantage for a city car. Expect around 50 mpg in mixed driving, which works out to roughly £955 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2021 MG ZS?
Total estimated annual running cost is £1,550 (£129/month), broken down as £955 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 83% pass rate. Keeping on top of servicing will help avoid surprises.
MG ZS Reliability Trend
Newer MG ZSs show better MOT pass rates than older ones, with an average improvement of 10 percentage points.
Buying a Used 2021 MG ZS
At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet. If you're flexible on year, the 2020 model has the highest pass rate at 87%.
Alternatives to the 2021 MG ZS
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- FORD FIESTA (2019) 91% pass rate (+8%) from 124,950 tests
- VOLKSWAGEN GOLF (2019) 92% pass rate (+9%) from 89,653 tests
- VAUXHALL CORSA (2019) 88% pass rate (+5%) from 68,639 tests
- MINI COOPER (2019) 92% pass rate (+9%) from 52,140 tests