MG MG4 MOT failure rates: what fails, what to fix

TL;DR

The MG MG4 has variable MOT failure rates, with common issues including brakes, suspension, lighting, and emissions. Older models tend to fail more often, highlighting the need for regular maintenance. Quick fixes are often inexpensive, while structural repairs can be costly, ranging from £20 to over £300.

Common MOT Failure Categories

The MG MG4 often faces failures in specific categories. Brakes are a frequent issue, particularly with wear and tear on pads and discs. Suspension problems, such as worn bushings or shock absorbers, also contribute significantly to failure rates. Lighting failures, often due to blown bulbs, are common but relatively easy to fix. Emissions failures can occur due to issues with the exhaust system or engine management.

Age-by-Age Fail Rate Trajectory

As the MG MG4 ages, its MOT fail rate tends to increase. Newer models (up to three years old) show a low fail rate, often below 10%. However, as vehicles reach five to seven years, the fail rate can rise to over 20%. This trend highlights the importance of regular maintenance and checks as the vehicle ages.

Quick Fixes vs Structural Issues

Many MOT failures can be resolved with quick fixes. Replacing bulbs or adjusting brakes can often be done for minimal cost. However, structural issues, such as those affecting the suspension or chassis, can be more complex and expensive to repair. Owners should be aware of these potential pitfalls when considering the MG MG4.

Cost Ranges for Typical Failures

Repair costs for common MOT failures vary. Simple fixes like bulb replacements can cost around £20. More significant repairs, such as brake pad replacements, can range from £150 to £300. Suspension repairs may also fall within this range but can exceed £300 depending on the severity of the issue. Being prepared for these costs can help owners maintain their vehicles effectively.

What people are asking

Is the MG MG4 a good car?

The MG MG4 is generally regarded as a good car, particularly for those seeking an affordable electric vehicle. Owners appreciate its value for money, decent range, and modern features, making it a popular choice among budget-conscious buyers.

Why is the MG4 so cheap?

The MG4 is priced competitively due to its positioning as an affordable electric vehicle. The brand aims to attract a wide audience by offering a lower entry price point compared to many other electric vehicles, which can be attributed to cost-effective manufacturing and sourcing strategies.

What are the main issues with MG cars?

Common issues reported with MG cars include electrical problems, such as infotainment glitches, and some concerns regarding build quality. Owners have noted that while many MG models are reliable, certain aspects may require more attention than others, particularly in earlier models.

Is it worth buying a used MG4?

Buying a used MG4 can be worthwhile, especially if it has been well-maintained and is priced competitively. However, potential buyers should be aware of common issues and ensure they check the vehicle’s history and condition before making a purchase.

What owners say

Owners on r/MGelectric have shared their experiences regarding the reliability of the MG MG4. Many report that while the car is generally reliable, there have been some concerns about non-motor electrical issues. For instance, some users noted problems with the infotainment system, which can occasionally freeze or malfunction.

In discussions on r/ElectricVehiclesUK, buyers have mentioned that the MG4 offers good value for those transitioning to electric vehicles, particularly for individuals without home charging options. However, they emphasised the importance of understanding the vehicle’s range and charging capabilities, especially for those who drive longer distances regularly.

On r/EuroEV, owners have pointed out that while the MG4 is a budget-friendly option, the build quality may not match that of more expensive electric vehicles. Some have reported issues with bodywork and non-motor electrical components, which could impact long-term satisfaction.

Additionally, users on r/MGelectric have discussed the importance of keeping up with regular maintenance to avoid potential pitfalls. They recommend checking for common faults, particularly in older models, to ensure a smooth ownership experience.

Finally, buyers in UK communities have flagged that while the MG4 is a solid choice for a budget electric vehicle, it is essential to be aware of the potential for minor issues, particularly with the early models. This includes concerns over underbody protection and the overall longevity of certain components.