How much does a 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M cost to run?

Estimated annual running cost is £1,100 (£92/month), including £500 fuel, £195 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M?

The 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M has a 87% MOT pass rate based on 3,213 tests in 2026. This ranks 2809 out of 3373 cars from 2021.

Which year MERCEDES EQC 400 AMG LINE PREMIUM + 4M is most reliable?

The 2022 MERCEDES EQC 400 AMG LINE PREMIUM + 4M has the highest MOT pass rate at 88%. The least reliable year is 2020 at 87%.

MERCEDES EQC 400 AMG LINE PREMIUM + 4M (2021)

Q: Is the 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M reliable?

Good reliability. Occasional issues but generally solid. 87% of MERCEDES EQC 400 AMG LINE PREMIUM + 4Ms from 2021 passed their MOT first time in 2026, based on 3,213 tests. That's 5 points above the national average of 82%.

Q: What is the average mileage for a 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M?

The average mileage for a 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M is 29,557 miles, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 3,213 real MOT tests.

Annual Cost

£1,100

£92/month

MOT Pass Rate

87%

Good

Road Tax

£195

Flat rate/year

Insurance

Grp 1-8

0cc Electric

Solid Option

87% pass rate, £1100/year to run. 5 points above average.

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Electric0cc5 years old3,213 tests30k miles avg

Annual Running Costs

Fuel (Electric, 0cc)

£500

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

£350

Total per year£1,100

Per month£92/mo

Per week£21/wk

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.

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Reliability Verdict

87% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.

At 5 years old, 87% of MERCEDES EQC 400 AMG LINE PREMIUM + 4Ms from 2021 passed their MOT first time in 2026. That's based on 3,213 tests across the UK. The average mileage at this age is 29,557 miles.

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How Does It Compare?

Rank among 2021 cars2809th of 3,373(top 83%)

Rank among MERCEDES models752th of 1,408(top 53%)

vs national average+5%(82% avg)

vs 2021 cars average-5%(92% avg)

vs MERCEDES average+0%(87% avg)

Mileage Analysis

29,557

Average miles

37,000

Expected for age

The average 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M has 29,557 miles on the clock, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

The most reliable year is the 2022 model with a 88% MOT pass rate, while the 2020 model has the lowest at 87%. The 2021 sits between the two at 87%.

MERCEDES EQC 400 AMG LINE PREMIUM + 4M by Year

Year	Pass Rate	Tests	Avg Mileage
2022	88%	292	25,498 mi
2021	87%	3,213	29,557 mi
2020	87%	1,668	33,349 mi
2019	88%	34	26,935 mi

Similar Cars to Consider

TESLA MODEL 3 LONG RANGE AWD

2021 · 0cc Electric

£1,095/year

88%

+1%

JAGUAR I-PACE

2020 · 0cc Electric

£945/year

96%

+9%

TESLA MODEL 3 STANDARD RANGE +

2021 · 0cc Electric

£1,095/year

88%

+1%

TESLA MODEL 3 PERFORMANCE AWD

2020 · 0cc Electric

£1,095/year

87%

same

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About the 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M

The 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M is a electric with a 0cc electric engine. 3,213 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. It sits in the bottom 83% of 2021 cars for MOT pass rates.

With an average of 29,557 miles at 5 years old, MERCEDES EQC 400 AMG LINE PREMIUM + 4M owners tend to use this car less than the typical driver.

What does it cost to own a 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M?

Total estimated annual running cost is £1,100 (£92/month), broken down as £500 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 87% pass rate. Keeping on top of servicing will help avoid surprises.

MERCEDES EQC 400 AMG LINE PREMIUM + 4M Reliability Trend

The MERCEDES EQC 400 AMG LINE PREMIUM + 4M has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.

Buying a Used 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M

At 5 years old, the MERCEDES EQC 400 AMG LINE PREMIUM + 4M offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2022 model has the highest pass rate at 88%.

Common Issues to Watch For

Based on the 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M's fuel type, age, and engine size, these are the most likely problem areas to check.

Battery Degradation

Medium risk

After 5 years, expect some battery capacity loss. Check the battery health report for state of health (SoH). Below 80% significantly reduces range.

Charging Port

Medium risk

Charging connectors and ports can develop issues from regular use. Check both AC and DC charging work correctly before purchasing.

Software Updates

Medium risk

Older EVs may miss out on manufacturer software updates that improve range and features. Check the infotainment system is up to date.

12V Auxiliary Battery

Medium risk

EVs still have a standard 12V battery for accessories. These drain faster than in petrol cars and can leave you stranded if flat. Replacement is £100-£200.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2021 MERCEDES EQC 400 AMG LINE PREMIUM + 4M stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
MERCEDES EQC 400 AMG LINE PREMIUM + 4M(2021)	87%	£500	£195	Grp 1-8	£1100
TESLA MODEL 3 LONG RANGE AWD(2021)	88%	£500	£190	Grp 1-8	£1095-£5
JAGUAR I-PACE(2020)	96%	£500	£190	Grp 1-8	£945-£155
TESLA MODEL 3 STANDARD RANGE +(2021)	88%	£500	£190	Grp 1-8	£1095-£5
TESLA MODEL 3 PERFORMANCE AWD(2020)	87%	£500	£190	Grp 1-8	£1095-£5

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.