Mercedes EQC 400 AMG Line Premium + 4M (2021)

Estimated running costs and MOT pass rates from 3,213 MOT tests in 2024.

Annual Cost

£1,160

£97/month

MOT Pass Rate

87%

Good

Road Tax

£200

Standard rate/year

Est. Insurance

n/a

Electric

Solid Option

87% pass rate, £1,160/year to run. 5 points above average.

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Electric5 years old3,213 tests30k miles avg

Annual Running Costs

Electricity

Home charging at about 7.5p a mile

£555

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

£350

Total per year£1,160

Per month£97/mo

Per week£22/wk

Estimates based on 7,400 miles/year (UK average), home charging at about 7.5p a mile, GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).

Reliability Verdict

87% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the average of 82% across all models in our data.

87% of MOT tests on Mercedes EQC 400 AMG Line Premium + 4Ms from 2021 ended in a pass in 2024, when they were about 3 years old. That's based on 3,213 tests across the UK, retests included. The average mileage recorded at those tests was 29,557 miles.

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How Does It Compare?

Rank among 2021 models2776th of 3,336(bottom 17%)

Rank among Mercedes models741st of 1,376(bottom half)

vs average of all models+5%(82% avg)

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

vs Mercedes average+0%(87% avg)

Mileage Analysis

29,557

Average miles

22,200

Expected for age

The average 2021 Mercedes EQC 400 AMG Line Premium + 4M had 29,557 miles on the clock at its 2024 MOT, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.

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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 · Electric

£1,160/year

88%

+1%

Jaguar I-Pace

2020 · Electric

£1,010/year

96%

+9%

Tesla Model 3 Standard Range +

2021 · Electric

£1,160/year

88%

+1%

Nissan Leaf

2021 · Electric

£1,010/year

94%

+7%

Check a Specific Mercedes EQC 400 AMG Line Premium + 4M

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About the 2021 Mercedes EQC 400 AMG Line Premium + 4M

The 2021 Mercedes EQC 400 AMG Line Premium + 4M is an electric car. Our records list it as electric. 3,213 MOT tests were recorded on this model in 2024, making it a reasonably common sight on UK roads. It sits in the bottom 17% of 2021 models for MOT pass rate.

With an average of 29,557 miles recorded at its 2024 MOT tests, Mercedes EQC 400 AMG Line Premium + 4M owners cover more miles than the average driver.

What does it cost to own a 2021 Mercedes EQC 400 AMG Line Premium + 4M?

Total estimated annual running cost is £1,160 (£97/month), broken down as £555 electricity, £200 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.

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.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

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 estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Mercedes EQC 400 AMG Line Premium + 4M(2021)	87%	£555	£200	n/a	£1,160
Tesla Model 3 Long Range Awd(2021)	88%	£555	£200	n/a	£1,160same
Jaguar I-Pace(2020)	96%	£555	£200	n/a	£1,010-£150
Tesla Model 3 Standard Range +(2021)	88%	£555	£200	n/a	£1,160same
Nissan Leaf(2021)	94%	£555	£200	n/a	£1,010-£150

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2021 Mercedes EQC 400 AMG Line Premium + 4M

Is the 2021 Mercedes EQC 400 AMG Line Premium + 4M reliable?

Good reliability. Occasional issues but generally solid. 87% of MOT tests on 2021 Mercedes EQC 400 AMG Line Premium + 4Ms ended in a pass, from 3,213 tests (DVSA MOT data for tests in 2024, retests included). That's 5 points above the average of 82% across all models in the same data.

How much does a 2021 Mercedes EQC 400 AMG Line Premium + 4M cost to run?

Our estimate is £1,160 a year (£97 a month): £555 electricity, £200 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2021 Mercedes EQC 400 AMG Line Premium + 4M?

87% of 3,213 MOT tests on the 2021 Mercedes EQC 400 AMG Line Premium + 4M ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2776th of 3,336 models first registered in 2021 (bottom 17%).

What is the average mileage for a 2021 Mercedes EQC 400 AMG Line Premium + 4M?

The average mileage recorded at MOT tests on the 2021 Mercedes EQC 400 AMG Line Premium + 4M is 29,557 miles, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.