How much does a 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A cost to run?

Estimated annual running cost is £1,695 (£141/month), including £1245 fuel, £195 road tax, £55 MOT, and £200 predicted repairs.

What is the MOT pass rate for a 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A?

The 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A has a 91% MOT pass rate based on 511 tests in 2026. This ranks 2271 out of 3373 cars from 2021.

Which year AUDI Q7 S LINE 45 TDI MHEV QUAT A is most reliable?

The 2022 AUDI Q7 S LINE 45 TDI MHEV QUAT A has the highest MOT pass rate at 98%. The least reliable year is 2021 at 91%.

What is the average mileage for a 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A?

The average mileage for a 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A is 33,446 miles, which is in line with the expected 37,000 miles for a 5-year-old car, suggesting normal everyday use.

AUDI Q7 S LINE 45 TDI MHEV QUAT A (2021)

Q: Is the 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A reliable?

Excellent reliability. Very few MOT failures. 91% of AUDI Q7 S LINE 45 TDI MHEV QUAT As from 2021 passed their MOT first time in 2026, based on 511 tests. That's 9 points above the national average of 82%.

Running costs, reliability data, and common problems from 511 real MOT tests.

Annual Cost

£1,695

£141/month

MOT Pass Rate

91%

Excellent

Road Tax

£195

Flat rate/year

Insurance

Grp 30-42

2967cc Diesel

Great Choice

91% pass rate, £1695/year to run. 9 points above average.

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Diesel2967cc5 years old511 tests33k miles avg

Annual Running Costs

Fuel (Diesel, 2967cc)

~40 mpg

£1,245

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,695

Per month£141/mo

Per week£33/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

91% MOT pass rate(Excellent)

0%National avg: 82%100%

Excellent reliability. Very few MOT failures. That's 9 points above the national average of 82%.

At 5 years old, 91% of AUDI Q7 S LINE 45 TDI MHEV QUAT As from 2021 passed their MOT first time in 2026. That's based on 511 tests across the UK. The average mileage at this age is 33,446 miles.

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How Does It Compare?

Rank among 2021 cars2271th of 3,373(top 67%)

Rank among AUDI models617th of 1,079(top 57%)

vs national average+9%(82% avg)

vs 2021 cars average-1%(92% avg)

vs AUDI average+1%(90% avg)

Mileage Analysis

33,446

Average miles

37,000

Expected for age

The average 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A has 33,446 miles on the clock, which is in line with the expected 37,000 miles for a 5-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2022 model with a 98% MOT pass rate, while the 2021 model has the lowest at 91%. Consider a different year if reliability is a priority.

AUDI Q7 S LINE 45 TDI MHEV QUAT A by Year

Year	Pass Rate	Tests	Avg Mileage
2022	98%	80	25,728 mi
2021	91%	511	33,446 mi
2020	92%	703	38,332 mi
2019	95%	66	46,512 mi

Similar Cars to Consider

MERCEDES E

2019 · 2925cc Diesel

£1,690/year

90%

-1%

FORD RANGER

2019 · 3198cc Diesel

£1,840/year

87%

-4%

AUDI Q5

2019 · 2967cc Diesel

£1,690/year

93%

+2%

AUDI A5

2019 · 2967cc Diesel

£1,690/year

90%

-1%

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About the 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A

The 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A is a premium performance with a 2967cc diesel engine. 511 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. Among all cars from 2021, the average MOT pass rate is 92%, and this model falls short of that benchmark.

With an average of 33,446 miles at 5 years old, AUDI Q7 S LINE 45 TDI MHEV QUAT A owners drive about as much as the UK average.

2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A Fuel Costs

The 2967cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A?

Total estimated annual running cost is £1,695 (£141/month), broken down as £1245 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 91% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

AUDI Q7 S LINE 45 TDI MHEV QUAT A Reliability Trend

The AUDI Q7 S LINE 45 TDI MHEV QUAT A has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.

Buying a Used 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A

At 5 years old, the AUDI Q7 S LINE 45 TDI MHEV QUAT A 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

Based on the 2021 AUDI Q7 S LINE 45 TDI MHEV QUAT A's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Medium risk

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Low risk

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Medium risk

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

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 AUDI Q7 S LINE 45 TDI MHEV QUAT A stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
AUDI Q7 S LINE 45 TDI MHEV QUAT A(2021)	91%	£1245	£195	Grp 30-42	£1695
MERCEDES E(2019)	90%	£1245	£190	Grp 30-42	£1690-£5
FORD RANGER(2019)	87%	£1245	£190	Grp 35-50	£1840+£145
AUDI Q5(2019)	93%	£1245	£190	Grp 30-42	£1690-£5
AUDI A5(2019)	90%	£1245	£190	Grp 30-42	£1690-£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.