CarCostCheck

BMW 730D MHEV AUTO (2021)

Running costs, common problems, and reliability data based on 41 real MOT tests in 2024.

MOT Pass Rate

90%

Total Tests (2024)

41

Avg Mileage

23,264 mi

Est. Annual Cost

£2,037

Is the 2021 BMW 730D MHEV AUTO reliable?

Excellent reliability. Very few MOT failures. That's 8 points above the national average of 82%.

At 3 years old, 90% of BMW 730D MHEV AUTOs from 2021 passed their MOT first time in 2024. That's based on 41 tests across the UK. The average mileage at this age is 23,264 miles.

How does the 2021 BMW 730D MHEV AUTO compare?

Rank among all 2021 cars2637th out of 3,373(top 78%)
Rank among all BMW models770th out of 1,564(top 49%)
vs national average+8% (82% avg)
vs 2021 cars average-2% (92% avg)
vs BMW average+2% (88% avg)

Mileage Analysis

The average 2021 BMW 730D MHEV AUTO has 23,264 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

How much does a 2021 BMW 730D MHEV AUTO cost to run?

Fuel (Petrol, 2993cc)
£1,592
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£2,037
Per month£170/mo

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

Checking a specific BMW 730D MHEV AUTO?

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About the 2021 BMW 730D MHEV AUTO

The 2021 BMW 730D MHEV AUTO is a premium performance with a 2993cc petrol engine. 41 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 78% of 2021 cars for MOT pass rates.

With an average of 23,264 miles at 3 years old, BMW 730D MHEV AUTO owners drive about as much as the UK average.

2021 BMW 730D MHEV AUTO Fuel Costs

The 2993cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 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 BMW 730D MHEV AUTO?

Total estimated annual running cost is £2,037 170/month), broken down as £1592 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 90% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2021 BMW 730D MHEV AUTO

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. Note: with only 41 tests in our data, these figures should be treated as indicative rather than definitive.

Alternatives to the 2021 BMW 730D MHEV AUTO

If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines: