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Audi Q4 e-tron (2021-2023) vs Mercedes-Benz EQB
Selected trim35 e-tron · 2021-23Change trim221 mi · 55 kWh · £40,750
Selected trim300 4MATIC · 2022-25Change trim257 mi · 69.7 kWh · £52,145
At a glance
The Mercedes-Benz EQB was replaced by the Mercedes-Benz GLB in 2026. Compare the Audi Q4 e-tron with the Mercedes-Benz GLB
In this comparison, Audi Q4 e-tron leads on value for money, running costs and city driving, while the Mercedes-Benz EQB stays competitive across the board.
Which should you choose?
Choose the Audi Q4 e-tron (2021-2023) if...
- you want the most for your money - best overall spec per pound
- you want the lowest running costs - from just 2.1p per mile on off-peak electricity
- you drive in the city - it's compact with an excellent turning circle
How we reached the recommendation
Verdict
Our take
The Audi Q4 e-tron leads in the most categories, but each car here has its strengths.
ValueAudi
Audi
5.1
Mercedes-Benz
4.3
Motorway Range
Audi
3.7
Mercedes-Benz
3.7
Too close to call
Family
Audi
7.7
Mercedes-Benz
7.8
Too close to call
Cost Per MileAudi
Audi
4.8
Mercedes-Benz
3
City DrivingAudi
Audi
6
Mercedes-Benz
3.9
What each car does better
See the specification differences behind the verdict, with supporting figures for each advantage.
Mercedes-Benz EQB
300 4MATIC
- 37 miles more WLTP range
- 43 kW more power
- 1.0s quicker 0-62 mph
- 2 more seats
Key specifications
Compare the key specifications for your selected trims.
| Measure | Audi Q4 e-tron35 e-tron | Mercedes-Benz EQB300 4MATIC |
|---|---|---|
| Price | £40,750 (better) | £52,145 |
| Official range | 221 miles | 257 miles (better) |
| Boot space | 520 L (better) | 495 L |
| 10-80% rapid charge | Not available | 32 min |
| 0-62 mph | 9 sec | 8 sec (better) |
Size Comparison
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Audi Q4 e-tron
Mercedes-Benz EQB
Length
Audi Q4 e-tron4,588mm-96mm
Mercedes-Benz EQB4,684mm
Width
Audi Q4 e-tron1,865mm
Mercedes-Benz EQB1,834mm-31mm
Height
Audi Q4 e-tron1,632mm-35mm
Mercedes-Benz EQB1,667mm
Space, size & parking
Parking & manoeuvring
Compare exterior dimensions to assess how each car fits UK parking spaces.
| Measure | Audi Q4 e-tron35 e-tron | Mercedes-Benz EQB300 4MATIC |
|---|---|---|
| Length | 4,588 mm | 4,684 mm |
| Width (mirrors folded) | 1,865 mm | 1,834 mm (better) |
| Width with mirrors out | 2,108 mm | 2,020 mm (better) |
| Height | 1,632 mm | 1,667 mm |
| Turning circle | 10.2 m (better) | 11.7 m |
| Clearance in a standard bayA standard UK parking bay is 2,400 mm wide. | 535 mm spare | 566 mm spare (better) |
People & luggage
Compare seating, child-seat mounting points, boot space and towing capacity.
| Measure | Audi Q4 e-tron35 e-tron | Mercedes-Benz EQB300 4MATIC |
|---|---|---|
| Seats | 5 | 7 (better) |
| ISOFIX child-seat points | Not available | 4 |
| Boot space (seats up) | 520 L (better) | 495 L |
| Boot space (seats down) | 1490 L (better) | 1410 L |
| Towing capacity (braked) | Not available | 1,700 kg |
Full specifications
| Specification |  Audi Q4 e-tron 35 e-tron |  Mercedes-Benz EQB 300 4MATIC |
|---|---|---|
| Dimensions | ||
| Length | 4.59m | 4.68m+96mm |
| Width | 1.86m | 1.83m-31mm |
| Width (mirrors) | 2.11m | 2.02m-88mm |
| Height | 1.63m | 1.67m+35mm |
| Wheelbase | 2.76m | 2.83m+65mm |
| Ground Clearance | Not available | 170mm |
| Capacity | ||
| Boot (seats up) | 520L (better) | 495L |
| Boot (seats down) | 1490L (better) | 1410L |
| Seats | 5 | 7 (better) |
| Practicality | ||
| Turning Circle | 10.2m (better) | 11.7m |
| Kerb Weight | Not available | 2,105kg |
| Towing Capacity | Not available | 1,700kg |
| Electric | ||
| Battery | 55kWh | 69.7kWh (better) |
| Range (WLTP) | 221 mi | 257 mi (better) |
| Max DC Charge | 100kW | 100kW |
| Pricing | ||
| UK MSRP | £40,750 (better) | £52,145 |
| Details | ||
| Body Style | SUV | SUV |
| Available | 2021–2023 | 2022–2025 |
Range & charging
Range, charging & battery
Check official and estimated driving range alongside charging speeds, efficiency and battery technology.
| Measure | Audi Q4 e-tron35 e-tron | Mercedes-Benz EQB300 4MATIC |
|---|---|---|
| Official range (WLTP) | 221 miles | 257 miles (better) |
| Estimated motorway rangeEVcarsguide estimate at sustained motorway speed. | 184 miles | 214 miles (better) |
| 10-80% rapid charge time | Not available | 32 min |
| Max rapid charge rate | 100 kW | 100 kW |
| Home AC charging | 7.2 kW | 11 kW (better) |
| Usable battery capacity | 52 kWh | 66.5 kWh (better) |
| Battery chemistry | NMC | NMC |
| Battery architecture | 400V | 400V |
| Heat pump | Not available | Standard |
Driving & everyday use
Performance & drivetrain
Compare acceleration, power and drivetrain specifications for the selected trims.
| Measure | Audi Q4 e-tron35 e-tron | Mercedes-Benz EQB300 4MATIC |
|---|---|---|
| 0-62 mph | 9 sec | 8 sec (better) |
| Power | 125 kW | 168 kW (better) |
| Torque | Not available | 390 Nm |
| Drivetrain | RWD | AWD |
What the critics say
See how UK motoring publications rate each car in their road tests. One car has more review coverage than the other - we show that rather than guessing.
Audi Q4 e-tron
35 e-tron
No critic reviews gathered yet for this car.
Mercedes-Benz EQB
300 4MATIC
Reviews and videos discuss each model overall; the specifications above apply to your selected trims.
Prices & deals
New and used prices
Current pricing and recent used-market behaviour.
| Measure | Audi Q4 e-tron35 e-tron | Mercedes-Benz EQB300 4MATIC |
|---|---|---|
| Used market price from | £19,560 | £25,048 |
| Average used price | £22,100 | £27,272 |
| Active used listings trackedIndependent UK dealer listings seen in the last 90 days. | 8 listings | 12 listings (better) |
| Recent used-price trend | Broadly flat | Up 21.8% over ~6 months |
Used prices are indicative figures gathered from independent UK dealer listings and change frequently.
Calculate your real costs
For a useful running-cost comparison, factor in your mileage, charging access and current petrol or diesel car alongside the EV estimate.
Compare with petrol or diesel
Compare purchase price, energy, road tax and maintenance with a petrol or diesel alternative.
Calculate company-car tax
Work out monthly Benefit-in-Kind using current and future HMRC rates.
Cost per mile
Compare EV charging costs per mile with petrol and diesel using your charging options.
Check a lease quote
Assess the effective monthly cost alongside the list price and expected depreciation.
Safety & ownership confidence
Euro NCAP - Audi Q4 e-tron 35 e-tron
Tested 2021
Adult Occupant93%
Child Occupant89%
Vulnerable Road Users66%
Safety Assist80%
Full result on euroncap.com (opens in new tab)
Euro NCAP - Mercedes-Benz EQB 300 4MATIC
Tested 2019
Adult Occupant95%
Child Occupant91%
Vulnerable Road Users78%
Safety Assist74%
Warranty
Check the published battery warranty cover for each selected trim.
| Measure | Audi Q4 e-tron35 e-tron | Mercedes-Benz EQB300 4MATIC |
|---|---|---|
| Battery warranty | 8 years | 8 years |
| Battery warranty distance | 160,934 km (better) | 160,000 km |
Buying options
Get a quote
Audi Q4 e-tron
Used on AutoTraderLease deals
Mercedes-Benz EQB
Used on AutoTraderLease deals
Live used listings
Active inventory from independent UK dealers.
Audi Q4 e-tron
- £18,3932023Car360View
- £19,0412023Car360View
Mercedes-Benz EQB
- £29,5992024Car360View
- £24,9102023Car360View
- £24,0992023Car360View
Frequently asked questions
Is the Mercedes-Benz EQB worth the extra £11,395 over the Audi Q4 e-tron?
The Mercedes-Benz EQB costs £11,395 more than the Audi Q4 e-tron. For that premium it adds 37 miles more WLTP range, 43 kW more power and a 1.0s quicker 0-62mph time. On EVcarsguide's combined category scores, the Audi Q4 e-tron comes out ahead overall.
Which is cheaper to own over 5 years, the Audi Q4 e-tron or the Mercedes-Benz EQB?
The Audi Q4 e-tron is £11,395 cheaper to buy. Running costs are almost identical - about £168 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Audi Q4 e-tron comes out roughly £11,475 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.
What are the Audi Q4 e-tron and Mercedes-Benz EQB like on a long motorway trip?
EVcarsguide estimates a real-world motorway range of about 184 miles for the Audi Q4 e-tron and 214 miles for the Mercedes-Benz EQB - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Mercedes-Benz EQB goes roughly 30 miles further between charging stops.
Which is easier to park and drive in town, the Audi Q4 e-tron or the Mercedes-Benz EQB?
The Mercedes-Benz EQB is the easier car for tight UK car parks: it is 31 mm narrower than the Audi Q4 e-tron. In a standard 2,400 mm bay that leaves about 566 mm of total clearance for the Mercedes-Benz EQB and about 535 mm of total clearance for the Audi Q4 e-tron. The Audi Q4 e-tron also turns in a 1.5 m tighter circle, which helps with U-turns and multi-storey ramps.
Which battery will hold up better as a used buy, the Audi Q4 e-tron or the Mercedes-Benz EQB?
Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi Q4 e-tron and 84% for the Mercedes-Benz EQB. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation. Both batteries carry a 8-year manufacturer warranty.
Go deeper on each car
Visit the full model pages for owner feedback, expert reviews, used prices and battery-health information.
Compare against other rivals
Compare similarly sized and priced electric cars before finalising your shortlist.
More Audi Q4 e-tron comparisons
More Mercedes-Benz EQB comparisons
See both cars in our rankings
EVcarsguide scores every verified EV on price, range, family use and running costs. Here is where this pair appears.
Where the Audi Q4 e-tron and Mercedes-Benz EQB rank among the best family EVsWhere the Audi Q4 e-tron and Mercedes-Benz EQB rank among the best electric SUVsWhere the Audi Q4 e-tron and Mercedes-Benz EQB rank among the best motorway EVsWhere the Audi Q4 e-tron and Mercedes-Benz EQB rank among the best city EVsWhere the Audi Q4 e-tron and Mercedes-Benz EQB rank among the cheapest EVs to runWhere the Audi Q4 e-tron and Mercedes-Benz EQB rank among EVs with the biggest boots
If neither is quite right
Explore other verified electric cars that may better suit the priorities this pair does not meet.
Further reading
Explore buying and ownership guides to help you choose between these electric cars.
GuideBuying a Used Audi Q4 e-tron (2021 on): 35, 40, 45, 50 or 55, the Recall, Range & What to Check
A used Audi Q4 e-tron buyer’s guide: every version and battery explained, the 2021-2023 cars vs the 2024 update, the brake-software recall, warranty left, real-world range, what to pay, used vs new, and a printable checklist.
GuideBuying a Used Mercedes EQB (2022-2025): 300, 350 or 250+, Recalls, Real Range & What to Pay
A used Mercedes EQB buyer’s guide: the seven-seat 300 and 350 4MATIC vs the 2024 250+, the steering software recall, real-world range, the battery warranty, what to pay and a printable checklist.
Data accuracy
Specs are sourced from manufacturer websites and manually reviewed. These figures were last verified .