Audi
A5
BMW
5 Series
Audi A5 vs BMW 5 Series: 2025 Comparison
The short answer
The Audi A5 offers fuel economy, while the BMW 5 Series excels at power instead. Choose the Audi A5 if you prioritize fuel economy in daily driving, or the BMW 5 Series if power matters more for your needs. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
A5
Overall
Sentiment is sharply divided by generation. For the B9/B9.5 generation (approximately 2017-2024 models), feedback is overwhelmingly positive. Owners praise these models for being "rock solid," offering a superb driving experience ("drives like it's on rails"), excellent build quality with no squeaks even at high mileage, and strong reliability with proper maintenance.
Best version to buy
For the B9/B9.5 generation, the A5 Sportback is the most recommended body style for its blend of coupe-like aesthetics and hatchback practicality. The S-Line trim is strongly advised for its superior interior and sportier suspension.
Known issues
- ⚠**B9/B9.5 Generation (2017-2024):** * High maintenance and repair costs out of warranty. Frequency: very frequent. * Known issues with the 2.0T engine (e.g., water pump failure). Frequency: recurrent.
- ⚠**B10 Generation (2025+):** * Severe software and electronic glitches (drive assist failures, phantom alerts, SOS connectivity loss, infotainment crashes). Frequency: very frequent. * Unreliable mobile app and digital key functionality.
5 Series
Overall
Sentiment is highly polarized and generation-dependent. For the latest generation (G60, circa 2024-2025), initial owner feedback is sharply negative, with strong criticism directed at its excessive physical size, the near-total removal of physical controls in favor of digital interfaces, and perceived lack of driving satisfaction, particularly in lower-powered variants like the 520d. In contrast, feedback on the preceding F10 (circa 2010-2017) and G30 (circa 2017-2023) generations is generally positive, with owners expressing love for their vehicles, praising them as excellent daily drivers that balance comfort, performance, and a high-quality, driver-focused interior.
Best version to buy
For the F10 generation, the 535i with the N55 inline-six engine is specifically recommended over V8 models (550i, 750i) due to its superior reliability and lower maintenance costs, making it a smarter choice for used buyers. For the G30 generation, the 530i is noted as having strong torque and not being slow.
Known issues
- ⚠Excessive size and lack of physical controls (G60 generation): criticized as too large and unsatisfying due to digital switches for even basic functions like airflow vents. Frequency: recurrent.
- ⚠High maintenance costs and unreliable engines (specific to older V8 models): the N63 V8 engine (in 550i/750i) is regarded as one of BMW's most unreliable, requiring expensive repairs.
- ⚠Digital interface and haptic feedback concerns (newer generations): buttons may not work in very cold weather (below -10°C / 14°F), failing to recognize touch with gloves. Frequency: isolated.
The verdict
The Audi A5 is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the BMW 5 Series, based on the data above. If power matters more to you than running costs, the BMW 5 Series is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Audi A5 or the BMW 5 Series?
Owner reports show similar reliability sentiment for the Audi A5 and the BMW 5 Series. Check the known issues listed above for specific differences between the two.
Which is better for families, the Audi A5 or the BMW 5 Series?
Both seat a similar number of passengers based on our data. The Audi A5 is classed as a Station wagon, the BMW 5 Series as a Sedan, which affects cargo space and ride height for family use.
Which has better fuel economy, the Audi A5 or the BMW 5 Series?
The Audi A5 is more fuel-efficient on paper: 2.2-7.4 L/100km combined versus 9.7-10.0 L/100km for the BMW 5 Series, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Audi A5 or the BMW 5 Series?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the BMW 5 Series than the Audi A5. See the known issues comparison above.