BMW 3 Series vs Audi A4
Side-by-side reliability, price, and known-issue comparison for used-car buyers. Composite scores come from TÜV (Germany), ADAC (pan-European), NHTSA (US-sold variants), and DVSA MOT (UK inspections).
B
BMW 3 Series
2015–2017
Reliability composite
75
/ 100
Good
ADAC + MOT + NHTSA
Estimated used price
€10,000–€17,700Documented issues
2
• Plastic coolant fittings degrade — €200
• Run-flat tyre harsh-ride / sidewall failure — €150
A
Audi A4
2015–2017
Reliability composite
75
/ 100
Good
ADAC + MOT + NHTSA
Estimated used price
€10,800–€17,000Documented issues
1
• Sunroof drain blockage + module corrosion — €400
Bottom Line
These two are statistically tied on reliability composite. Decide based on the issue list, drive preference, and ownership cost projections — both are reasonable buys with similar long-term risk profiles. Plug your specific listing into the analyzer to factor in mileage, asking price, and current service history.