BMW 5 Series vs Audi A6
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 5 Series
2015–2016
Reliability composite
68
/ 100
Average
ADAC + MOT + NHTSA + TUV
Estimated used price
€15,200–€22,600Documented issues
1
• EPS steering rack motor failure — €1,500
⭐ Better composite reliability
A
Audi A6
2015–2017
Reliability composite
75
/ 100
Good
ADAC + MOT + NHTSA
Estimated used price
€13,700–€24,000Documented issues
2
• MMI infotainment freeze / boot failure — €400
• Air suspension compressor failure (Allroad / Avant adaptive air) — €800
Bottom Line
The Audi A6 wins on composite reliability across TÜV, ADAC, NHTSA, and DVSA MOT data — typically a sign of lower ownership risk and fewer recurring failure modes at age. The other car isn't necessarily wrong; check its issue list and price-to-condition ratio before deciding.