BMW X5 vs Mercedes-Benz GL-Class
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 X5
2015–2017
Reliability composite
74
/ 100
Good
ADAC + MOT + NHTSA
Estimated used price
€16,400–€25,700Documented issues
2
• Transfer case (ATC450/700) failure — €1,800
• Air suspension bag rupture (rear) — €600
⭐ Better composite reliability
M
Mercedes-Benz GL-Class
2014–2016
Reliability composite
82
/ 100
Good
MOT + NHTSA
Estimated used price
€17,600–€39,400Documented issues
0
Bottom Line
The Mercedes-Benz GL-Class 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.