Mercedes-Benz GLS450 — All Years

Reliability and problems by year based on NHTSA complaint data.

Best Years to Buy

Year	Complaints	Top Issue	Verdict
2021	41	2021 GLS 450 VIN # 4JGFF5KE9MA404568 Purch: Nov 26...	Above Average
2019	7	DRIVING ON FREEWAY AT ̃75MPH TOWARD 202 W ARI...	Excellent Reliability
2017	51	VEHICLE IS ONLY 3 WEEKS OLD. A FAULTY ENGINE WIRE ...	Average