2021 Mercedes-Benz Gle 450: Reliability Data

Source: NHTSA — 27 complaints
27
Total Complaints
ELECTRICAL SYSTEM
Top Issue
0
Crash Reports

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM
8
ENGINE
7
UNKNOWN OR OTHER
3
POWER TRAIN
2
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
1
EXTERIOR LIGHTING
1
VISIBILITY/WIPER
1
VEHICLE SPEED CONTROL
1
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
1
FORWARD COLLISION AVOIDANCE: WARNINGS
1

Severity Assessment

0
Crashes
0
Fires
0
Injuries
0
Deaths

Sample Complaint Reports

"THE 48V BATTERY AFTER DRIVING NEW VEHICLE ONLY 230 MILES GOES DEAD. THE AUTO WILL NOT START AND CANNOT BE JUMP STARTED. RESULT IS BEING STRANDED ROADSIDE. REQUIRED A TOW. MERCEDES SAYS DEAD BATTERY (BRAND NEW) NEEDS TO BE REPLACED. BATTERY WENT DEAD ON DECEMBER 10. DEALER TELLS ME NO BATTERIES ARE A..."
"THERE ARE NUMEROUS REPORTS OF THE 48V BATTERY FAILING ON MULTIPLE MERCEDES MODELS USING THE 6 CYLINDER WITH ISG ENGINE. MERCEDES SHOULD DO A RECALL TO REPLACE ALL 48V BATTERIES AS THIS PROBLEM MAKES THE CARS UNRELIABLE AND UNSAFE TO USE AS SOMETIMES THIS 48V BATTERY SYSTEM FAILS WHILE DRIVING."
"The contact owns a 2021 Mercedes-Benz GLE450. The contact stated while driving at various speeds the vehicle loss motive power. The 48V battery malfunction and coolant hot turn-off vehicle message were displayed on the instrument panel. The battery indicator warning light was illuminated. The vehicl..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28