2007 Mercedes Benz Gl450: Reliability Data

Source: NHTSA — 160 complaints
160
Total Complaints
81,750mi
Median Mileage
SEATS
Top Issue
8
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

53,500 25th Percentile
81,750 Median Mileage
117,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

SEATS
32
ELECTRICAL SYSTEM
25
POWER TRAIN
15
SUSPENSION
8
STEERING
8
SERVICE BRAKES, HYDRAULIC
7
VEHICLE SPEED CONTROL
7
SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER
7
ENGINE
5
FUEL/PROPULSION SYSTEM
4

Severity Assessment

8
Crashes
44
Fires
21
Injuries
0
Deaths

Sample Complaint Reports

"ON THREE SEPARATE OCCASIONS THE 'CHARGE AIR HOSE' CONNECTING TO THE TURBO INTERCOOLER SYSTEM ON MY 2007 MERCEDES GL320CDI HAS FAILED. THE HOSE HAS BEEN REPLACED FOUR TIMES TOTAL. ACCORDING TO INTERNET MESSAGE BOARDS THERE ARE NUMEROUS FAILURES THAT MB HAS FAILED TO FIX INCLUDING MINE. ON ALL OCCA..."
"TL*THE CONTACT OWNS A 2007 MERCEDES BENZ GL450. THE CONTACT HEARD A SQUEAKING NOISE WHEN HE DEPRESSED THE BRAKE PEDAL AND THE STOPPING DISTANCE INCREASED. THE DEALER WAS UNABLE TO DIAGNOSE THE CAUSE OF FAILURE, HOWEVER, THEY GRINDED THE EDGES OF THE BRAKE PADS TO REDUCE THE SQUEAKING NOISE. THE S..."
"TL*THE CONTACT OWNS A 2007 MERCEDES BENZ GL450. THE CONTACT HEARD A SQUEAKING NOISE WHEN HE DEPRESSED THE BRAKE PEDAL AND THE STOPPING DISTANCE INCREASED. THE DEALER WAS UNABLE TO DIAGNOSE THE CAUSE OF FAILURE, HOWEVER, THEY GRINDED THE EDGES OF THE BRAKE PADS TO REDUCE THE SQUEAKING NOISE. THE S..."

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