2008 Mercedes Benz Cls550: Reliability Data

Source: NHTSA — 22 complaints
22
Total Complaints
84,997mi
Median Mileage
FUEL/PROPULSION SYSTEM
Top Issue
0
Crash Reports

When Do Complaints Happen?

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

64,625 25th Percentile
84,997 Median Mileage
95,750 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

FUEL/PROPULSION SYSTEM
5
AIR BAGS
3
ELECTRICAL SYSTEM
3
SUSPENSION
2
ENGINE
2
STEERING
1
TIRES
1
SERVICE BRAKES
1
ELECTRONIC STABILITY CONTROL (ESC)
1
EXTERIOR LIGHTING
1

Severity Assessment

0
Crashes
0
Fires
0
Injuries
0
Deaths

Sample Complaint Reports

"TL* THE CONTACT OWNS A 2008 MERCEDES-BENZ 550 CLS. THE CONTACT STATED THAT FUEL COULD BE SMELLED INSIDE THE VEHICLE WHILE DRIVING AND WHILE THE VEHICLE WAS SITTING IN PARK. THE CONTACT TOOK THE VEHICLE TO A DEALER FOR A DIAGNOSTIC TEST. THE TEST RESULTS SHOWED THAT A VENT INSIDE THE FUEL TANK WAS DE..."
"ON MARCH 10, 2012 MY WIFE STARTED THE AFOREMENTIONED VEHICLE AND IMMEDIATELY BEGAN TO SMELL GASOLINE FUMES IN THE PASSENGER COMPARTMENT. AS SHE EXITED THE PARKING GARAGE, THE TOXIC FUEL SMELL BECAME UNBEARABLE AND SHE IMMEDIATELY TURNED- AROUND, RE-ENTERED THE GARAGE, QUICKLY SHUT OFF THE CAR AND EX..."
"WHILE APPROACHING INTERSTATE ON RAMP BEGAN TO HEAR A LOUD WHISTLING SOUND COMING FROM THE FRONT LEFT WHEEL WELL. I PULLED OVER AND FOUND THE LEFT FRONT SUSPENSION BEGINNING TO SINK. THE STRUT LOWER TO A POINT WHERE THE BODY OF THE CAR WAS ONLY 2-3 INCHES ABOVE THE TIRE. WHEN I CHECKED THE DASHBOARD ..."

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