2012 Mercedes-Benz Cls550: Reliability Data

Source: NHTSA — 31 complaints
31
Total Complaints
49,280mi
Median Mileage
FUEL/PROPULSION SYSTEM
Top Issue
3
Crash Reports

When Do Complaints Happen?

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

13,969 25th Percentile
49,280 Median Mileage
61,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

FUEL/PROPULSION SYSTEM
8
ENGINE
4
SERVICE BRAKES
3
ELECTRICAL SYSTEM
3
POWER TRAIN
3
UNKNOWN OR OTHER
3
STEERING
2
SUSPENSION
2
WHEELS
1
VISIBILITY:SUN/MOON ROOF ASSEMBLY
1

Severity Assessment

3
Crashes
0
Fires
6
Injuries
0
Deaths

Sample Complaint Reports

"TL* THE CONTACT OWNS A 2012 MERCEDES BENZ CLS550. THE CONTACT STATED THAT WHILE DRIVING 45 MPH, THE BRAKES WERE APPLIED HOWEVER, THE VEHICLE WOULD NOT DECELERATE. IN ADDITION, THE STEERING WHEEL SEIZED SIMULTANEOUSLY AND THE CONTACT LOST CONTROL OF THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER FO..."
"TL* THE CONTACT OWNS A 2012 MERCEDES BENZ CLS550. THE CONTACT STATED THAT WHILE DRIVING 45 MPH, THE BRAKES WERE APPLIED HOWEVER, THE VEHICLE WOULD NOT DECELERATE. IN ADDITION, THE STEERING WHEEL SEIZED SIMULTANEOUSLY AND THE CONTACT LOST CONTROL OF THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER FO..."
"WHILE DRIVING 45 MPH, THE BRAKES WERE APPLIED HOWEVER, THE VEHICLE WOULD NOT DECELERATE. IN ADDITION, THE STEERING WHEEL SEIZED SIMULTANEOUSLY AND THE CONTACT LOST CONTROL OF THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER FOR DIAGNOSIS. T THE MANUFACTURER HAS BEEN CONTACTED AND STATED THAT THEY WO..."

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

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

ENGINE 4 complaints
25th: 40,750 mi Median: 57,500 mi 75th: 63,000 mi
ELECTRICAL SYSTEM 3 complaints
Median: 61,000 mi
POWER TRAIN 3 complaints
Median: 54,000 mi

Where Are Complaints Coming From?

Top states by complaint count.

AZ: 4 VA: 4 MD: 4 FL: 4 CA: 3 IN: 3 TX: 2 GA: 2 NJ: 1 MA: 1

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