2007 Mercedes Benz S550: Reliability Data

Source: NHTSA — 83 complaints
83
Total Complaints
71,500mi
Median Mileage
Suspension
Top Issue
0
Crash Reports

When Do Complaints Happen?

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

59,412 25th Percentile
71,500 Median Mileage
122,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Suspension
12
Electrical System
10
Vehicle Speed Control
9
Power Train
8
Engine
8
Unknown Or Other
6
Automatic Transmission
5
Engine And Engine Cooling
3
Fuel/Propulsion System
3
Steering
3

Severity Assessment

0
Crashes
2
Fires
0
Injuries
0
Deaths

Sample Complaint Reports

"TL*THE CONTACT OWNS A 2007 MERCEDES BENZ S550. WHILE DRIVING 65 MPH, THE VEHICLE LUNGED FORWARD AND BACKWARDS AND THEN STOPPED WITHOUT WARNING. THE ENGINE REMAINED RUNNING; HOWEVER, THE VEHICLE WOULD NOT ACCELERATE. AS OF DECEMBER 20, 2007, THE DEALER HAD NOT INSPECTED THE VEHICLE. THE CURRENT A..."
"2007 MERCEDES-BENZ S550V SEAT BELTS KEEP LOCKING AND CAN NOT BE USED. CONSUMER STATES THAT THE VEHICLE ALSO HAVE PROBLEMS WITH THE TRANSMISSION, WINDSHIELD WIPERS, AND RADIO. *NJ THE PASSENGER SEATBELT WOULD LOCK AND COULD NOT BE USED. THE TRANSMISSION WAS STUCK IN PARK, THE WINDSHIELD WIPERS ..."
"2007 MERCEDES-BENZ S550V SEAT BELTS KEEP LOCKING AND CAN NOT BE USED. CONSUMER STATES THAT THE VEHICLE ALSO HAVE PROBLEMS WITH THE TRANSMISSION, WINDSHIELD WIPERS, AND RADIO. *NJ THE PASSENGER SEATBELT WOULD LOCK AND COULD NOT BE USED. THE TRANSMISSION WAS STUCK IN PARK, THE WINDSHIELD WIPERS ..."

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.

Suspension 12 complaints
25th: 90,000 mi Median: 120,000 mi 75th: 169,500 mi
Electrical System 10 complaints
25th: 61,750 mi Median: 64,061 mi 75th: 83,530 mi
Vehicle Speed Control 9 complaints
25th: 45,325 mi Median: 60,000 mi 75th: 71,600 mi
Power Train 8 complaints
25th: 66,280 mi Median: 72,200 mi 75th: 109,000 mi
Engine 8 complaints
25th: 70,000 mi Median: 77,000 mi 75th: 109,234 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 23 FL: 10 GA: 7 MD: 6 NY: 6 NC: 6 TX: 6 VA: 3 PA: 3 NJ: 3

Who Files Complaints?

1.2%
Original Owners
98.8%
Second+ Owners

Mercedes Benz S550 — Other Years

See how this model compares across different model years.

YearComplaintsCrashes
2008252

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