2014 Mercedes-Benz CLS550 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
10 owner complaints analyzed
4 distinct recall campaigns
74,717 mi median reported failure mileage
Scope: 2014 model year. Data snapshot: . 6 complaints include usable failure mileage.
Most common problems
Suspension is the most frequently named component, appearing in 2 of 10 complaints (20.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 2 | 20.0% |
| Transmission and shifting | 1 | 10.0% |
| Steering behavior | 1 | 10.0% |
| Fuel system concerns | 1 | 10.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Suspension | 2 |
| Air Bags | 1 |
| Fuel/Propulsion System | 1 |
| Power Train | 1 |
| Service Brakes | 1 |
| Steering | 1 |
| Structure:Body | 1 |
| Unknown Or Other | 1 |
Suspension: 2; Air Bags: 1; Fuel/Propulsion System: 1; Power Train: 1; Service Brakes: 1; Steering: 1; Structure:Body: 1; Unknown Or Other: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 2 |
| 75,000 to 99,999 | 3 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 1; 25,000 to 49,999: 0; 50,000 to 74,999: 2; 75,000 to 99,999: 3; 100,000 to 149,999: 0; 150,000 and above: 0
75,000 to 99,999 miles has the most reports with usable mileage (3). 4 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2014 | 1 |
| 2017 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2022 | 2 |
| 2025 | 1 |
| 2026 | 1 |
2014: 1; 2017: 1; 2019: 1; 2020: 3; 2022: 2; 2025: 1; 2026: 1
Pattern summary
Suspension leads the component reports. Braking behavior appears in 2 complaint narratives. Transmission and shifting appears in 1 complaint narratives. Steering behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11317698 · 2020-03-12 (March 12, 2020)
TL* THE CONTACT OWNS A 2014 MERCEDES BENZ CLS550. THE CONTACT STATED THAT WHILE DRIVING AT LOW SPEEDS AND OR REVERSING WITH THE BRAKE PEDAL DEPRESSED, THE VEHICLE INDEPENDENTLY SHIFTED INTO PARK WITHOUT WARNING. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF WILMINGTON LOCATED AT (3801 LANCASTER PIKE, WILMINGTON, DE 19805 [phone removed]) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE GPS/TRACKING DEVICE NEEDED TO BE REMOVED. THE VEHICLE WAS REPAIRED BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE SAME DEALER WHERE DIAGNOSED AND THE…
Owner-reported narrative. 76,434 miles reported. Look up ODI 11317698 at NHTSA ↗
Owner report 11711966 · 2026-01-19 (January 19, 2026)
After the Mercedes dealer replaced the corroded rear sub frame under the 20 year extended warranty, my brake line failed so I took it back & found out that the brake lines were corroded. I paid nothing for the subframe since it was under the warranty but I ended up paying $4114 to replace the corroded brake lines. The dealer should have checked for corrosion while the subframe was out of the car, especially since this is a known issue. The parts were only $380 and $3800+ was labor. My brakes completely failed while driving on Christmas Eve. I t…
Owner-reported narrative. Look up ODI 11711966 at NHTSA ↗
Owner report 11055895 · 2017-12-21 (December 21, 2017)
I RECENTLY PURCHASED A VEHICLE FROM THE NAME DEALERSHIP ONLINE. THE VEHICLE POWER STEERING MALFUNCTIONS WITHIN APPROX. 20 MINS AFTER VEHICLE IS DRIVEN RENDERING THE VEHICLE UNSAFE FOR OPERATION. I WAS TOLD BY THE SELLER AND DEALERSHIP... TEXT MESSAGE SAVED, THAT THEY STAND BEHIND THEIR PRODUCTS AND THAT THE VEHICLE BEING SOLD ONLINE HAD NO PROBLEMS AND PASS ALL REQUIRED USED CAR INSPECTIONS, CARFAX TO BE IN GOOD WORKING ORDER. I RESIDE IN MS, SEARCHED ONLINE SOME TIME PRIOR TO BUYING. I READ THE DEALERSHIP REVIEWS WHICH WERE SATISFACTORY UNTIL …
Owner-reported narrative. 73,000 miles reported. Look up ODI 11055895 at NHTSA ↗
Owner report 11338036 · 2020-07-07 (July 7, 2020)
WHILE VEHICLE WAS STATIONARY IN GARAGE, WE BEGAN NOTICING A PROFUSE GAS/FUEL SMELL. IT BECAME INCREASINGLY STRONG IN AND OUT OF THE VEHICLE. APPROXIMATELY 3 DAYS AFTER SMELL WAS NOTICED, I CONTACTED THE LOCAL MERCEDES BENZ DEALERSHIP TO ADVISE OF THE ISSUE. I ALSO DID SOME RESEARCH ONLINE, AND DISCOVERED THAT PREVIOUS YEARS SPECIFICALLY; 2006-2011 CLS CLASS VEHICLES EXHIBITED THE SAME DEFECT WHICH WAS ADDRESSED WITH THE NHTSA AND TO WHICH MB-USA AGREED TO EXTEND THE WARRANTY FOR "COVERED FUEL TANK COMPONENTS" FROM THE ORIGINAL 4 YEARS TO 15 YEA…
Owner-reported narrative. 82,000 miles reported. Look up ODI 11338036 at NHTSA ↗