2015 Mercedes-Benz S-Class Safety Report

2015 Mercedes-Benz S-Class: No Recalls Despite Recurring Engine, Steering, and Sunroof Failures; 3 Fires Reported

51Complaints
0Recalls
45/100Reliability Score
6Crash Reports
3Fire Reports
8Injuries
Most reported components: Unknown Or Other (7)Seat Belts (6)Steering (4)Structure (4)Wheels (4)Air Bags (2)Tires (2)Visibility (2)Fuel System, Gasoline,Service Brakes, Hydraulic (1)Wheels,Engine (1)

AI Safety Analysis for the 2015 Mercedes-Benz S-Class

The 2015 Mercedes-Benz S-Class presents a mixed safety picture based on NHTSA data. While there are no official NHTSA crash test ratings available for this model year, the vehicle has accumulated 51 complaints, including 6 crashes, 3 fires, and 8 injuries, with no reported fatalities. A significant concern is the complete absence of recalls for this model, despite several complaints directly referencing issues that align with existing recalls for similar Mercedes-Benz vehicles (e.g., sunroof panel issues related to recall 21V-197). This suggests potential gaps in recall coverage or owner awareness. Common complaint patterns reveal recurring issues with critical components. 'UNKNOWN OR OTHER' is the top complaint category with 7 reports, followed closely by 'SEAT BELTS' (6 reports) and 'STEERING' (4 reports). Specific examples include loss of electric steering assist, non-retracting seatbelts, and engine failures. The 3 reported fires are particularly alarming, with one instance describing a car burning in a parking lot after being driven, and another mentioning a heated windshield causing a fire in cold temperatures. Despite the luxury segment, the S-Class exhibits several concerning mechanical and structural issues. Engine failures, often requiring full replacement due to cylinder wall scoring or coolant leaks, are reported, sometimes at relatively low mileages (e.g., 79,000 miles). Sunroof panel issues, including spontaneous explosions, stress cracks, and fading, are also prevalent, with owners questioning why their vehicles are not included in relevant recalls. The lack of official crash test data makes it difficult to assess passive safety performance, but the active safety concerns highlighted by complaints, such as steering loss and non-functional seatbelts, are significant.

Reliability Score

The 2015 Mercedes-Benz S-Class receives a reliability score of 45 out of 100 based on analysis of NHTSA complaint data, recall history, crash reports, and safety ratings. This indicates average reliability — some notable concerns exist that prospective buyers should be aware of.

Known Issues for the 2015 Mercedes-Benz S-Class

The following issues have been identified from NHTSA complaint data and owner reports for the 2015 Mercedes-Benz S-Class:

IssueSeverityFrequencyTypical Mileage
Engine Failure
Complete engine failure due to cylinder wall scoring, coolant leaks, or other internal issues, often requiring full engine replacement.		 High Occasional 79000-90000 miles
Loss Of Electric Steering Assist
Sudden loss of power steering, making the vehicle extremely difficult to control, with 'power steering malfunction' warnings.		 High Occasional unknown miles
Non-Retracting Seat Belts
Rear and sometimes front seatbelts fail to retract, leaving passengers unrestrained or making the belts unusable.		 High Common unknown miles
Sunroof Panel Issues
Spontaneous explosion, stress cracks, fading, or detachment of the panoramic sunroof panel, with some owners questioning recall eligibility.		 Medium Common unknown miles
Vehicle Fires
Reports of the vehicle catching fire, including one instance linked to a heated windshield and another where the car burned in a parking lot.		 High Rare unknown miles
Headlight Malfunction
Headlights going 'Light Inoperative' while driving, severely reducing visibility on dark roads.		 Medium Rare unknown miles

Common Problems Reported by Owners

Based on NHTSA complaint data, the following components account for the majority of reported issues with the 2015 Mercedes-Benz S-Class:

Unknown Or Other 13% of complaints

A variety of unspecified or miscellaneous issues, indicating diverse problems not fitting into standard categories.

Seat Belts 11% of complaints

Frequent reports of seat belts, particularly rear ones, failing to retract properly.

Steering 7% of complaints

Issues including loss of power steering assist and steering wheel module warnings.

Structure 7% of complaints

Problems related to the vehicle's body, including sunroof panel failures and door hinge issues.

Wheels 7% of complaints

Complaints about tire blowouts and abnormal vibrations.

Air Bags 3% of complaints

Air bag warning lights illuminated with malfunction messages.

Tires 3% of complaints

Specific tire issues, including blowouts and vibrations.

Visibility 3% of complaints

Problems with windshield cracking and headlight malfunctions.

Engine 2% of complaints

Reports of complete engine failure requiring replacement.

Frequently Asked Questions About the 2015 Mercedes-Benz S-Class

Is the 2015 Mercedes-Benz S-Class safe?

Based on NHTSA data, the 2015 Mercedes-Benz S-Class has 51 complaints, including 6 crashes, 3 fires, and 8 injuries. While there are no official crash test ratings, recurring issues with critical components like steering, seat belts, and engine failures, along with fire incidents, raise significant safety concerns. The lack of recalls despite these issues is also notable.

What are common problems with the 2015 Mercedes-Benz S-Class?

The most reported issues for the 2015 Mercedes-Benz S-Class include 'UNKNOWN OR OTHER' (7 complaints), 'SEAT BELTS' (6 complaints, often non-retracting), 'STEERING' (4 complaints, including loss of power assist), 'STRUCTURE' (4 complaints, notably sunroof issues), and 'WHEELS' (4 complaints, including tire blowouts). Engine failures and air bag malfunctions are also reported.

Are there any recalls for the 2015 Mercedes-Benz S-Class?

According to NHTSA data, there are currently no recalls issued for the 2015 Mercedes-Benz S-Class. This is despite several owner complaints describing issues that appear similar to problems addressed in recalls for other Mercedes-Benz models, such as sunroof panel defects.

What are the crash test ratings for the 2015 Mercedes-Benz S-Class?

The 2015 Mercedes-Benz S-Class does not have official NHTSA crash test ratings for Overall, Frontal, Side, or Rollover categories. This makes it difficult to assess its performance in controlled crash scenarios.

Have there been any fires reported for the 2015 Mercedes-Benz S-Class?

Yes, NHTSA data includes 3 reported fires for the 2015 Mercedes-Benz S-Class. One complaint describes the car burning in a parking lot, and another mentions the heated windshield causing the car to catch fire in cold temperatures.

Buyer Advice

Our recommendation: Given the recurring critical component failures (engine, steering, seatbelts), reported fires, and lack of recalls despite numerous complaints, potential buyers should proceed with extreme caution and ensure a thorough pre-purchase inspection by a Mercedes-Benz specialist, focusing on these known issues.

NHTSA Data Summary for 2015 Mercedes-Benz S-Class

This safety report is based on a comprehensive analysis of data from the National Highway Traffic Safety Administration (NHTSA) for the 2015 Mercedes-Benz S-Class. The data includes 51 consumer complaints filed by vehicle owners, 0 manufacturer-initiated safety recalls, 6 reported crashes, 3 fire incidents, 8 reported injuries, and safety rating assessments associated with this vehicle.

All data presented in this report is sourced from public NHTSA databases. Our AI analysis identifies patterns across complaint narratives, correlates them with recall history, and produces the safety assessment above. This analysis is updated as new complaints and recalls are filed with the NHTSA.

Consumers are encouraged to report vehicle safety problems to the NHTSA at nhtsa.gov. If your vehicle is subject to a recall, contact your dealer to schedule the free repair.