2018 Mercedes-Benz Cla-Class Safety Report

2018 Mercedes-Benz CLA-Class: Unrated for crash safety, numerous complaints including airbag and engine issues, zero recalls despite related defects in other models.

42Complaints
0Recalls
45/100Reliability Score
1Crash Reports
1Fire Reports
1Injuries
Most reported components: Air Bags (6)Engine (4)Electrical System (4)Unknown Or Other (4)Structure (3)Power Train (2)Electrical System,Unknown Or Other (2)Electrical System,Communication (2)Fuel/Propulsion System (1)Steering,Air Bags (1)

AI Safety Analysis for the 2018 Mercedes-Benz Cla-Class

The 2018 Mercedes-Benz CLA-Class exhibits a mixed safety profile based on the available NHTSA data. While there are no official NHTSA crash test ratings (Overall, Frontal, Side, Rollover are N/A), the vehicle has accumulated 42 total complaints, including 1 crash, 1 fire, and 1 injury incident. A significant concern is the complete absence of recalls for this model year, despite multiple complaints directly referencing issues that have been subject to recalls in other Mercedes-Benz models or earlier CLA-Class years, such as steering column modules/clock springs affecting airbags and steering wheel controls, and roof panel issues. This suggests potential unaddressed safety defects. Common complaint patterns revolve around several critical components. AIR BAGS lead with 6 complaints, often linked to clock spring failures that disable steering wheel controls and potentially the airbag itself. ENGINE issues account for 4 complaints, including sudden loss of power, misfires, and specific problems like the P052E check engine light related to the Positive Crankcase Ventilation (PCV) regulator valve. ELECTRICAL SYSTEM also has 4 complaints, with specific mentions of instrument cluster blackouts while driving, which is a severe safety hazard as it removes critical driver information like speed and fuel. Other notable issues include STRUCTURE complaints (3), specifically related to panoramic sunroof malfunctions, water leaks into the cabin, and even a front stationary roof panel detaching. POWER TRAIN issues (2) include knocking noises from the rear differential at low speeds. The lack of recalls is particularly concerning given the nature and frequency of some complaints, especially those related to airbag functionality and sudden loss of power, which directly impact occupant safety and vehicle control. The single fire incident, where the car randomly caught fire while parked, also raises serious questions about potential underlying defects.

Reliability Score

The 2018 Mercedes-Benz Cla-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 2018 Mercedes-Benz Cla-Class

The following issues have been identified from NHTSA complaint data and owner reports for the 2018 Mercedes-Benz Cla-Class:

IssueSeverityFrequencyTypical Mileage
Airbag/Steering Wheel Control Failure (Clock Spring)
Multiple complaints (6 under AIR BAGS, 1 under STEERING,AIR BAGS) describe clock spring failures leading to inoperable steering wheel buttons, horn, and potential airbag malfunction. Owners report this issue despite their VIN not being included in related recalls for other CLA models.		 High Common unknown miles
Engine Performance Issues (P052e, Loss Of Power)
Several ENGINE complaints (4 total) mention the P052E check engine light related to the Positive Crankcase Ventilation (PCV) regulator valve, and sudden loss of power or misfires, sometimes linked to fuel system corrosion.		 Medium Occasional 30000-60000 miles
Instrument Cluster Blackout
Complaints under ELECTRICAL SYSTEM (4 total) detail the instrument cluster lights going completely black while driving, eliminating speed, fuel, and warning light displays, posing a significant safety risk.		 High Occasional unknown miles
Roof Panel/Sunroof Malfunctions And Leaks
STRUCTURE complaints (3 total) include issues with the panoramic sunroof not closing completely, water leaks into the cabin from the roof, and even a front stationary roof panel detaching while driving.		 Medium Occasional unknown miles
Rear Differential Knocking Noise
POWER TRAIN complaints (2 total) describe a knocking noise from the rear differential at low speeds, indicating potential component failure.		 Medium Occasional 30000-55000 miles

Common Problems Reported by Owners

Based on NHTSA complaint data, the following components account for the majority of reported issues with the 2018 Mercedes-Benz Cla-Class:

Air Bags 14% of complaints

Frequent reports of clock spring failure leading to inoperable steering wheel controls and potential airbag deployment issues.

Engine 10% of complaints

Issues include check engine lights (P052E), sudden loss of power, misfires, and coolant leaks.

Electrical System 10% of complaints

Problems range from instrument cluster blackouts to communication errors affecting SOS e-call and backup cameras.

Structure 7% of complaints

Concerns with sunroof operation, water intrusion, and detached roof panels.

Power Train 5% of complaints

Reports of knocking noises from the rear differential at low speeds.

Frequently Asked Questions About the 2018 Mercedes-Benz Cla-Class

Is the 2018 Mercedes-Benz CLA-Class safe?

Based on NHTSA data, the 2018 Mercedes-Benz CLA-Class has no official crash test ratings, making it difficult to assess its crashworthiness. However, it has 42 complaints, including 1 crash, 1 fire, and 1 injury. Significant safety concerns arise from multiple complaints about airbag system failures (clock spring), sudden engine power loss, and instrument cluster blackouts, none of which have been addressed by recalls for this specific model year.

What are common problems with the 2018 Mercedes-Benz CLA-Class?

The most reported issues for the 2018 Mercedes-Benz CLA-Class are related to AIR BAGS (6 complaints, often clock spring failure), ENGINE (4 complaints, including P052E code and power loss), and ELECTRICAL SYSTEM (4 complaints, such as instrument cluster blackouts). Other notable problems include STRUCTURE issues like sunroof malfunctions and water leaks, and POWER TRAIN concerns like rear differential noise.

Are there any recalls for the 2018 Mercedes-Benz CLA-Class?

According to NHTSA data, there are currently no recalls issued for the 2018 Mercedes-Benz CLA-Class. This is a significant concern, as several complaints describe issues (e.g., clock spring, roof panel) that have been subject to recalls for other Mercedes-Benz models or earlier CLA-Class years.

What should I look out for when buying a used 2018 Mercedes-Benz CLA-Class?

When considering a used 2018 Mercedes-Benz CLA-Class, pay close attention to the functionality of steering wheel controls and check for any airbag warning lights, as clock spring failures are common. Also, listen for unusual noises from the engine or rear differential, and inspect the sunroof and interior for signs of water leaks or roof panel issues. A pre-purchase inspection by a Mercedes-Benz specialist is highly recommended.

How reliable is the 2018 Mercedes-Benz CLA-Class?

The reliability of the 2018 Mercedes-Benz CLA-Class appears to be questionable based on the 42 NHTSA complaints, which include critical component failures like airbag systems, engine issues, and electrical system malfunctions. The absence of recalls for these recurring problems further suggests potential unaddressed reliability concerns.

Buyer Advice

Our recommendation: Given the lack of crash test ratings and numerous unaddressed safety-related complaints, exercise caution. A thorough pre-purchase inspection by a Mercedes-Benz specialist is essential to identify potential issues, especially concerning airbags, engine, and electrical systems.

NHTSA Data Summary for 2018 Mercedes-Benz Cla-Class

This safety report is based on a comprehensive analysis of data from the National Highway Traffic Safety Administration (NHTSA) for the 2018 Mercedes-Benz Cla-Class. The data includes 42 consumer complaints filed by vehicle owners, 0 manufacturer-initiated safety recalls, 1 reported crashes, 1 fire incidents, 1 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.