2018 Mercedes-Benz Glc-Class Safety Report

2018 Mercedes-Benz GLC-Class: High crash safety ratings, but numerous owner complaints about engine, transmission, and airbag issues.

96Complaints
0Recalls
★★★★★Safety Rating
65/100Reliability Score
5Crash Reports
1Fire Reports
4Injuries
Most reported components: Unknown Or Other (16)Engine (13)Power Train (7)Structure (6)Seat Belts (6)Air Bags (5)Service Brakes (5)Fuel/Propulsion System (4)Engine,Fuel/Propulsion System (4)Electrical System,Engine (3)

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

The 2018 Mercedes-Benz GLC-Class presents a generally strong safety profile based on NHTSA data, achieving a perfect 5-star overall safety rating, including 5 stars for frontal and side crash tests, and a 4-star rollover rating. This indicates excellent performance in controlled crash scenarios. However, despite the high ratings, the vehicle has accumulated 96 total complaints, with 5 crashes, 1 fire, and 4 injuries reported. A notable absence of recalls for this model year is unusual and suggests that while individual component failures are occurring, they haven't reached a threshold for manufacturer-initiated safety campaigns. Analysis of the complaint data reveals several recurring patterns. The 'UNKNOWN OR OTHER' category leads with 16 complaints, followed closely by 'ENGINE' with 13 complaints, and 'POWER TRAIN' with 7. Specific issues within these categories include frequent reports of crankcase ventilation (PCV valve) malfunctions, often resulting in check engine lights and costly repairs, as well as significant transmission issues where the vehicle may unexpectedly shift into neutral or fail to accelerate. Airbag and seat belt malfunctions also appear, with 5 complaints for airbags and 6 for seat belts, including instances of unexpected airbag deployment and seat belt latches retracting into panels. While the crash test performance is exemplary, the volume and nature of the complaints, particularly concerning critical components like the engine and power train, suggest potential reliability concerns that are not reflected in the crash ratings. The lack of recalls for these issues means owners are bearing the cost of repairs for what appear to be common manufacturing defects. Prospective buyers should be aware of these documented issues, especially the recurring PCV valve and transmission problems, which can be expensive to rectify.

Reliability Score

The 2018 Mercedes-Benz Glc-Class receives a reliability score of 65 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 Glc-Class

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

IssueSeverityFrequencyTypical Mileage
Crankcase Ventilation (Pcv) Valve Malfunction
Multiple complaints (e.g., P052E error code) indicate a common failure of the crankcase ventilation valve, leading to check engine lights and expensive repairs, often exceeding $1000.		 Medium Common 30000-60000 miles
Transmission Shifting Issues
Vehicle unexpectedly shifts into neutral while driving, fails to accelerate, or struggles to engage drive gears, posing a significant safety risk, with 7 'POWER TRAIN' complaints.		 High Common unknown miles
Airbag Malfunction/Deployment
Reports of 'Front Air Bag Malfunction' messages, rattling from the steering column, and even unexpected airbag deployment without impact, with 5 'AIR BAGS' complaints.		 High Occasional unknown miles
Seat Belt Latch Retraction
Rear seat belt latch plates retracting into the side paneling, rendering the seat belts unusable, contributing to 6 'SEAT BELTS' complaints.		 Medium Occasional unknown miles
Sudden Unintended Acceleration
Vehicle lurches forward unexpectedly while braking or at low speeds, as if the gas pedal was floored.		 High Rare unknown miles
Sunroof Explosion
Sunroof spontaneously exploding while driving at highway speeds, with glass entering the cabin.		 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 2018 Mercedes-Benz Glc-Class:

Unknown Or Other 16% of complaints

Highest complaint category, indicating various unspecified issues or issues not fitting other categories.

Engine 13% of complaints

Frequent reports of check engine lights, P052E error codes related to crankcase ventilation, and turbo transducer issues.

Power Train 7% of complaints

Issues with transmission shifting, vehicle going into neutral unexpectedly, and failure to accelerate.

Seat Belts 6% of complaints

Problems with seat belt alarms, and rear seat belt latches retracting into panels.

Structure 6% of complaints

Includes issues like exploding sunroofs.

Air Bags 5% of complaints

Malfunction warnings, rattling from steering column, and unexpected deployment.

Service Brakes 5% of complaints

Issues related to braking system performance.

Fuel/Propulsion System 4% of complaints

Problems with fuel pumps, fuel tanks, and fuel pressure sensors.

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

Is the 2018 Mercedes-Benz GLC-CLASS safe?

Based on NHTSA crash test ratings, the 2018 Mercedes-Benz GLC-Class is very safe, achieving a 5-star overall rating, including 5 stars for frontal and side impacts, and 4 stars for rollover. However, owner complaints indicate potential reliability issues with critical components like the engine and transmission that could impact safety during operation.

What are common problems with the 2018 Mercedes-Benz GLC-CLASS?

The most reported issues for the 2018 Mercedes-Benz GLC-Class include crankcase ventilation (PCV valve) malfunctions (often P052E error code), transmission problems such as unexpected shifting into neutral or failure to accelerate, and airbag/seat belt malfunctions. Engine-related complaints account for 13.5% of total complaints, and power train issues for 7.3%.

Has the 2018 Mercedes-Benz GLC-CLASS been recalled?

According to NHTSA data, the 2018 Mercedes-Benz GLC-Class has 0 recalls, which is unusual given the number of owner complaints about recurring issues.

Are there any known engine problems with the 2018 Mercedes-Benz GLC-CLASS?

Yes, engine problems are a significant concern, with 13 complaints. The most frequently cited issue is a malfunction of the crankcase ventilation valve (PCV valve), often indicated by a P052E error code, which can be costly to repair. Other engine-related issues include turbo transducer problems.

What should I look out for when buying a used 2018 Mercedes-Benz GLC-CLASS?

When buying a used 2018 Mercedes-Benz GLC-Class, pay close attention to any check engine lights (especially for P052E codes), test the transmission thoroughly for smooth shifting and ensure it doesn't unexpectedly go into neutral, and check for any airbag or seat belt warning lights or malfunctions. A pre-purchase inspection by a Mercedes-Benz specialist is highly recommended.

Buyer Advice

Our recommendation: While the 2018 Mercedes-Benz GLC-Class boasts excellent crash safety ratings, be aware of common and potentially expensive engine (PCV valve) and transmission issues reported by owners; a thorough pre-purchase inspection is crucial.

NHTSA Data Summary for 2018 Mercedes-Benz Glc-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 Glc-Class. The data includes 96 consumer complaints filed by vehicle owners, 0 manufacturer-initiated safety recalls, 5 reported crashes, 1 fire incidents, 4 reported injuries, and safety rating assessments associated with this vehicle.

The NHTSA has assigned the 2018 Mercedes-Benz Glc-Class an overall safety rating of 5 out of 5 stars, with a frontal crash rating of 5 stars, a side crash rating of 5 stars, and a rollover rating of 4 stars. These ratings are determined through controlled crash testing conducted by the NHTSA.

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.