GL-Class (X166)
Reliability Score
Complaints by Engine Code
4.7-V8-Gas
4.7L 8-cylView details
Complaint Breakdown
Known Issues
3.0-V6-Gas
3.0L 6-cylView details
Complaint Breakdown
Known Issues
3.0-V6-Diesel
3.0L 6-cylView details
Complaint Breakdown
Known Issues
Mercedes-Benz GL-Class Unidentified Engine
View details
Complaint Breakdown
Known Issues
Show 2 additional engine variants with limited data
5.5-V8-Gas
5.5L 8-cylView details
Complaint Breakdown
Known Issues
4.6-V8-Gas
4.6L 8-cylView details
Complaint Breakdown
Known Issues
Vehicle-Level Issues
These issues affect the Mercedes-Benz GL-Class regardless of engine variant.
Recalls (9)
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2012-2014 ML350 Bluetec 4Matic and ML550 4Matic, 2012-2015 ML63 AMG 4Matic and ML350 4Matic, 2013-2016 GL350 Bluetec 4Matic, GL550 4Matic and GL63 AMG 4Matic, 2017 GLS350d 4Matic, GLS450 4Matic, GLS550 4Matic and GLS63 AMG 4Matic, 2015 ML400 4Matic, 2016 GLE400 4Matic, GLE350 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic, GLE450 4Matic Coupe and GLE63S AMG 4Matic Coupe, 2015-2016 GL450 4Matic and 2013-2014 GL450 4Matic vehicles equipped with the Active Curve System (ACS). In certain driving conditions, if the oil level in the ACS reservoir is below the minimum level, the oil may foam and leak out of the vent holes in the reservoir cap.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2016 GLE300d 4Matic, E400 4Matic Coupe, GL63 AMG, GLE350, GLE350 4Matic, GLE350d 4Matic, GLE400 4Matic, GLE43 AMG Coupe 4Matic, GLE550e 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic and GLE63S AMG Coupe 4Matic vehicles, 2017 E300 4Matic and GLS63 AMG 4Matic vehicles, and 2016-2017 GL350 4Matic BlueTec, GL450 4Matic, and GL550 4Matic vehicles. The affected vehicles have an electric power steering connector that may be insufficiently sealed, allowing water to enter the control unit.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 AMG GT-S, GLC300, CLA250 and GLE300d 4Matic vehicles, 2013 C250, E350 BlueTec and G63 AMG vehicles, 2008-2014 C300 vehicles, 2013-2014 C300 4Matic and ML350 4Matic vehicles, 2009 C350 vehicles, 2014 CLS550, E350 4Matic, E350 Coupe 4Matic, E350 Wagon 4Matic, GLK350 and SL550 vehicles, 2012 CLS550 4Matic vehicles, 2012-2016 E350 vehicles, 2016-2017 GL450 4Matic vehicles, 2012-2014 ML350 4Matic BlueTec vehicles, 2015 S550, S550 4Matic and C300 4Matic Sedan vehicles, 2015-2016 C300 Sedan vehicles, and 2017 SL63 AMG vehicles. Various control units on these vehicles may have been updated with incorrect software, potentially affecting the correct deployment of the air bags in the event of a crash.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 GLE350 4Matic, GLE350, GLE350 4Matic Bluetec, GL450 4Matic, and GLE450 Coupe 4Matic vehicles. In the affected vehicles, the bolt that connects the upper control arm and the axle stub may not have been properly tightened.
Show 4 older recalls
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2016-2017 GL350 4Matic Bluetec, GL550 4Matic, GLE350 4Matic, GLE43 AMG Coupe, GLE450 4Matic, 2016 GLE300d 4Matic, GLE350, GLE350d 4Matic, GLE400 4Matic, GLE550e 4Matic, GLE63 AMG, GLE63 AMG 4Matic, GLE63S AMG 4Matic Coupe, and 2017 GLS63 AMG vehicles manufactured April 23, 2014, to May 10, 2016. The front passenger seat Occupant Classification System (OCS) calibration may be incorrect, and as a result, the system can incorrectly classify the occupant as a child seat, deactivating the front passenger air bag.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 GL350 4Matic Blutec, GL450 4Matic, GL550 4Matic, ML250 Blutec, ML350, ML350 4Matic, ML400 4Matic and 2015-2016 GL63 AMG 4Matic vehicles manufactured September 29, 2014 through March 27, 2015. The affected vehicles have axle bolts on the front and/or rear drive axle carriers that may not have been assembled correctly. As a result, the remaining bolts may fracture.
Mercedes Benz USA, LLC (Mercedes) is recalling certain model year 2014 GL350 BlueTEC 4Matic, GL450 4Matic, GL550 4Matic, and GL63 AMG vehicles manufactured November 4, 2013, through November 15, 2013. In the affected vehicles, the foldable second row seat bottom may not fold down low enough to allow proper use of the child seat achors. As such, these vehicles do not conform to Federal Motor Vehicle Safety Standard (FMVSS) number 225, "Child Restraint Anchorage Systems."
Mercedes-Benz USA, LLC (Mercedes) is recalling certain model year 2013 GL350 BlueTEC, GL450 4MATIC, GL550 4MATIC, and GL63 AMG vehicles manufactured May 15, 2012 through October 4, 2012. The second row seat belt anchor fitting bolts may not be properly torqued.
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Alternatives in Full-Size SUV
Frequently Asked Questions
What are the most common 2013-2016 Mercedes-Benz GL-Class problems?
The 2013-2016 Mercedes-Benz GL-Class has accumulated 143 NHTSA complaints. The most frequently reported problem areas are Engine, Electrical System, Interior. As with any used vehicle, an inspection before buying and a vehicle history report are recommended.
Is the 2013-2016 Mercedes-Benz GL-Class a good used car?
The 2013-2016 Mercedes-Benz GL-Class can be a sound used car depending on trim, mileage, and maintenance history. With 143 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.
How many NHTSA complaints does the 2013-2016 Mercedes-Benz GL-Class have?
The 2013-2016 Mercedes-Benz GL-Class has 143 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.
What recalls affect the 2013-2016 Mercedes-Benz GL-Class?
There are 9 NHTSA recalls affecting some 2013-2016 Mercedes-Benz GL-Class vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.
What should I check before buying a used Mercedes-Benz GL-Class?
Before buying a used Mercedes-Benz GL-Class, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Engine, Electrical System, Interior, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.
Does the GL-Class have NHTSA crash test ratings?
NHTSA has not published crash test ratings for the 2013-2016 Mercedes-Benz GL-Class. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.
Data from NHTSA federal complaints database. 143 complaints analyzed. Data confidence: high. Last updated: 2026-10-12.