Most common 2010 Mercedes-Benz GLK350 problems
Share of the 241 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz GLK350 complaints by model year
Best GLK350 years: 2007, 2014. Years to avoid: 2010. Compare all years →
2010 Mercedes-Benz GLK350 recalls (5)
Air bags › Frontal › Passenger side › Inflator module
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014 C250, C300 4Matic, C350, C63 AMG, E350 4Matic Coupe, E350 Cabrio, E350 Coupe, SLS AMG Cabrio, SLS AMG Coupe, 2014-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, GLK 350, GLK250 BlueTec 4Matic, GLK350 RWD, 2015-2017 E400 4Matic Coupe, E400 Cabrio, E400…
Remedy: MBUSA will notify owners, and dealers will replace the passenger frontal air bag module, free of charge. The recall began March 29, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.
Air bags › Frontal › Passenger side › Inflator module
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2013 C250, C250 Coupe, C350 Coupe 4Matic, C300 4Matic, C350, C350 Coupe, C63 AMG, C63 Coupe, E350 Cabrio, E350 Coupe, E550 Cabrio, E350 Coupe 4Matic, E550 Coupe, GLK350 4Matic, GLK250 Bluetec 4Matic, GLK350, SLS Coupe, SLS AMG GT Coupe, and SLS Roadster vehicles sold, or ever…
Remedy: MBUSA will notify owners, and dealers will replace the passenger frontal air bag module, free of charge. Mercedes issued an interim notification to owners on February 23, 2018.
Air bags › Frontal › Passenger side › Inflator module
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2008-2011 C300 Sedan, C300 4matic Sedan, C350 Sedan, C63 AMG Sedan vehicles, 2010-2011 GLK350, GLK350 4-Matic and E350 Coupe vehicles, 2011 SLS AMG, E350 Convertible, E550 Coupe and E550 Convertible vehicles originally sold, or ever registered, in Alabama,…
Remedy: MBUSA will notify owners, and dealers will replace the passenger frontal air bag modules, free of charge. Owners were sent an interim notification October 2016.
Air bags › Frontal › Driver side › Inflator module
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2009-2010 ML320 BlueTec 4Matic, GL320 BlueTec 4Matic and R320 CDI 4Matic, 2011 E350 Cabriolet and E550 Cabriolet, 2009-2011 ML350, ML350 4Matic, ML550 4Matic, ML63 AMG, and C63 AMG, 2010-2011 ML450 4Matic Hybrid, E350 Coupe, E350 4Matic, E550 Coupe, E550 4Matic,…
Remedy: MBUSA will their notify owners, and Fiat Chrysler will notify the affected Chrysler owners. Dealers for the respective brands will replace the driver's frontal air bag module, free of charge.
Air bags › Frontal › Sensor/control module-inactive
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2008-2009 C300 Sedan, C300 4Matic, C63 AMG, and C350 vehicles, and 2010 GLK350 and GLK350 4Matic vehicles. Due to a manufacturing error, the air bag control unit may corrode and cause the control unit to malfunction.
Remedy: MBUSA will notify owners, and dealers will inspect the air bag control unit and replace it, as necessary, free of charge. Mercedes-Benz issued an interim notification to owners on December 23, 2015.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2010 Mercedes-Benz GLK350:
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited.
What 2010 Mercedes-Benz GLK350 owners say
Air bags all 149 →
The contact owns a 2010 Mercedes-Benz GLK350. The contact stated while driving 60 MPH, the airbags warning light illuminated and remained illuminated. The contact stated that the VIN was not included in NHTSA Campaign Number: 19V010000 (Air Bags). The local dealer was contacted but provided no assistance. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 77,000.
My 2010 glk 350 4matic first while taking my daughter to school one day my dashboard lights up and start making a alert sound ,my dashboards reads steering wheel malfunction/abs/ebs brake inoperative. Had it diagnosed and service tech couldn't find the problem related to this . He try to get me to fix my sterring wheel pump and coolant fan!! Idk I didn't let the device tech do any work . I saw on you tube how to do a left right sterring wheel and the service code disappeared it been two weeks and it hasn't came on all.now I got another service code srs airbag 2 malfunction/inoperative!! .when car is on it shows that air bag 2 isn't on !! This has to be a manufacturer error since not even the service tech knew what exactly trigger this to show on my dashboard.
Fuel & propulsion system all 30 →
The contact owns a 2010 Mercedes-Benz GLK350. The contact stated that fuel was present leaking from the rear passenger's side of the vehicle onto the ground. The vehicle was towed to an independent mechanic who diagnosed that the fuel pump was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were not yet contacted. The failure mileage was 50,000.
Extremely Urgent Safety Warning! Similar to the the passenger fuel filter extended warranty on the passenger side, the driver's side plastic fuel filter pump is obviously visably defective and forming a large crack, thereby leaking a significant amount gasoline into the back seat, with much also draining out the bottom of the vehicle. Additionally, the metal studs securing the filter are painted, making removal of the filter difficult without breaking the studs. No warning lamps or messages.
Suspension
On 10/5/22, my wife was driving her 2010 GLK 350 to work, suddenly she felt the break pedal was going deep inside easily and noticed break fluid light warning sign in dashboard. She was scared to drive and slowly drove car to Mercedes authorized technician. After diagnosis, MB technician said the issue in not just on break fluid leaks but the entire breaking system is failing due to rear subframe rust which holds the entire suspension and body. He said car is not safe to drive will cost $4K to $10k to repair. Called another dealer near by said the same as this is common issue with Mercedes due to snow the subframe rust during winter. It is ironic that even with frequent servicing with dealer they never found these rust issue early because rusting process started early on any metals. …
Subframe of the car rusted and rotted from inside out. to the point of rear suspension completely detached from subframe. it caused my car to fish tail and lose control under even slow breaking conditions. once we discovered the problem we were told the car was a death trap and was absolutely unsafe to operate. we found out this is a common problem for this MB model type. the problem was already under recall in Europe. there are thousands of existing owner complains about the exact same issue. MB USA initially refused to acknowledge the problem, but on 2/14/2023 they sent a memo to all US dealers to repair rotted subframe for free under "extended warrantee". however, they refused to pay for the full repair even after dealership specifically informed them that it was not possible to complete the repair without replacing thrust arm and rod, which were damaged due to the Subframe failure. …
2010 Mercedes-Benz GLK350 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.5L 6-cyl | 7-speed automatic | RWD | 16 / 22 / 18 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2010 Mercedes-Benz GLK350 a good car?
Based on 241 owner complaints filed with NHTSA, the 2010 GLK350 rates use caution: 1.8× as many complaints as a typical year of the GLK350 at the same age. It is one of the GLK350 years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2010 Mercedes-Benz GLK350?
The air bags — 149 complaints, 62% of all complaints for this model year. Next are the fuel & propulsion system (30) and suspension (14).
How many recalls does the 2010 Mercedes-Benz GLK350 have?
There are 5 recalls for the 2010 Mercedes-Benz GLK350, the most recent from January 9, 2019 (inflator module). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Mercedes-Benz GLK350?
The best years by complaints, compared at the same age, are 2007 and 2014. Years to avoid or approach with caution: 2010. See the full Mercedes-Benz GLK350 years comparison.
At what mileage do 2010 Mercedes-Benz GLK350 problems happen?
The median mileage reported in complaints is about 71,000 miles; 30% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.