What are the most common Mercedes-Benz GLK-Class problems?
According to Au7o's analysis of 1,350+ owner reports, the 2011-2011 Mercedes-Benz GLK-Class has 3 documented issues. The most frequently reported are: Diesel Injector Leak and Black Death (OM651), Transfer Case Actuator Motor Failure (4MATIC), Front Suspension Strut Mount Noise and Wear. Of these, 1 is rated critical and should be addressed promptly.
Is the Mercedes-Benz GLK-Class reliable?
The 2011-2011 Mercedes-Benz GLK-Class has 3 known issues documented across 1,350+ owner reports. 1 issue is rated critical: Diesel Injector Leak and Black Death (OM651). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mercedes-Benz GLK-Class problems?
Repair costs for known Mercedes-Benz GLK-Class issues range from $400 to $2,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Diesel Injector Leak and Black Death (OM651), typically costs $400-$2,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2010-2015 Mercedes-Benz GLK-Class Diesel Injector Leak and Black Death (OM651)?
The OM651 diesel injectors in the GLK develop a condition known as "Black Death" where the copper injector sealing washers fail, allowing combustion gases to escape around the injector. The escaping gases carbonize and create hard black tar deposits around the injector bore, even… Repairs typically run $400-$2,000. Severity: high.
What is the 2010-2015 Mercedes-Benz GLK-Class Transfer Case Actuator Motor Failure (4MATIC)?
The 4MATIC all-wheel-drive transfer case actuator motor on the GLK-Class fails, causing the system to default to a fixed torque split or lose AWD functionality entirely. The actuator motor controls the variable torque distribution between front and rear axles, and its failure tri… Repairs typically run $600-$1,500. Severity: medium.
What is the 2010-2015 Mercedes-Benz GLK-Class Front Suspension Strut Mount Noise and Wear?
The front strut top mounts on the GLK-Class wear prematurely, producing a clunking or knocking noise over bumps and during low-speed turning. The rubber isolator within the mount hardens and cracks, transmitting road impacts directly into the body. This is especially noticeable o… Repairs typically run $400-$1,000. Severity: low.
