Tl* the contact owns a 2015 Mercedes benz glk250. While driving at an unknown speed, the engine warning light illuminated. The failure recurred several times. The vehicle was taken to the dealer three times. The technician was unable to duplicate or diagnose the failure. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 500.
2015 Mercedes-Benz GLK-Class engine problems
moderate Owners of the 2015 Mercedes-Benz GLK-Class have filed 3 NHTSA complaints about the engine at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
Complaints
3
Recalls
0
Avg fix
$3,100
| Model year | engine complaints |
|---|---|
| 2011 GLK-Class | 4 |
| 2013 GLK-Class | 3 |
| 2015 GLK-Class (this page) | 3 |
What stands out
No new NHTSA engine complaint has been filed on this vehicle in over 10 years — the issue may be aging out of the active population.
What owners are reporting 1 most recent
Had engine trouble with your 2015 Mercedes-Benz GLK-Class?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2015 Mercedes-Benz GLK-Class?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Based on the 3 complaints filed, engine issues most often appear around 16,250 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2015/Mercedes-Benz/GLK-Class.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.