2015 Mercedes-Benz GLK-Class problems
The 2015 Mercedes-Benz GLK-Class has 133 NHTSA owner complaints and no active recalls. Here's where owners say it breaks.
The 2015 Mercedes-Benz GLK-Class has 133 NHTSA owner complaints on file (U.S. federal records, as of July 2026). The most-reported system is airbags at 90 complaints, typically surfacing around 45,350 miles (~$1,100 to repair). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2012 GLK-Class | 171 | 0 |
| 2013 GLK-Class | 145 | 0 |
| 2014 GLK-Class | 125 | 0 |
| 2015 GLK-Class (this page) | 133 | 0 |
Solid reliability overall. Common issues are concentrated in a few systems.
Worth owning if you verify the specific issues below before you buy.
- Reliability score 7.6/10 — above the segment average
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
Buying a used 2015 Mercedes-Benz GLK-Class? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or make the seller fix it before you sign.
What to inspect on this specific car
- airbags — 90 owner reports · tends to show around 45,350 mi · ~$1,100 to fix
- steering — 7 owner reports · tends to show around 2,500 mi · ~$700 to fix
- electrical — 6 owner reports · tends to show around 56,100 mi · ~$850 to fix
- powertrain — 6 owner reports · tends to show around 81,225 mi · ~$2,500 to fix
⚠ The one to take seriously: steering is flagged severe on this model , showing up around 2,500 mi. Inspect it closely on a test drive.
Recalls to confirm are done
Run the VIN from the listing — no active recalls on this model right now, but confirm none were opened after this car was built.
Verdict for buyers: 7.6/10 model. The priciest documented failure is engine (~$3,100) — get the seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report tells you what this exact car has been through. Smart buyers get both.
See the full pre-purchase inspection checklist →Ask anything about your 2015 Mercedes-Benz GLK-Class
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in this vehicle's actual NHTSA record, not generic advice.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
Top trouble spots 6 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
Tl* the contact owns a 2015 Mercedes-benz glk350. The contact stated that NHTSA campaign number: 19v010000 (air bags) exceeded a reasonable amount of time for repair. The contact did not receive a recall notification from the manufacturer. The contact spoke with arrowhead…
Tacata airbag is not repaired jet ## VIN passed ## Mercedes-benz 2015glk3504matic ##
Vehilce takada air bags recalled but vehicle manufacture states they do not have parts. It has been over 6 months and I feel the vehile is not safe to drive. Mercedes benz seems not to care. My other cars was fixed years ago with the same issue.
My passenger seat airbag has been recalled, I originally received a letter informing me of this recall in january 2019. It has been almost a year from receiving this letter and the parts have not been distributed for replacement. I am pregnant and due in january and the last…
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Common questions
Is the 2015 Mercedes-Benz GLK-Class reliable?
Mostly yes. With a reliability score of 7.6 out of 10 based on 133 owner complaints filed with NHTSA, the 2015 Mercedes-Benz GLK-Class is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Should you avoid the 2015 Mercedes-Benz GLK-Class?
The 2015 Mercedes-Benz GLK-Class is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Reliability score 7.6/10 — above the segment average. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2015 Mercedes-Benz GLK-Class?
Inspect the airbags first — it's the most-reported issue on this model, with 90 owner complaints filed. Typical failure occurs around 45,350 miles. Average repair cost runs about $1,100 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2015 Mercedes-Benz GLK-Class a good used car to buy?
It scores 7.6 out of 10 on our NHTSA-based read of 133 owner complaints. The main thing to watch is airbags. Typical failure occurs around 45,350 miles. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2015 Mercedes-Benz GLK-Class?
Based on NHTSA records, the most-reported issue is airbags, with 90 complaints filed. Typical failure occurs around 45,350 miles. Average repair cost runs about $1,100 at an independent shop.
What's the most expensive thing that goes wrong?
The electrical is one of the costlier repair items. Average repair cost runs about $850 at an independent shop. Typical failure occurs around 56,100 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Mercedes-Benz GLK-Class has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2015 Mercedes-Benz GLK-Class?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 133 complaints on file and the costliest repair averaging $850, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.