Mercedes-BenzModel report

Mercedes-Benz GLK350 Problems by Model Year

Shade compares each year’s NHTSA complaints with a typical Mercedes-Benz GLK350 year, allowing for the era and time on the road: darker means more. Unshaded years are too new, too old or have too few complaints to compare.

NHTSA recorded 901 consumer complaints across the 7 model years of the Mercedes-Benz GLK350 (2007–2015) that have at least 5 complaints. 2010 has the most, with 241. Across all years, the part named most often is air bags (620 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.

Best and worst GLK350 years →

All GLK350 model years

Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.

Year	Complaints	Median mi	Recalls	TSBs	Score (50 = typical)	Trend
2015	114	33,000	4	59	47 · Typical	Falling
2014	104	38,000	5	62	55 · Typical	Stable
2013	137	56,000	6	71	53 · Typical	Falling
2012	167	44,630	4	63	29 · Fewer	Rising
2011	133	65,786	4	62	26 · Fewer	Stable
2010	241	71,000	5	93	85 · More	Falling
2007	5	42,486	0	33	—	Not enough data

Parts named most often, all years

Counts add up complaint mentions across the listed years. A complaint can name several parts.

Air bags620 69%
Fuel system86 9.6%
Brakes37 4.1%
Electrical system35 3.9%
Steering34 3.8%
Other or unknown34 3.8%
Body and structure26 2.9%
Suspension25 2.8%

Example complaints

One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.

2015: “Driving 25 MPH around a curve when my car lost control, despite my best attempts my car would not allow me to take control or to break. My car went from 25 MPH to 60 MPH through a two lane traffic street, forcing me to swerve in and out of traffic merely missing six cars and a semi trailer truck, spinning my car around twice and facing the opposite direction of traffic.”

NHTSA complaint #11376095, filed 2020-11, 79,614 miles

2013: “I was notified in february of 2019 of an air bag recall for my glk 350. Almost a year later, mercedes dealer still cannot tell me when this will be fixed. I am driving around with a ticking time-bomb for an air bag and mercedes doesn't seem to care. This is unacceptable. Someone should be holding them accountable.”

NHTSA complaint #11301238, filed 2020-01, 40,350 miles

2012: “I was driving on i35 at the speed limit when I heard a loud pop overhead. I was not sure what it was, wondered if it was gun fire. A few days later when I got in my vehicle, and the sun was out, I was closing the sunroof cover when I noticed that the glass was shattered, pieces of glass were everwhere and began falling with the movement of the cover. It is extremely dangerous as shreds of glass are everywhere.”

NHTSA complaint #11390524, filed 2021-01, 90,000 miles

Other Mercedes-Benz models

Mercedes-Benz C300
3,965 complaints Mercedes-Benz E350
2,215 complaints Mercedes-Benz E320
1,164 complaints Mercedes-Benz ML350
952 complaints Mercedes-Benz ML320
740 complaints Mercedes-Benz C250
725 complaints Mercedes-Benz GLC 300
659 complaints Mercedes-Benz C230
653 complaints

All Mercedes-Benz models →

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology