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Mercedes-Benz GLK350: problems, complaints, bulletins

Summary for the Mercedes-Benz GLK350 across 9 model years: 904 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.

Model years

YearOwner complaintsinvolving a crashTechnical service bulletins (TSB)YouTube repair videos
2015114400
2014104400
2013137500
2012167500
2011133400
20102411200
20081000
20075000
20062000

What fails most often

87654321
  1. 1 Air bags 69% of all complaints
  2. 2 Fuel/propulsion system 8% of all complaints
  3. 3 Electrical system 4% of all complaints
  4. 4 Service brakes 4% of all complaints
  5. 5 Steering 4% of all complaints
  6. 6 Structure 3% of all complaints
  7. 7 Suspension 3% of all complaints
  8. 8 Powertrain 2% of all complaints
Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Engines and transmissions

US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.

Drive: RWD, 4WD

Symptoms owners describe

How many of the 904 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

Components owners complain about

ComponentOwner complaintsinvolving a crashTechnical service bulletins (TSB)
Air bags620130
Fuel/propulsion system7220
Electrical system3640
Service brakes3680
Steering3430
Structure2760
Suspension2510
Powertrain2200
Vehicle speed control22120
Engine1900
Fuel system1710
Visibility1400
Seats1200
Wheels1010

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

What to check before buying

Other models of this make

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.