2012 Mercedes-Benz GLK350 Service and Repair Manual

This factory service and repair manual for the 2012 Mercedes-Benz GLK350 addresses a 4-door sport utility sold in Base and 4Matic trims for the year. The single engine listed is a gasoline 3.5L V6 with double overhead camshafts and natural aspiration, shared by both trims. Technicians get procedures, specifications and torque values for that V6, along with wiring diagrams and diagnostics for the systems of the Base and 4Matic alike.

Engines covered

• 3.5L V6 — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sport utility

Trims covered

• Base
• 4Matic

Known issues on the 2012 GLK350. Four recalls name the 2012 GLK350. Certain vehicles built from April 18 through July 12, 2011 could develop a crack in the fuel filter flange, a molding irregularity that shows up in high heat, letting fuel escape where an outside ignition source could start a fire; dealers fit a new filter. On certain vehicles the driver's frontal inflator could rupture during deployment and send metal pieces toward occupants. Certain vehicles sold or ever registered in a listed set of states and territories got replacement passenger front air bag modules over a similar rupture danger. Of 168 complaints, 134 involve air bags, 12 the fuel/propulsion system and 6 the service brakes; 5 complaints reported a crash and 3 an injury. Fuel and restraint procedures, wiring diagrams and diagnostics are covered.