This comprehensive 2012 Mercedes GLK-Class (X204) Service and Repair Manual provides detailed instructions, diagrams, and specifications for maintaining, servicing, diagnosing, and repairing your vehicle. It covers all models and all repair procedures, offering the same information used by technicians at Mercedes dealerships. The manual offers complete step-by-step instructions, accompanied by clear diagrams and illustrations, to guide you through every repair process. You'll find detailed wiring schematics to help you understand the electrical system, and precise specifications to ensure accuracy in your repairs. The manual covers all aspects of your GLK-Class, including: * **Maintenance:** Routine maintenance procedures, schedules, and tips. * **Engine:** Detailed information on engine components, operation, troubleshooting, and repair. * **Control System:** In-depth coverage of the engine control system, including diagnostics and repair. * **Mechanical Systems:** Comprehensive repair instructions for all mechanical systems, including the transmission, drive shaft, suspension, and brakes. * **Fuel Service Specifications:** Detailed information on fuel system components, maintenance, and repair. * **Emission Control:** Guidance on emission control systems, diagnostics, and repair. * **Intake, Exhaust, and Cooling:** Complete coverage of the intake, exhaust, and cooling systems. * **Lube Systems:** Comprehensive information on lubrication systems, including oil changes and filter replacements. * **Ignition, Starting, and Charging:** Detailed instructions for troubleshooting and repairing ignition, starting, and charging systems. * **Automatic and Manual Transmission:** Comprehensive repair information for both automatic and manual transmissions. * **Transfer Case, Propeller Shaft, and Drive Shaft:** Detailed instructions for repairing these components. * **Differential and Axle:** Thorough coverage of differential and axle systems, including repair procedures. * **Suspension:** Complete information on suspension components, diagnostics, and repairs. * **Tires and Wheels:** Guidance on tire and wheel maintenance and repair. * **Brake System:** Comprehensive instructions for repairing the brake system, including disc brakes, drum brakes, and parking brake. * **Steering System:** Detailed information on steering system components, diagnostics, and repair procedures. * **Air Conditioning:** Complete coverage of the air conditioning system, including repair procedures. * **Supplemental Restraint System (SRS):** Information on the SRS system, including diagnostics and repair. * **Seat Belts:** Instructions for inspecting and repairing seat belts. * **Engine Immobilizer:** Detailed information on the engine immobilizer system. * **Cruise Control:** Comprehensive coverage of the cruise control system. * **Wiper and Washer:** Instructions for repairing the wiper and washer system. * **Door Locks:** Detailed information on door lock mechanisms and repairs. * **Meter, Audio/Visual, and Horn:** Complete coverage of these systems, including repair procedures. * **Windshield, Glass, and Mirrors:** Guidance on replacing and repairing these components. * **Instrument Panel:** Detailed information on the instrument panel, including repair procedures. * **Seats:** Comprehensive coverage of seat components and repair procedures. * **Engine Hood and Doors:** Instructions for repairing the engine hood and doors. * **Exterior and Interior:** Detailed information on exterior and interior components, including repair procedures. * **Electrical System:** Complete coverage of the electrical system, including diagnostics and repair. * **Multiplex/CAN Communication:** Information on the multiplex/CAN communication system. This manual is designed to empower you to perform repairs and maintenance on your Mercedes GLK-Class with confidence.

The 2012 Mercedes-Benz GLK-Class (X204) was a compact luxury crossover SUV that marked a significant shift in Mercedes-Benz's strategy towards smaller, more fuel-efficient vehicles. Introduced in 2009, the GLK-Class aimed to capture a younger, more active audience while maintaining the brand's renowned luxury and performance standards. Its design, which drew inspiration from the iconic G-Class, featured a boxy appearance with angular lines and a distinctive grille. The GLK-Class offered a range of powerful and efficient engines, including a 3.5-liter V6 and a 3.0-liter V6 diesel, coupled with either a 7-speed automatic transmission or a 6-speed manual transmission delivering smooth and responsive acceleration. Inside, the GLK-Class showcased Mercedes-Benz's commitment to luxury and comfort with high-quality materials, a well-appointed dashboard, and a spacious cabin. Standard features included a premium sound system, dual-zone climate control, and a host of safety features. The GLK-Class also offered advanced options like a panoramic sunroof, navigation system, and a rearview camera. The 2012 model year brought several refinements to the GLK-Class. Notable upgrades included a revised front grille, LED taillights, and updated interior trim options. Mercedes-Benz also introduced a new GLK350 4MATIC BlueEFFICIENCY model, which boasted improved fuel economy through a combination of engine efficiency enhancements and aerodynamic improvements. The GLK-Class's compact size and agile handling made it a capable performer both on and off the road. The standard 4MATIC all-wheel drive system provided superior traction and stability, while the optional off-road package further enhanced its capabilities with upgraded suspension and tires. The GLK-Class's combination of style, performance, safety, and practicality solidified its position as a leading contender in the fiercely competitive luxury crossover segment, catering to drivers seeking a blend of sophistication and versatility. The 2012 Mercedes-Benz GLK-Class (X204) cemented its reputation as a stylish and capable compact luxury crossover that offered a compelling balance of performance, comfort, and practicality.