🏷️ Basic Information

Make:

Mercedes-Benz

Model:

GLK-Class

Chassis Code:

X204

Model Year:

2015

Generation Code:

X204 (Second Generation Facelift)

👋 Introduction

Segment:

Compact Luxury SUV

Key Competitors:

BMW X1, Audi Q3, Acura RDX, Lexus NX, Volvo XC60

Design Philosophy:

Off-road capability with on-road comfort, boxy yet athletic styling

Target Audience:

Young professionals, families seeking a premium compact SUV experience

📋 Manual Details

Primary Coverage:

North America (US/Canada specific if available, otherwise global)

Vehicle Variants Covered:

All gasoline and diesel engine variants, all trim levels

Estimated Page Count:

Hundreds (exact number not specified, but described as 'hundreds of pages')

Type:

Factory Service Repair Workshop Manual (FSM)

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Powertrain:

Engine (mechanical, lubrication, cooling, fuel, ignition, exhaust), Transmission (automatic), Drivetrain (4MATIC all-wheel drive)

Chassis:

Suspension (front and rear), Steering, Brakes (hydraulic, ABS, ESP), Wheels and Tires

Electrical:

Engine control module (ECM), Transmission control module (TCM), Body control module (BCM), Lighting systems, Instrumentation, HVAC controls, Infotainment, Power accessories, SRS (Airbag) system

Body:

Exterior body panels, Doors, Hood, Liftgate, Bumpers, Interior trim, Glass and seals

Maintenance:

Scheduled maintenance (oil changes, filter replacements, fluid checks), Inspections, Lubrication

Repair:

Component removal and installation, Adjustments, Diagnostics and troubleshooting, Overhaul procedures

Troubleshooting:

Diagnostic trouble codes (DTCs), Symptom-based troubleshooting, Electrical schematics interpretation

Diagnostics:

OBD-II diagnostics, sensor testing, component actuations, troubleshooting flowcharts

Depth:

Comprehensive (from basic maintenance to complete engine and transmission rebuilds, advanced diagnostics)

Wiring Diagrams:

Inclusion of detailed electrical wiring diagrams for all systems

Special Tools:

Identification and usage of Mercedes-Benz specialized tools required for certain repairs

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Searchability:

Likely searchable text, though not explicitly stated, typical of factory manuals

Printable:

Yes, individual pages or the entire manual

Binding:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Usage Rights:

Unlimited use on multiple devices, no expiry

Operating Systems:

Windows and macOS

⚙️ Engine Specifications

Engine Code Gasoline:

M272 (3.0L V6) or M276 (3.5L V6) depending on market/trim; likely M276 DE35 for 2015

Engine Code Diesel:

OM651 (2.1L I4 Turbo Diesel) - GLK250 Bluetec

Displacement Gasoline 3.5L:

3498 cc

Horsepower Gasoline 3.5L:

Approx. 302 hp @ 6500 rpm (GLK350)

Torque Gasoline 3.5L:

Approx. 273 lb-ft @ 3500 rpm (GLK350)

Displacement Diesel 2.1L:

2143 cc

Horsepower Diesel 2.1L:

Approx. 200 hp @ 3800 rpm (GLK250 Bluetec)

Torque Diesel 2.1L:

Approx. 369 lb-ft @ 1600-1800 rpm (GLK250 Bluetec)

Fuel Delivery Gasoline:

Direct Injection (DGI) / Fuel Stratified Injection (FSI)

Fuel Type Gasoline:

Premium Unleaded (91 octane recommended)

Fuel Type Diesel:

Diesel Fuel (ULSD)

Induction Gasoline:

Naturally Aspirated (3.5L V6)

Induction Diesel:

Turbocharged (Common Rail Direct Injection)

Emissions System Diesel:

BlueTEC (SCR system with AdBlue)

🔧 Transmission

Type Standard:

7G-TRONIC PLUS 7-Speed Automatic

Drive System Standard:

4MATIC All-Wheel Drive

Type Optional:

RWD (Rear-Wheel Drive) available on select models/markets

Transmission Modes:

Comfort (C) and Sport (S)

Transmission Fluid Type:

MB Specification 236.14 (ATF)

📐 Dimensions

Length:

Approx. 4575 mm (179.9 in)

Width:

Approx. 1815 mm (71.5 in)

Height:

Approx. 1680 mm (66.1 in)

Wheelbase:

Approx. 2755 mm (108.5 in)

Cargo Volume Seats Up:

Approx. 450-480 liters (15.9-16.9 cu ft)

Cargo Volume Seats Down:

Approx. 1550 liters (54.7 cu ft)

Curb Weight Glk350 4Matic:

Approx. 1840 kg (4057 lbs)

Curb Weight Glk250 Bluetec 4Matic:

Approx. 1880 kg (4145 lbs)

🛡️ Safety Features

NHTSA Overall Rating:

Likely 5-Star (check specific model year reports)

IIHS Top Safety Pick:

Likely Top Safety Pick or Top Safety Pick+ (check specific model year reports)

Brake Assist System:

BAS (Brake Assist System)

Electronic Stability Control:

ESP (Electronic Stability Program)

Traction Control System:

ASR (Acceleration Skid Control)

Airbags Standard:

Front airbags, front side airbags, front side window airbags

Airbags Optional:

Rear side airbags, driver knee airbag (depending on package/market)

Forward Collision Warning:

Optional (COLLISION PREVENTION ASSIST)

Lane Keeping Assist:

Optional (Lane Keeping Assist)

Blind Spot Monitoring:

Optional (BLIND SPOT ASSIST)

💡 Technology Features

Infotainment System:

COMAND APS (optional), Audio 20 (standard)

Display Size:

7-inch color display

Connectivity Options:

Bluetooth, USB, SD card slot, optional Becker MAP PILOT navigation

Parking Assistance:

PARKTRONIC parking sensors, optional rearview camera, optional Active Parking Assist (self-parking)

Cruise Control:

Standard cruise control, optional DISTRONIC PLUS adaptive cruise control

Smartphone Integration:

Limited native integration in 2015; relies on Bluetooth and basic app integration via COMAND

🔧 Maintenance

Oil Change Interval Gasoline:

Typically every 10,000 miles or 12 months, whichever comes first (based on Mercedes-Benz Flexible Service System)

Oil Change Interval Diesel:

Typically every 10,000 miles or 12 months, whichever comes first (based on Mercedes-Benz Flexible Service System)

Major Service Interval:

Service B (typically around 20,000 miles or 24 months), Service A (around 10,000 miles or 12 months), specific checks at 40,000 and 80,000 miles, transmission service fluid change usually around 60,000 miles

Engine Oil Type Gasoline:

MB Specification 229.5 (e.g., Mobil 1 ESP Formula 0W-40 or similar synthetic)

Engine Oil Capacity 3.5L V6:

Approx. 6.5 liters (6.9 US quarts)

Engine Oil Type Diesel:

MB Specification 229.51 or 229.52 (low SAPS synthetic, e.g., Mobil 1 ESP Formula 5W-30)

Engine Oil Capacity 2.1L I4 Diesel:

Approx. 6.5 liters (6.9 US quarts)

Coolant Type:

MB Specification 325.0 (Antifreeze, blue)

Brake Fluid Type:

DOT 4 Plus (MB Specification 331.0)

Common Issues General:

PCV valve failure, oil leaks from valve covers or oil cooler seals, timing chain issues on earlier M272 engines (less common on facelifted M276), diesel particulate filter (DPF) issues on GLK250 Bluetec if driven primarily short distances, electronic module failures (e.g., SAM unit)

Common Issues Specific:

Power steering fluid leaks, squeaky suspension components, CUE module issues (rare for this year but can occur)

📚 Vehicle History

Brand Focus:

Luxury vehicles, engineering excellence, innovation

Introduction Year Glk:

2008 (for the first generation X204)

Facelift Year:

2012 (for the 2013 model year) - this 2015 manual covers the facelifted version

Discontinuation Year Glk:

2015 (in North America, replaced by the GLC-Class X253)

Assembly Location:

Bremen, Germany

🏆 Awards & Recognition

IIHS Awards:

Likely received IIHS Top Safety Pick ratings in its class and model year

Kbb Consumer Ratings:

Generally good consumer ratings for luxury, comfort, and performance, with some noted concerns about interior space and technology interface compared to newer competitors.