🏷️ Basic Information

Make:

Mercedes-Benz

Model:

GLK-Class

Chassis Code:

X204

Model Year:

2009

Internal Model Code:

X204

👋 Introduction

Positioning:

Compact luxury SUV positioned as a more affordable entry into the Mercedes-Benz SUV lineup, competing with vehicles like the BMW X3 and Audi Q5.

Competitors:

BMW X3, Audi Q5, Lexus RX, Acura RDX.

Distinctive Aspects:

Boxy, upright styling, robust build quality, strong Mercedes-Benz brand image, available 4MATIC all-wheel drive.

Buyer Profile:

Individuals seeking a premium compact SUV with a balance of luxury, practicality, and off-road capability (for its class).

Purpose:

To provide comprehensive, factory-level repair and maintenance information for the 2009 Mercedes-Benz GLK-Class X204.

📋 Manual Details

General Coverage:

All repair, servicing, and troubleshooting procedures for the Mercedes-Benz GLK-Class X204 2009 model.

Estimated Pages:

Hundreds of pages (specific number not provided in product info, but description implies substantial volume).

Type:

Factory Service Repair Workshop Manual

Language:

English (Assumed based on product description and typical market)

Format:

PDF Download

📖 Manual Coverage

Powertrain:

Engine mechanical, engine electrical, fuel system, exhaust system, ignition system, emissions control.

Drivetrain:

Transmission (automatic/manual), transfer case (if applicable), drive shafts, axles, differential, AWD system.

Chassis:

Suspension (front and rear), steering system, braking system (ABS, ESP), wheels and tires.

Electrical:

Body control module (BCM), lighting, power windows, locks, mirrors, seats, wipers, horns, audio system, navigation, instrument cluster, diagnostic connector (OBD-II).

Body And Interior:

Body panels, doors, hood, trunk lid, bumpers, interior trim, seating, HVAC system.

Safety Systems:

Airbag system (SRS), seatbelt pre-tensioners, advanced driver-assistance systems (ADAS) if equipped.

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt replacement.

Troubleshooting:

Diagnostic procedures, symptom-based troubleshooting, wiring diagrams, fault code interpretation.

Repair:

Component removal and installation, system overhauls, component-level repairs, bodywork repair.

Diagnostics:

Electrical diagnostics, mechanical diagnostics, use of diagnostic scan tools.

Specifications:

Torque specifications, clearances, fluid capacities, electrical component specifications.

Depth:

Comprehensive, covering all repair and servicing tasks from basic maintenance to major component overhauls. Includes detailed diagrams and step-by-step instructions as used by professional mechanics.

📊 Manual Specifications

File Type:

PDF

Searchability:

Likely searchable text within the PDF for efficient information retrieval.

Print Capability:

Printable (single pages or entire manual).

Image Quality:

Detailed photos & diagrams (high quality expected for professional use).

Binding:

Digital (No physical binding).

Paper:

N/A (Digital format).

Operating Systems:

Compatible with all Windows & MAC computers.

Usage License:

Lifetime use, no expiry, usable on multiple devices.

Version Limitations:

Full manual, no trial or limited version.

⚙️ Engine Specifications

Engine Code And Type:

Likely M272 (3.0L V6) or M276 (3.5L V6) for gasoline variants. Diesel options may include OM642 (3.0L V6 CDI). Specific engine for 2009 model year needs confirmation from manual content.

Displacement:

Common displacements for this era include 2.8L, 3.0L, and 3.5L for gasoline, and 2.1L or 3.0L for diesel. Precise details depend on the specific engine variants covered.

Horsepower Range:

Typically ranges from 200 hp to 270 hp for gasoline engines, and 170 hp to 224 hp for diesel engines.

Torque Range:

Torque figures vary significantly by engine type. Expect around 200-270 lb-ft for gasoline and 295-398 lb-ft for diesel.

Fuel Delivery:

Likely multi-point fuel injection (MPI) or direct injection (DI) depending on engine and market. Diesel variants will feature common rail direct injection (CDI).

Fuel Type:

Unleaded gasoline or Diesel (depending on variant).

Timing Mechanism:

Most V6 engines from this period feature a timing chain, which generally requires no scheduled replacement but needs regular inspection.

Engine Management:

Advanced electronic engine control units (ECU) with CAN bus communication for diagnostics and system management.

🔧 Transmission

Transmission Type Standard:

Likely a 7-speed automatic transmission (7G-TRONIC PLUS).

Transmission Type Optional:

A 6-speed manual transmission might have been available in select markets or for specific engine variants, though automatic was more common.

Drivetrain Configuration:

Available in Rear-Wheel Drive (RWD) or 4MATIC All-Wheel Drive (AWD).

Fluid Type Automatic:

Mercedes-Benz MB 236.14 (or equivalent specified in manual).

Fluid Type Manual:

GL 4/5 specification gear oil (or equivalent specified in manual).

📐 Dimensions

Length:

Approx. 4575 mm (180.1 in).

Width:

Approx. 1830 mm (72.0 in).

Height:

Approx. 1670 mm (65.7 in).

Curb Weight:

Varies by engine and drivetrain, typically 1750-1850 kg (3858-4079 lbs).

Towing Capacity:

Typically rated up to 2000 kg (4409 lbs) with a trailer hitch.

🛡️ Safety Features

NHTSA Rating:

Likely received 4 or 5-star ratings in frontal and side impact tests, typical for Mercedes-Benz vehicles of this era. Specific ratings to be confirmed by manual or official sources.

IIHS Rating:

Likely achieved 'Good' ratings in IIHS crashworthiness tests. Specific ratings to be confirmed.

Driver Assistance:

Standard features likely include ABS, Traction Control (ASR), Electronic Stability Program (ESP), Brake Assist (BAS). Optional features may include Blind Spot Assist, Lane Keeping Assist, Adaptive Cruise Control (Distronic Plus).

Airbags:

Front airbags, side airbags (front), window airbags, driver knee airbag.

Seatbelts:

3-point inertia-reel seatbelts with front seatbelt force limiters and pre-tensioners.

Body Structure:

High-strength steel safety cell with crumple zones.

💡 Technology Features

Infotainment System:

COMAND (Cockpit Management and Navigation) system with a central display, radio, CD player, optional navigation, and Bluetooth connectivity.

Audio System:

Standard 6-speaker or optional Harman Kardon surround sound system.

Adas Features:

Optional features available such as DISTRONIC PLUS (adaptive cruise control), PARKTRONIC (parking sensors), and a rear-view camera.

Bluetooth Integration:

Bluetooth hands-free calling and audio streaming.

Keyless Go:

Optional keyless entry and start functionality.

Memory Seats:

Power-adjustable front seats with memory function for driver and front passenger.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 miles or 12 months, whichever comes first, or based on the 'Active Service System' (ASSYST) variable maintenance reminder.

Major Service Interval:

Major services (e.g., spark plugs, transmission fluid) are scheduled at higher mileage intervals, such as 40,000-60,000 miles or as indicated by ASSYST. Manual will provide exact intervals.

Engine Oil Type:

Mercedes-Benz MB-Approval 229.5 or 229.51 (for vehicles with Diesel Particulate Filter) - SAE 0W-30 or 5W-30 viscosity.

Coolant Type:

Mercedes-Benz approved G48 (Antifreeze Protection) coolant or equivalent.

Brake Fluid Type:

DOT 4 (MB-Approval 331.0).

Common Problems M272 V6:

Timing chain tensioner wear (can lead to chain stretching and potential failure), intake manifold flap issues, oil cooler seal leaks, balance shaft gear wear on early M272 engines (less common on later revisions).

Common Problems Diesel Om642:

Intake manifold runner control (M-ുന്നത്), glow plug issues, NOx sensor failures, turbocharger actuator problems, and EGR cooler leaks.

Common Problems Electronics:

Seat occupancy sensor issues (leading to airbag warning lights), COMAND system glitches, and various module failures.

Common Problems Suspension Steering:

Worn control arm bushings, steering rack leaks.

📚 Vehicle History

Mercedes Benz Legacy:

Over a century of automotive innovation and luxury vehicle production, known for engineering excellence and safety.

Glk Class Introduction:

The X204 GLK-Class was introduced in 2008 as a compact SUV, notable for its distinctive, angular styling contrasting with the more rounded SUVs of the time.

First Generation X204:

The 2009 model year represents the initial rollout of the X204 generation, establishing its place in the premium compact SUV segment.

Manufacturing Location:

Primarily manufactured in Bremen, Germany.

Market Reception Early:

Received mixed reviews initially for its polarizing design, but appreciated for its Mercedes-Benz refinement and capability.

🏆 Awards & Recognition

Safety Awards:

Likely recognized for its safety performance by various automotive safety organizations, as is typical for Mercedes-Benz vehicles. Specific awards for the 2009 GLK need detailed research.

Reliability Ratings:

Reliability ratings for early X204 models can vary; adherence to the maintenance schedule detailed in this manual is crucial for long-term reliability.

Emissions Certifications:

Compliant with relevant emissions standards for the 2009 model year (e.g., EPA, Euro 4/5).