Mercedes GLK320 CDI 4Matic Workshop Manual (2008–2009)

Description

Factory Mercedes GLK320 CDI 4Matic Workshop Manual (2008–2009)

This official factory-level repair manual covers the Mercedes-Benz GLK320 CDI 4Matic on the X204 chassis — giving US technicians and DIY owners complete service data for this compact luxury SUV’s diesel powertrain and all-wheel-drive system.

Powertrain & Drive Coverage

Component	Variants Covered
Petrol	N/A
Diesel	OM642 3.0L V6 common-rail turbodiesel (~224 hp, 510 Nm)
Transmissions	7G-Tronic 7-speed automatic
Drive	4Matic permanent AWD
Model Years	2008–2009
Badge Twins	N/A

Common GLK320 CDI Repairs Covered

System	Procedures
OM642 Diesel Injector Seals	Injector sleeve replacement to address exhaust gas leaks — a known OM642 fault; torque specs and seal kit procedures included
7G-Tronic Valve Body	Conductor plate and solenoid inspection, fluid drain/fill specification, and shift-quality fault diagnosis
4Matic Transfer Case	Front differential and VG80 transfer unit service intervals, actuator testing, and AWD engagement troubleshooting
ESP / ABS Module	Wheel-speed sensor replacement, CAN-bus fault isolation, and brake pressure sensor calibration procedures

Format & Delivery

PDF. Instant download; lifetime re-downloads.

Frequently Asked Questions

What is the known injector issue on the OM642 diesel in the GLK320 CDI?

The OM642 V6 turbodiesel is prone to injector sleeve corrosion, which allows combustion gases to leak past the injector seating area. This manual includes the complete Mercedes factory procedure for removing injectors, inspecting and replacing the copper sleeves, and torquing injectors to spec — preventing head damage from repeat occurrences.

Is the GLK320 CDI related to any other Mercedes platform?

Yes. The GLK-Class rides on the X204 platform, which shares its architecture with the W204 C-Class. This means certain suspension geometry, steering components, and electrical modules are common across both nameplates, a detail reflected in the shared diagnostic procedures within this manual.

Does the manual include 4Matic AWD and 7G-Tronic transmission coverage?

Absolutely. Both the VG80 transfer unit for the 4Matic all-wheel-drive system and the 722.9-series 7G-Tronic automatic transmission are covered in full, including fluid specifications, valve body service, solenoid testing, and complete rebuild torque sequences.

What format is the manual?

This manual is delivered as a searchable PDF file, downloadable immediately after purchase. It is compatible with Windows and Mac computers, tablets, and smartphones. Individual pages or full sections can be printed for shop use, and zoom functionality keeps wiring diagrams and illustrations sharp at any magnification.