Description
Factory Mercedes CLK240 Workshop Manual (2003-2005)
This factory-level service manual gives US technicians and home mechanics complete repair and maintenance coverage for the Mercedes-Benz CLK240 (W209 chassis), spanning the 2003 through 2005 model years in both coupe and cabriolet body styles.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | M112 E26 2.6L V6 (naturally aspirated, ~170 hp) |
| Diesel | N/A |
| Transmissions | 5-speed automatic, 6-speed manual |
| Drive | RWD |
| Model Years | 2003, 2004, 2005 |
| Badge Twins | N/A |
Common CLK240 Repairs Covered
| System | Procedures |
|---|---|
| M112 Balance Shaft & Oil Leaks | Balance shaft sprocket replacement, valve cover gasket and front crankshaft seal renewal |
| SBC / Brake System | Brake fluid flush intervals, caliper overhaul, brake pad and rotor replacement with torque specs |
| Cabriolet Convertible Top | Hydraulic pump diagnosis, folding roof mechanism adjustment, weatherstrip replacement |
| Electrical / Body Electronics | Central locking, power window regulator replacement, wiring diagram fault tracing for ESP and ABS modules |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
What is the known balance shaft issue on the M112 E26 engine, and is it covered?
The M112 2.6L V6 in the CLK240 can develop balance shaft sprocket wear leading to timing chain noise and oil leaks at the front seal. This manual includes full teardown and reassembly procedures for the balance shaft assembly, timing chain system, and associated seals, complete with factory torque values.
Does this manual cover both the coupe and the cabriolet (W209) body styles?
Yes. Both the hardtop coupe and the folding-roof cabriolet built on the W209 platform are fully addressed, including cabriolet-specific hydraulic roof system diagnostics, adjustment procedures, and weatherstrip installation.
Are wiring diagrams and ESP/ABS electrical schematics included?
Complete circuit diagrams are included for the engine management system, ABS, ESP, climate control, lighting, central locking, and power accessories. Each diagram details connector locations, wire colors, pin assignments, and ground points to support systematic electrical fault diagnosis.
What format is the manual?
The manual is delivered as a fully searchable PDF compatible with Windows, Mac, iOS, and Android devices. Individual pages or full sections can be printed directly from any PDF reader application.
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