Description
Factory Mercedes GLC Class GLC300d Workshop Manual (2020-2022)
This is the same dealer-grade repair system used by Mercedes-Benz authorized service centers across the US, covering every GLC300d variant built between 2020 and 2022 — from routine maintenance to complex diagnostic procedures.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | N/A |
| Diesel | OM654 2.0L 4-cyl turbodiesel (~245 hp / 500 Nm), with AdBlue SCR emission system |
| Transmissions | 9G-TRONIC 9-speed automatic |
| Drive | 4MATIC all-wheel drive |
| Model Years | 2020, 2021, 2022 |
| Badge Twins | X253 (SUV), C253 (Coupe) |
Common GLC300d Repairs Covered
| System | Procedures |
|---|---|
| AdBlue / SCR System | NOx sensor replacement, AdBlue injector service, SCR catalyst fault diagnosis |
| 9G-TRONIC Transmission | Mechatronic unit diagnostics, fluid and filter service, valve body repair |
| OM654 Engine | Timing chain inspection, EGR valve cleaning, injector removal and installation torque specs |
| ADAS & Electrical | Radar module calibration, MBUX wiring diagrams, LED lighting circuit fault finding |
Format & Delivery
Dealer software (interactive OEM system with searchable database, exploded diagrams, and integrated torque/fluid lookups). Instant download; lifetime re-downloads.
Frequently Asked Questions
Does the GLC300d manual cover both the SUV and Coupe body styles?
Yes. Both the X253 platform (standard SUV) and the C253 platform (Coupe) are fully covered across the 2020-2022 production run, including all GLC300d trim levels such as base, AMG Line, and Exclusive variants.
Is the OM654 diesel engine covered in full, including emission controls?
Absolutely. The OM654 2.0L turbodiesel section includes complete fuel injection system data, turbocharger service procedures, EGR system maintenance, and full AdBlue SCR emission system repair steps — including NOx sensor and injector replacement.
Are wiring diagrams included for the MBUX infotainment and ADAS systems?
Yes. The electrical coverage includes full circuit diagrams for the MBUX system, radar and camera-based driver assistance modules, comfort electronics, climate control, and body control units — complete with connector pinouts and wire color references.
What format is the manual?
This product is dealer-level interactive software, not a static PDF. It runs on Windows and provides the same diagnostic and repair environment used by authorized Mercedes-Benz workshops, with searchable content, component locators, and guided repair workflows.
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