Description
Factory Mercedes GLC Class GLC300 4MATIC Workshop Manual (2016–2022)
This factory-level workshop manual delivers complete service and repair coverage for the Mercedes-Benz GLC300 4MATIC — the best-selling luxury compact SUV in the US market. Whether you’re tackling routine maintenance or major drivetrain work, this manual provides the OEM procedures, torque specs, and wiring diagrams your shop needs.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | 2.0L M270/M274 turbocharged four-cylinder; 2.0L M264 mild-hybrid turbocharged four-cylinder |
| Diesel | N/A |
| Transmissions | 9G-TRONIC 9-speed automatic |
| Drive | 4MATIC AWD |
| Model Years | 2016, 2017, 2018, 2019, 2020, 2021, 2022 |
| Badge Twins | N/A |
Common GLC300 Repairs Covered
| System | Procedures |
|---|---|
| Engine Oil Consumption (M264/M274) | Piston ring inspection, breather valve replacement, oil consumption test protocol per Mercedes TSB |
| 9G-TRONIC Transmission | Fluid and filter service, valve body removal, conductor plate replacement, shift quality adaptation reset |
| Turbocharger & Intercooler | Boost leak diagnosis, intercooler hose inspection, turbo oil feed line replacement |
| Air Suspension / Ride Control | AIRMATIC strut replacement, ride height sensor calibration, compressor unit testing and replacement |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Does this manual cover both the pre-facelift and post-facelift GLC300?
Yes. The manual spans the full 2016–2022 production run on the X253 (SUV) and C253 (Coupe) chassis, covering both the pre-facelift models (2016–2019) and the mid-cycle refresh variants (2020–2022) including the updated M264 mild-hybrid engine introduced for the facelift.
Are both the X253 SUV and C253 Coupe body styles included?
Yes. X253 chassis documentation covers the standard GLC300 4MATIC SUV, while C253 content addresses the GLC300 4MATIC Coupe with its unique roofline, rear body panels, and suspension geometry differences. Powertrain and drivetrain procedures are shared across both body styles.
Does the manual include wiring diagrams for MBUX / COMAND systems?
Complete electrical schematics are included, covering the COMAND infotainment system (pre-facelift) as well as MBUX-equipped post-facelift units. Diagrams detail connector pinouts, wire color codes, ground locations, and ADAS component circuits such as the radar-based collision prevention system.
What format is the manual?
The manual is delivered as a PDF file, compatible with Windows, Mac, Linux, iOS, and Android devices. Full-text search lets you locate any procedure or torque value instantly, and individual pages can be printed for bench use.
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