Mercedes SLC Class R172 Workshop Manual Software (2015–2020)

Description

Factory Mercedes SLC Class R172 Workshop Manual (2015–2020)

This is the same dealer-level workshop software used by authorized Mercedes-Benz service centers — now available for direct download for US-based owners and independent technicians working on the R172 SLC Class roadster.

Powertrain & Drive Coverage

Component	Variants Covered
Petrol	M274 1.6L turbo (SLC 180), M274 2.0L turbo (SLC 200, SLC 250, SLC 300), M276 3.0L V6 twin-turbo (AMG SLC 43)
Diesel	N/A
Transmissions	6-speed manual, 9G-TRONIC 9-speed automatic
Drive	RWD
Model Years	2015–2020
Badge Twins	Mercedes-Benz SLK Class R172 (pre-2016 facelift/rebrand)

Common SLC Class Repairs Covered

System	Procedures
M274 Timing Chain	Timing chain tensioner inspection, guide rail replacement, chain stretch diagnosis — a known concern on high-mileage M274 units
Retractable Hardtop (VARIO roof)	Hydraulic pump inspection, latch mechanism adjustment, microswitch diagnostics and recalibration
9G-TRONIC Transmission	Fluid and filter service, valve body removal, TCU adaptation reset procedures
AIRSCARF Neck Heating	Blower motor replacement, ducting inspection, electrical fault tracing for inoperative AIRSCARF units

Format & Delivery

Dealer software (not a PDF). Runs natively on Windows 7/8/10/11; compatible with Mac via Boot Camp or Parallels, and Linux via Wine or VirtualBox. Instant download; lifetime re-downloads.

Frequently Asked Questions

Does the M274 engine in the SLC have timing chain problems?

The M274 four-cylinder fitted to SLC 180, 200, 250, and 300 models has a documented history of timing chain tensioner wear, particularly beyond 60,000 miles. This software includes full Mercedes factory procedures for tensioner inspection, guide rail assessment, and chain replacement — with correct torque values and special tool references.

Is the R172 SLC the same as the older SLK?

Yes. Mercedes-Benz rebranded the SLK Class as the SLC Class for the 2016 model year as part of a mid-cycle refresh of the R172 platform. The underlying chassis, powertrains, and VARIO retractable hardtop architecture carried over. This manual covers both the pre-facelift SLK R172 (from 2015) and the SLC badged variants through 2020.

Are wiring diagrams and CANBUS schematics included?

Yes. The software provides complete electrical documentation including CANBUS network topology, ECU pinout charts, fuse and relay box layouts, ground point locations, and full wiring diagrams for systems such as COMAND infotainment, dynamic LED headlights, AIRSCARF, and all airbag/SRS circuits.

What format is the manual?

This is dealer-level workshop software, not a PDF. After downloading and extracting the installer, you run an interactive program with searchable repair procedures, zoomable diagrams, and clickable schematics — the same interface used at Mercedes-Benz dealerships. Windows is the primary platform; Mac and Linux users can run it through virtualization software.