The Mercedes-Benz OM654.930 is a 1,950 cc, inline-four turbo-diesel engine produced between 2017 and 2022. It was engineered as part of the modular diesel engine family (MDE) for compact and mid-size platforms, featuring common-rail direct injection, variable geometry turbocharging (VGT), and dual overhead camshafts (DOHC). In standard output, it delivered 120 kW (163 PS) and 400 Nm of torque, with higher-output variants reaching 143 kW (195 PS), offering responsive performance and strong low-end pulling power for urban and highway driving.
Fitted to the W205 C-Class, W213 E-Class, and X253 GLC, the OM654.930 was designed for fuel efficiency, driving refinement, and emissions compliance in executive and premium SUV applications. Emissions compliance was achieved through cooled exhaust gas recirculation (EGR), a diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue dosing, enabling Euro 6d-TEMP compliance across its production run. Its design emphasizes NVH reduction, thermal efficiency, and integration with 48V EQ Boost mild-hybrid systems.
One documented reliability concern is early turbocharger actuator wear, particularly in units produced between 2017 and 2019. Highlighted in Daimler Service Information Bulletin 20-05-011, the issue is linked to thermal stress and carbon buildup on VGT vanes. From 2020, revised actuator hardware and updated calibration were implemented to improve durability.
Production years 2017–2022 meet Euro 6d-TEMP standards (VCA UK Type Approval #VCA/DIESEL/OM654).
The Mercedes-Benz OM654.930 is a 1,950 cc inline-four turbo-diesel engineered for compact and mid-size platforms (2017–2022). It combines Bosch common-rail injection (up to 2,200 bar) with a variable-geometry turbocharger and integrated 48V EQ Boost system to deliver strong low-RPM torque. Designed to meet Euro 6d-TEMP emissions standards, it balances efficiency with regulated environmental performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,950 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged with VGT | |
| Bore × stroke | 82.0 mm × 92.0 mm | |
| Power output | 120–143 kW (163–195 PS) | |
| Torque | 400–400 Nm @ 1,250–3,500 rpm | |
| Fuel system | Bosch CRS 3.0 common-rail (2,200 bar max) | |
| Emissions standard | Euro 6d-TEMP | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Garrett GT1544V VGT with electric actuator | |
| Timing system | Chain-driven (dual-row, service-interval critical) | |
| Oil type | MB 229.71 | |
| Dry weight | 178 kg |
The OM654.930 delivers responsive low-RPM torque ideal for urban and mixed driving but requires strict adherence to fuel quality standards to prevent high-pressure pump and injector wear. MB 229.71 oil must be used with 20,000 km service intervals to maintain engine longevity. Ultra-low sulfur diesel (ULSD, EN 590) and regular AdBlue replenishment are mandatory to prevent EGR, DPF, and SCR system fouling. The dual-row timing chain system demands timely replacement per manufacturer schedule—failure to service can result in catastrophic engine damage. Early units (pre-2020) should have actuator inspection and update per Daimler SIB 20 05 011 to mitigate premature failure. Active regeneration cycles must be completed monthly to maintain DPF efficiency in city-driven vehicles.
Oil Specs: Requires MB 229.71 specification (Daimler SIB 20 05 011). Compatible with ACEA C2/C3 standards.
Emissions: Euro 6d-TEMP certification applies to all models (2017–2022) (VCA Type Approval #VCA/DIESEL/OM654).
Power Ratings: Measured under WLTP. Higher outputs (195 PS) require full AdBlue system functionality and EQ Boost integration (Daimler TIS M134000).
Daimler Technical Information System (TIS): Docs M134000, M134001, SIB 20 05 011
VCA Type Approval Database (VCA/DIESEL/OM654)
ISO 1585: Road vehicles — Engine test code — Net power
The Mercedes-Benz OM654.930 was used across Mercedes-Benz's W205, W213, and X253 platforms with longitudinal mounting and no licensed external applications. This engine received platform-specific adaptations-shorter accessory drives in the W205 and reinforced cooling in the X253-and from 2022 was succeeded by the OM654.931 with revised emissions calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine ID plate mounted on the left-side cylinder block near the oil filter housing (Daimler TIS M134004). The 7th digit of the VIN indicates engine type ('K' for OM654 series). Pre-2020 units have a pneumatic VGT actuator; post-2020 revisions use an electric actuator. Critical differentiation from OM651: OM654.930 features Bosch CRS 3.0 injection (2,200 bar), EQ Boost integration, and electric VGT actuation, while OM651 uses CRS 2.0 (1,800 bar) and vacuum-actuated turbo. Service parts require chassis number verification—actuators for pre-2020 models are incompatible with later units due to calibration differences (Daimler SIB 20 05 011).
The OM654.930's primary reliability risk is turbocharger actuator wear in early builds, with elevated incidence in regions with high ambient temperatures. Daimler internal reports from 2019 indicated over 8% of pre-2019 units required actuator replacement before 150,000 km, while VCA field data shows Euro 6d-TEMP DPF systems in city-driven fleets require cleaning every 50,000–70,000 km. Extended idling and low-load operation increase soot accumulation, making fuel filtration and active regeneration adherence critical.
Analysis derived from Daimler technical bulletins (2017-2022) and UK DVSA failure statistics (2022-2030). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MERCEDES-BENZ OM654930.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with MERCEDES-BENZ or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
MERCEDES-BENZ Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialMERCEDES-BENZ documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
