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 responsi…
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 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.
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.
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The OM654.930 is mechanically robust with a modern modular design and strong torque delivery. However, early models (2017–2019) are prone to turbo actuator wear if operated in high-temperature environments. Later revisions (post-2020) with electric actuators and updated calibration show improved reliability. Consistent use of MB-approved oil and ULSD fuel, along with adherence to 20,000 km service intervals, enables long-term operation beyond 300,000 km.
Primary issues include turbocharger actuator sticking (especially pre-2020 models), DPF clogging in city-driven vehicles, EGR cooler leakage, and timing chain tensioner wear. These are documented in Daimler service bulletins and field reports. Fuel quality is a major contributing factor, particularly for CP4 pump and injector failures.
The OM654.930 was used in several Mercedes-Benz compact and mid-size models: the C-Class (W205) C 200 d/C 220 d (2017–2022), E-Class (W213) E 200 d/E 220 d (2017–2022), and GLC (X253) GLC 200 d/GLC 220 d (2017–2022). It was not used in passenger cars or licensed to other manufacturers. All applications were Euro 6d-TEMP-compliant executive vehicles.
Yes. The OM654.930 responds well to ECU remapping, typically gaining +30–50 kW. Stock components—particularly the CP4 pump and Garrett turbo—can support moderate tuning. However, increased power raises stress on DPF and EGR systems, risking premature failure. Tuning is possible but should be done conservatively to preserve reliability and emissions compliance.
In the C 220 d (W205), typical fuel consumption is ~5.8 L/100km (urban) and ~4.1 L/100km (highway), depending on load and driving conditions. Real-world economy ranges from 4.8–6.5 L/100km in mixed service. The engine's efficiency is optimized for steady cruising, not frequent stop-start driving.
Yes. The OM654.930 is an interference engine, meaning piston-to-valve contact occurs if timing is lost. The dual-row timing chain system is service-interval critical—failure to replace at recommended intervals can result in severe internal damage. Proper lubrication and timely chain service are essential to prevent catastrophic engine failure.
Mercedes-Benz specifies MB 229.71 synthetic oil (5W-30 or 0W-30) for the OM654.930. Change intervals are up to 20,000 km under normal conditions. Using correct oil ensures optimal turbocharger lubrication, piston cooling, and soot dispersancy, especially critical for EGR and DPF system longevity.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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