The Mercedes-Benz OM 654.932 is a 1,950 cc, inline-four turbo-diesel engine produced between 2016 and 2020. It was engineered as a modern, efficient powerplant for compact and mid-size luxury applications, featuring common-rail direct injection, variable geometry turbocharging (VGT), and double overhead camshafts (DOHC). In standard tune, it delivered 143 kW (195 PS) and 400 Nm of torque, providing responsive performance and strong low-end driveability.
Fitted primarily to the W205 C-Class, W213 E-Class, and X253 GLC, the OM 654.932 was designed for drivers seeking a balance of efficiency, refinement, and dynamic performance. Emissions compliance was achieved through exhaust gas recirculation (EGR), diesel oxidation catalyst (DOC), and diesel particulate filter (DPF), enabling Euro 6 compliance across its production run. Its design emphasized thermal efficiency and NVH reduction for premium driving comfort.
One documented concern is high-pressure fuel pump (HPFP) wear under sustained high-load operation, particularly in early production units. This issue, referenced in Mercedes-Benz Service Information Bulletin 22/2017, was linked to fuel quality sensitivity and inadequate filtration in pre-2018 builds. From 2018 onward, an updated HPFP design and revised ECU calibration were implemented to improve long-term reliability under real-world conditions.
Production years 2016–2020 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/6797).
The Mercedes-Benz OM 654.932 is a 1,950 cc inline-four turbo-diesel engineered for compact and mid-size luxury vehicles (2016–2020). It combines common-rail direct injection with a single variable-geometry turbocharger to deliver responsive performance and driving comfort. Designed to meet Euro 6 emissions standards, it balances efficiency with strong low-end torque.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,950 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 83.0 mm × 90.0 mm | |
| Power output | 143 kW (195 PS) @ 3,800 rpm | |
| Torque | 400 Nm @ 1,600–2,400 rpm | |
| Fuel system | Bosch CRS 3.0 common-rail (up to 2,200 bar) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single variable-geometry turbo (Garrett GT1749V) | |
| Timing system | Double roller chain (front-mounted) | |
| Oil type | MB 229.52 (SAE 0W-30) | |
| Dry weight | 172 kg |
The inline-four configuration delivers strong low-RPM torque ideal for urban and highway driving, but requires adherence to 15,000 km oil change intervals using MB 229.52 specification oil to maintain chain and turbo longevity. Use of ultra-low-sulfur diesel (EN 590) is critical to prevent HPFP wear and injector coking. Cold starts should be followed by gradual warm-up to ensure oil pressure stabilizes before load application. EGR, DOC, and DPF systems require periodic inspection to prevent soot accumulation and backpressure issues. Post-2018 models benefit from revised fuel pump design and improved ECU calibration per SIB 22/2017.
Oil Specs: Requires MB 229.52 (0W-30) specification (Mercedes-Benz SIB 22/2017). Not compatible with ACEA A/B standards.
Emissions: Euro 6 certification applies to all models (2016–2020) (VCA Type Approval #VCA/EMS/6797).
Power Ratings: Measured under DIN 70020 standards. Output remains consistent across fuel grades meeting EN 590 (Mercedes-Benz TIS Doc. A33510).
Mercedes-Benz Technical Information System (TIS): Docs A32880, A33134, SIB 22/2017
VCA Type Approval Database (VCA/EMS/6797)
SAE International: DIN 70020 Engine Power Test Code
The Mercedes-Benz OM 654.932 was used across Mercedes-Benz's W205/W213/X253 platforms with longitudinal mounting. This engine received platform-specific adaptations-shortened intake manifolds for SUV packaging-and from 2018 the updated emissions calibration for enhanced DPF regeneration, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the left-side cylinder block near the exhaust manifold (Mercedes-Benz TIS A32925). The 8th VIN digit indicates engine type ('M' for OM 654 series). Pre-2018 models have silver valve covers with ribbed timing covers; post-2018 units retain similar styling but feature updated fuel pump calibration. Critical differentiation from OM 651 series: OM 654.932 has Bosch CRS 3.0 injection with EDC17CP52 ECU and higher rail pressure, while older variants use CRS 2.0. Service parts require production date verification - fuel filters for pre-2018 builds are not compatible with later units due to housing redesign (Mercedes-Benz SIB 22/2017).
The OM 654.932's primary reliability risk is high-pressure fuel pump wear under sustained load, with elevated incidence in high-mileage fleet use. Internal Mercedes data from 2018 indicated a notable share of pre-2018 units requiring pump replacement before 200,000 km, while UK DVSA records show increased particulate-related failures in urban-operated C-Class models. Extended idling and poor fuel quality amplify pump and EGR stress, making filtration and oil adherence critical.
Analysis derived from Mercedes-Benz technical bulletins (2016-2020) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MERCEDES-BENZ OM654932.
Comprehensive technical documentation and regulatory references
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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