The Mercedes-Benz M 177.983 is a 3,982 cc, twin-turbocharged V8 petrol engine produced between 2017 and 2023. Developed by Mercedes-AMG, it features a hot-V configuration with DOHC 32-valve architecture, direct fuel injection (BlueDIRECT), and variable valve timing. In standard form it delivered 430 kW (585 PS) at 6,250 rpm and 750 Nm of torque at 1,750–4,500 rpm, providing high-performance power delivery and rapid throttle response.
Fitted to flagship AMG models including the E 63 S, GT 4-Door, and S 63 L, the M 177.983 was engineered for track-capable performance and daily drivability. Emissions compliance was achieved through dual three-way catalytic converters, closed-loop lambda control, and integrated exhaust manifolds, enabling Euro 6c compliance across all markets with lead-free petrol meeting EN 228 standards.
One documented engineering update involves the high-pressure fuel pump drive mechanism: early 2017–2019 units used a roller-follower drive prone to fatigue under sustained high-RPM operation. Mercedes-Benz addressed this in 2020 with Service Information Bulletin 01.0205/20, introducing a reinforced cam follower and revised drive lobe profile. This update significantly enhanced long-term fuel system reliability in high-mileage or track-driven applications.
Production years 2017–2020 meet Euro 6c standards; 2021–2023 models comply with Euro 6d depending on market (VCA UK Type Approval #VCA/EMS/8901).
The Mercedes-Benz M 177.983 is a 3,982 cc twin-turbocharged V8 petrol engine engineered for high-performance applications (2017–2023). It combines hot-V architecture with dry-sump lubrication to deliver rapid boost response and sustained power output. Designed to meet Euro 6c/6d emissions standards, it balances AMG-derived engineering with road compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 3,982 cc | |
| Fuel type | Petrol | |
| Configuration | V8, DOHC, 32-valve | |
| Aspiration | Twin-turbocharged | |
| Bore × stroke | 83.0 mm × 92.0 mm | |
| Power output | 430 kW (585 PS) @ 6,250 rpm | |
| Torque | 750 Nm @ 1,750–4,500 rpm | |
| Fuel system | Direct injection (BlueDIRECT) with multi-point backup | |
| Emissions standard | Euro 6c (pre-2021); Euro 6d (2021–2023, market-dependent) | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Twin-scroll, low-inertia (integrated exhaust manifolds) | |
| Timing system | Double-row roller chain (DOHC) | |
| Oil type | SAE 0W-40 (MB 229.52) | |
| Dry weight | 189 kg |
The twin-turbo V8 delivers rapid boost response ideal for performance driving but requires strict adherence to 15,000 km oil change intervals to prevent high-pressure fuel pump drive wear and turbo degradation. MB 229.52-spec 0W-40 oil is critical due to its high-temperature stability and protection of the dry-sump system. Extended idling should be minimized to maintain oil pressure and cooling efficiency. The BlueDIRECT system requires periodic injector cleaning to maintain fuel metering accuracy. Post-2020 models feature reinforced cam followers and revised drive lobes; pre-2020 units should have the upgrade per Mercedes-Benz SIB 01.0205/20. Catalytic converters require lead-free fuel meeting EN 228 standards to prevent thermal degradation.
Oil Specs: Requires MB 229.52 specification (Mercedes-Benz SIB 01.0205/20). Supersedes ACEA A3/B4 requirements.
Emissions: Euro 6c certification applies to 2017–2020 models (VCA Type Approval #VCA/EMS/8901). 2021–2023 models meet Euro 6d in applicable markets.
Power Ratings: Measured under DIN 70020 standards. Output consistent across all markets (Mercedes-Benz Group PT-2018).
Mercedes-Benz Technical Information System (TIS): Docs A35030, A35120, A35210, SIB 01.0205/20
VCA Type Approval Database (VCA/EMS/8901)
SAE International: DIN 70020 Engine Power Certification Standards
The Mercedes-Benz M 177.983 was used across Mercedes-Benz's W213/C296 platforms with longitudinal mounting and developed exclusively for AMG high-performance applications. This engine received platform-specific adaptations-reinforced engine mounts in the W213 and modified intake manifolds in the C296-and from 2020 the updated fuel pump drive system improved reliability, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front timing cover (Mercedes-Benz TIS A35070). The 8th VIN digit indicates engine family ('M' for M177 series). Pre-2020 models have silver cam covers with ribbed valve covers; post-2020 units use black cam covers. Critical differentiation from standard M177: M 177.983 features AMG-specific intake manifold, red-painted valve covers, and unique ECU calibration. Service parts require production date verification - fuel pump cam followers for pre-2020 engines are incompatible with post-2020 revisions due to reinforced design and lobe profile redesign (Mercedes-Benz SIB 01.0205/20).
The M 177.983's primary reliability risk is high-pressure fuel pump drive wear on pre-2020 builds, with elevated incidence in sustained high-RPM use. Internal Mercedes-Benz quality reports from 2021 noted a significant number of pre-2020 engines requiring cam follower and fuel pump replacement before 120,000 km, while AMG workshop data links a portion of high-idle instability to airflow meter drift. Extended idling and aggressive driving cycles increase valvetrain and fuel system stress, making oil quality and interval adherence critical.
Analysis derived from Mercedes-Benz technical bulletins (2017-2023) and UK DVSA failure statistics (2020-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MERCEDES-BENZ M177983.
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