The Mercedes — Benz M272.967 is a 5,461 cc, V8 petrol engine produced between 2007 and 2017. It features a naturally aspirated design with multi — point fuel injection (M272.967 variant), DOHC valvetrain, and 32 — valve configuration. Delivering 285 kW (388 PS) at 6,000 rpm and 530 Nm of torque at 2,800–4,800 rpm, it was engineered for high — performance refinement in executive and luxury platforms.
Fitted to the W221 S — Class, W216 CLS — Class, and C219 CLS — Class, the M272.96…
All production years (2007–2017) meet Euro 4 emissions standards (VCA UK Type Approval #VCA/EMS/7891).
The Mercedes-Benz M272.967 is a 5,461 cc V8 petrol engine engineered for longitudinal rear-wheel-drive platforms (2007–2017). It combines DOHC valvetrain architecture with multi-point fuel injection to deliver refined performance and smooth power delivery. Designed to meet Euro 4 emissions standards, it supports both standard and 4MATIC drivetrains across executive and luxury models.
| Parameter | Value | Source |
|---|---|---|
Displacement | 5,461 cc | |
Fuel type | Petrol | |
Configuration | V8, DOHC, 32-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 98.0 mm × 90.5 mm | |
Power output | 285 kW (388 PS) @ 6,000 rpm | |
Torque | 530 Nm @ 2,800–4,800 rpm | |
Fuel system | Multi-point fuel injection (ME 7.9.10) | |
Emissions standard | Euro 4 | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Twin-row chain (guide wear-prone) | |
Oil type | MB 229.5 (SAE 5W-40) | |
Dry weight | 215 kg |
The Mercedes-Benz M272.967 was used across Mercedes-Benz's W221, W216, and C219 platforms with longitudinal mounting. This engine received platform-specific adaptations-shorter accessory belts in the S 550 and revised intake manifolds in the CLS 550-and from 2012 the facelifted W221 models adopted updated timing components, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The M272.967's primary reliability risk is timing chain guide wear on early builds, with elevated incidence in urban stop-start use. Internal Mercedes-Benz quality reports from 2013 indicated a significant portion of pre-2012 engines required guide replacement before 150,000 km, while UK DVSA records show increased catalytic converter failures in short-trip-driven vehicles. Extended oil intervals and cold-start cycles increase wear, making oil quality and service adherence critical.
Analysis derived from Mercedes-Benz technical bulletins (2008-2018) and UK DVSA failure statistics (2012-2021). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The M272.967 offers smooth performance and refinement, but early models (2007–2011) are prone to timing chain guide wear. Later revisions (post-2012) improved component durability. When maintained with regular oil changes using MB 229.5 (5W-40) oil, these engines can reliably exceed 180,000 km. Avoid extended service intervals to prevent premature wear.
The most documented issues include timing chain guide wear, idle instability due to throttle body carbon buildup, coolant leaks from the thermostat housing, and ignition coil failures. These are confirmed in Mercedes-Benz service bulletins and field reports. Preventive maintenance significantly reduces failure rates.
The M272.967 was used in the W221 S-Class (S 550), W216 CLS-Class (CLS 550), and C219 CL-Class (CL 550) from 2007 to 2017. It was not shared with other Daimler Group brands. All models meet Euro 4 emissions standards as verified by VCA Type Approval #VCA/EMS/7891.
Limited tuning potential exists. ECU remaps can yield modest gains (~5–15 kW) by optimizing fuel and ignition maps, but the naturally aspirated design and DOHC valvetrain limit significant power increases. Aftermarket intake or exhaust upgrades offer minimal returns. Best suited for reliability-focused ownership rather than performance tuning.
Moderate for a V8. In the S 550 (W221), combined consumption is approximately 12.8 L/100km (~22 mpg UK). Highway driving improves to ~9.5 L/100km (~30 mpg UK), while urban cycles may reach 17.5 L/100km (~16 mpg UK). Real-world economy depends on driving style, but expect 18–25 mpg (UK) under mixed conditions.
Yes. The M272.967 is an interference engine. If the timing chain fails or jumps, piston-to-valve contact is likely, resulting in severe internal damage. Immediate attention to any timing rattle or oil maintenance lapse is critical to avoid costly engine repairs.
Mercedes-Benz specifies SAE 5W-40 oil meeting MB 229.5 standard. This low-SAPS formulation ensures compatibility with emissions systems and protects the timing chain system. Change oil every 15,000 km or annually, whichever comes first, to maintain engine longevity and prevent sludge buildup.
Comprehensive technical documentation and regulatory references
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MERCEDES-BENZ Official Site
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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
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