The Mercedes — Benz M113.967 is a 5,439 cc, V8 petrol engine produced between 1999 and 2000. It forms part of the M113 engine family, featuring a 32 — valve DOHC configuration and sequential multi — point fuel injection (SIMPLE). This naturally aspirated design delivers 235 kW (320 PS) at 5,500 rpm and 460 Nm of torque at 3,000 rpm, offering high — performance capability for luxury and grand tourer applications.
Fitted primarily to the W220 S — Class and C215 CL — Class models, in…
Production years 1999–2000 meet Euro 2 emissions standards .
The Mercedes-Benz M113.967 is a 5,439 cc V8 petrol engine engineered for luxury and performance models (1999–2000). It combines a 32-valve DOHC valvetrain with sequential fuel injection to deliver smooth, linear power delivery. Designed to meet Euro 2 standards, it balances refinement and performance in naturally aspirated form.
| Parameter | Value | Source |
|---|---|---|
Displacement | 5,439 cc | |
Fuel type | Petrol | |
Configuration | V8, DOHC, 32-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 97.0 mm × 92.0 mm | |
Power output | 235 kW (320 PS) @ 5,500 rpm | |
Torque | 460 Nm @ 3,000 rpm | |
Fuel system | Sequential multi-point fuel injection (SIMPLE) | |
Emissions standard | Euro 2 | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Not applicable | |
Timing system | Timing chain (dual-row, non-interference design) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 205 kg |
The Mercedes-Benz M113.967 was used across Mercedes-Benz's W220/C215 platforms with longitudinal mounting and no external licensing. This engine received platform-specific adaptations-intake manifold tuning in the C215 and revised ECU mapping in facelifted W220 units-and from 1999 the updated W220 received revised camshaft profiles to improve low-end torque, creating partial interchange limits. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The M113.967 offers smooth performance and strong torque, but remains prone to intake camshaft lobe wear if maintenance intervals are extended or incorrect oil is used. Later M113 series revisions show improved durability when serviced correctly. Regular oil changes using MB 229.3 (10W-60) specification oil significantly enhance long-term reliability. Well-maintained units can exceed 200,000 km without major issues.
Primary concerns include intake camshaft lobe wear, cooling system failures (thermostat/hoses), lambda sensor degradation, and fuel injector clogging. These are documented in Mercedes-Benz Service Bulletin 07-0501-98 and TIS documentation. Preventive maintenance, especially oil and coolant service, greatly reduces the likelihood of these failures.
The M113.967 was used in the Mercedes-Benz S-Class (W220) S 55 (1999–2000) and CL-Class (C215) CL 55 (1999–2000). It was not exported to North America and remained exclusive to European and select international markets. All applications feature longitudinal mounting and share platform-specific ECU tuning.
Limited tuning potential exists due to its naturally aspirated design. ECU remapping can yield modest gains (~20–25 PS) by optimizing fuel and ignition maps. However, significant power increases require internal modifications. As the engine was not designed for forced induction, adding a supercharger or turbocharger involves substantial engineering and is not supported by OEM documentation.
In combined driving, the M113.967 achieves approximately 14.5–17.5 L/100km (16–20 mpg UK). Highway efficiency improves to ~11.0 L/100km (26 mpg UK), while city driving may reach 20.0 L/100km (14 mpg UK). Real-world consumption depends on driving style and vehicle weight. Fuel quality per EN 228 ensures optimal injector and catalyst longevity.
No. The M113.967 features a non-interference valvetrain design. If the timing chain fails or jumps, the pistons will not contact the valves, preventing catastrophic internal damage. However, the engine will cease to run, and repair of the chain and tensioner is still required. This design improves service safety but does not reduce the importance of regular inspection.
Mercedes-Benz specifies MB 229.3 (SAE 10W-60) or equivalent ACEA A3/B3 oil for the M113.967. Oil changes should occur every 15,000 km or annually. Using incorrect viscosity or lower-specification oil increases the risk of camshaft lobe wear, particularly in high-load conditions. Always verify oil meets MB 229.3 standards before use.
Comprehensive technical documentation and regulatory references
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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
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VCA Certification Portal
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