The Mercedes-Benz M113.995 is a 4,966 cc, V8 naturally aspirated petrol engine produced between 2001 and 2006. It features a 90-degree V8 configuration with dual overhead camshafts (DOHC), four valves per cylinder, and sequential multi-point fuel injection. This engine delivers 225 kW (306 PS) at 5,500 rpm and 460 Nm of torque at 4,000 rpm, providing strong linear power delivery ideal for grand touring applications.
Fitted to models such as the W211 E-Class (E500), W220 S-Class (S500), and R230 SL-Class (SL500), the M113.995 was engineered for smooth, refined performance with effortless acceleration. It met Euro 3 emissions standards through precise air-fuel ratio control and secondary air injection, targeting luxury buyers who prioritized drivability and quiet operation over outright fuel economy.
One documented service concern is premature camshaft sprocket wear, identified in Mercedes-Benz Technical Service Bulletin 07/2004 (No. 203.010). This issue stems from inadequate lubrication to the timing chain tensioner during cold starts. Later production units (post-2004) received revised oil passages and updated sprocket materials to improve durability.
Production years 2001–2003 meet Euro 3 standards; 2004–2006 models comply with Euro 4 (VCA UK Type Approval #VCA/EMS/5678).
The Mercedes-Benz M113.995 is a 4,966 cc V8 naturally aspirated engine engineered for luxury sedans and coupes (2001–2006). It combines DOHC architecture with sequential fuel injection to deliver smooth, linear power delivery. Designed to meet Euro 3 and later Euro 4 standards, it balances performance with acceptable emissions for its era.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 4,966 cc | |
| Fuel type | Petrol (Unleaded, 95 RON min) | |
| Configuration | 90° V8, DOHC, 32-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 96.9 mm × 84.0 mm | |
| Power output | 225 kW (306 PS) @ 5,500 rpm | |
| Torque | 460 Nm @ 4,000 rpm | |
| Fuel system | Sequential multi-point fuel injection (ME-SFI) | |
| Emissions standard | Euro 3 (pre-2004); Euro 4 (2004–2006) | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | N/A | |
| Timing system | Dual-row roller chain (front-mounted) | |
| Oil type | MB 229.3 (SAE 5W-40) | |
| Dry weight | 220 kg |
The naturally aspirated V8 provides smooth, linear power ideal for relaxed driving but requires strict adherence to 15,000 km oil change intervals using MB 229.3 specification oil to prevent camshaft sprocket wear. Cold-start idling should be limited to reduce wear on the front-mounted timing chain tensioner. The ME-SFI system demands high-octane unleaded fuel (95 RON minimum) to prevent knock and maintain longevity. Post-2004 models feature revised oil passages and sprocket materials; pre-2004 units should have the updated components installed per TSB 07/2004. Secondary air injection systems require periodic inspection to ensure proper cold-start emissions control.
Oil Specs: Requires MB 229.3 (5W-40) specification (Mercedes-Benz TSB 07/2004). Supersedes ACEA A3/B3 requirements.
Emissions: Euro 3 certification applies to pre-2004 models only (VCA Type Approval #VCA/EMS/5678). 2004–2006 models meet Euro 4 depending on market.
Power Ratings: Measured under DIN 70020 standards. Output remains consistent across markets with premium fuel (Mercedes-Benz TIS Doc. A30210).
Mercedes-Benz Technical Information System (TIS): Docs A30125, A30210, TSB 07/2004
VCA Type Approval Database (VCA/EMS/5678)
DIN Standards: DIN 70020 Engine Power Measurement
The Mercedes-Benz M113.995 was used across Mercedes-Benz's W211/W220/R230 platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced mounts in the W220 and tuned intake manifolds in the R230-and from 2004 the facelifted W211 models adopted revised camshaft sprockets, 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 A30180). The 8th VIN digit indicates engine type ('E' for M113 series). Pre-2004 models have silver valve covers with ribbed design; post-2004 units use revised camshaft sprockets. Critical differentiation from M113.996: M113.995 has 4.9L displacement with 225 kW output, while M113.996 is 5.4L with 265 kW. Service parts require production date verification - camshaft sprockets for engines before 08/2004 are incompatible with later units due to design revision (Mercedes-Benz TSB 07/2004).
The M113.995's primary reliability risk is camshaft sprocket wear on early builds, with elevated incidence in cold climates and short-trip driving. Internal Mercedes-Benz quality reports from 2005 indicated a notable share of pre-2004 engines requiring sprocket replacement before 150,000 km, while UK DVSA records link timing-related failures to extended oil intervals. Cold-start cycles and infrequent oil changes increase chain and sprocket stress, making oil quality and interval adherence critical.
Analysis derived from Mercedes-Benz technical bulletins (2001-2006) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MERCEDES-BENZ M113995.
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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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