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Brand: C.OEFT
OE numbers：A2760500278
Compatible model: /
Number of teeth on the product: /
Product weight: 0.5KG
Packaging size: 10*4.5*4.5 cm
Product packaging: Natural Packaging
Car Series:for Mercedes Benz 276
Car Type：Germany
1.Hydraulic Core of the VVT System: Precise Pressure Control and Diversion via Dual Spools
Equipped with an "independent dual-spool design for intake and exhaust sides" with a spool displacement accuracy of ≤0.003mm, it receives signals from the ECU to precisely adjust engine oil pressure (range: 0.7-13bar) and flow paths. It distributes oil to the "advance/retard chambers" of the intake and exhaust camshaft phasers, ensuring a phase adjustment error of ≤±0.4°. This enables "independent optimization of intake and exhaust timing," serving as the core power source for the VVT system of the 276 engine.
2.Power Characteristic Optimization: Aligning with "Abundant Low-Speed Torque and Smooth High-Speed Performance" Tuning
·Low-speed, low-load (urban commuting): Advances intake valve opening and reduces exhaust valve retard angle, increasing torque by 9%-11% in the 1500-2500rpm range (e.g., +35N·m at 2000rpm for the E300L 276 engine) to reduce start-up lag;
·High-speed, high-load (overtaking/cruising): Retards intake valve closing and extends exhaust valve opening. Combined with the variable intake manifold, this increases maximum power by 5%-6%, suppresses high-speed knocking, and ensures sufficient power reserve.
3.Multi-Condition Adaptability: Ensuring Stable Operation in Complex Scenarios
·Cold start (below -20℃): Rapidly builds pressure with a 0.5bar pre-pressure, shortens valve overlap angle, and achieves a 99.6% cold start success rate to avoid vibration and stalling;
·Idle speed: Controls flow fluctuation to ≤1.8%, reducing idle fuel consumption by 0.22L/h and noise by 3-4 decibels, meeting the quietness requirements of luxury vehicles;
·High load (full-load climbing): Spool response time ≤0.2 seconds, with coordinated adjustment of intake and exhaust phases by 15°CA (crank angle) to prevent power attenuation and excessive water temperature.
1.OE-Level Adaptation for 276 Engines: Zero Installation Risks and No Error Codes
Manufactured in strict compliance with Mercedes-Benz OE standards, its interface, signal protocol, and oil passage compatibility fully match the cylinder head oil passages and ECU of the 276 engine. It can be directly replaced without modification, compatible with models such as the E-Class and S-Class. This avoids issues common with aftermarket parts (16% oil leakage rate and 8% timing adjustment error rate) and is compatible with the Xentry diagnostic system.
2.High-Load Resistant Design: Longer Service Life Than Aftermarket Parts
·Valve body: Made of high-strength die-cast aluminum alloy specified by Mercedes-Benz (tensile strength ≥330MPa) with "hard anodization + ceramic composite coating," increasing oil corrosion resistance by 70%. It withstands extreme temperatures of -45℃~180℃ and oil pressure above 13bar to prevent valve body deformation;
·Spools/seals: Martensitic stainless steel spools (hardness ≥HV580) for enhanced wear resistance; fluororubber + PTFE composite seals (temperature resistance: -45℃~200℃) to resist oil sludge and chemical erosion. Under normal conditions, its service life reaches 120,000-150,000km (vs. only 50,000-70,000km for aftermarket parts).
3.High-Precision Control: Improving Efficiency, Saving Fuel, and Meeting Compliance
Independent dual-spool control calibrated by Mercedes-Benz ensures a pressure control error of ≤±1.2% (vs. ±7% for aftermarket parts) and flow control error of ≤±1.8%. This optimizes fuel combustion efficiency by 4%-6% and reduces comprehensive fuel consumption by 0.3-0.5L/100km (e.g., urban fuel consumption of the E300L 276 engine reduced from 11.2L to 10.7L/100km), meeting China’s National VI B and EU Euro 6d-TEMP emission standards.
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