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Brand: C.OEFT
OE numbers: ASBG-BC.271LK-7
Product Name: Timing Chain Kit
Compatible model: 2710500800 2710500900 A2710160921
Product status: New
Number of teeth on the product: /
Product weight: 5.070kg
Packaging size: 40X40X10cm
Product packaging: Neutral Packaging
Car Series: Germany
Car Type:for Mercedes-Benz 271
As the "power transmission backbone" of the Mercedes-Benz M271 engine, the kit’s components work in tandem to maintain mechanical timing accuracy—essential for the supercharged engine’s balanced power output and reliability:
·Primary Chain (2710500800): Connects the crankshaft to the intake/exhaust camshafts, strictly maintaining a 1:2 rotation ratio (four-stroke engine standard) and cooperating with the M271’s variable valve timing (VVT) system. It ensures the intake/exhaust valves open/close at the exact moment corresponding to piston movement (intake → compression → power → exhaust strokes), preventing "valve-piston collision" (a catastrophic failure caused by timing skip, with repair costs exceeding $5,000 for the M271).
·Secondary Chain (2710500900): Drives the M271’s balance shafts, counteracting the vibration caused by the inline-four engine’s reciprocating motion. Precise balance shaft timing reduces idle vibration (a common complaint in worn M271 engines) and protects the crankshaft and bearings from excessive stress.
·Hydraulic Tensioners: Real-time compensation for chain slack caused by high torque and heat. The dual-chamber design provides rapid tension adjustment (response time <0.1 seconds) during sudden supercharger load changes (e.g., full-throttle acceleration), avoiding "chain rattle" or "timing deviation" that disrupts the M271’s VVT system and triggers fault codes.
·Engine-Specific Calibration for M271’s Supercharged Design: Strictly developed based on the structural parameters of Mercedes-Benz M271 1.8T supercharged engines (maximum power 150-184kW, peak torque 250-310N·m). Key specifications are fully aligned with OE standards:
2710500800 primary chain (122 links, 9.525mm pitch) – matches the M271’s crankshaft-camshaft transmission needs;
2710500900 secondary chain (98 links) – tailored for the engine’s balance shaft drive (a unique feature of the M271 to reduce vibration);
A2710160921 guide – designed to fit the M271’s compact timing cover layout, avoiding interference with supercharger components.
This eliminates issues like "chain-sprocket meshing mismatch" or "balance shaft timing deviation" common in universal kits, which could trigger the M271’s "check engine" light (P0016/P0017 codes) or cause idle vibration.
·Full-Set Component Synergy, No Wear Mismatch: Unlike separate purchases of OE parts (which may mix new and old components with inconsistent wear rates), this kit ensures all parts (chains, guides, tensioners, sprockets) are calibrated as a single system. The hardness of the chain links and the wear resistance of the guide surfaces are precisely matched, preventing premature failure caused by "uneven stress" between mismatched parts—a critical advantage for the M271’s high-pressure supercharged operation.
·Plug-and-Play Installation: All components’ mounting holes, flange dimensions, and torque specifications are identical to Mercedes-Benz OE parts. The tensioner’s oil inlet port aligns perfectly with the M271’s hydraulic circuit, and the guide’s fixing brackets fit the engine block without modifications. Professional technicians can complete the overhaul in 3-4 hours, 25% faster than non-specialized kits.
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