The 025CHA CVT automatic transmission CVT is suitable for the Aria Z5 Plus
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Design & Function:
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Pulley-Based CVT with electro-hydraulic control for seamless ratio adjustment (5.2:1 range).
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Belt-Driven (Bosch-supplied pushbelt, 11.5mm pitch) optimized for fuel efficiency.
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Key Specs:
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Torque Capacity: 180Nm (compatible with 1.5L NA engines).
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Fluid: Proprietary CVT-3 oil (viscosity 6.8 cSt @100°C).
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Control Module: Integrated TCU with adaptive shift logic and sport mode.
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Durability Features:
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Hardened steel pulleys (52 HRC, 0.2µm surface finish).
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Enhanced cooling system (max fluid temp 125°C).
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Failure Modes:
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Belt wear (due to contaminated fluid or overheating).
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Valve body solenoid failure (causing erratic shifting).
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Torque converter shudder (improper fluid maintenance).
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Note: Requires 50k km fluid intervals; post-2022 models feature improved belt material
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