The 025CHA CVT automatic transmission CVT is suitable for the Aria Z5 Plus

1. Design & Function:

   • Pulley-Based CVT with electro-hydraulic control for seamless ratio adjustment (5.2:1 range).

   • Belt-Driven (Bosch-supplied pushbelt, 11.5mm pitch) optimized for fuel efficiency.

2. Key Specs:

   • Torque Capacity: 180Nm (compatible with 1.5L NA engines).

   • Fluid: Proprietary CVT-3 oil (viscosity 6.8 cSt @100°C).

   • Control Module: Integrated TCU with adaptive shift logic and sport mode.

3. Durability Features:

   • Hardened steel pulleys (52 HRC, 0.2µm surface finish).

   • Enhanced cooling system (max fluid temp 125°C).

4. Failure Modes:

   • Belt wear (due to contaminated fluid or overheating).

   • Valve body solenoid failure (causing erratic shifting).

   • Torque converter shudder (improper fluid maintenance).

Note: Requires 50k km fluid intervals; post-2022 models feature improved belt material