The constant slipping and friction required to vary the ratio generates significant thermal stress on the belt or chain and the pulley surfaces. Because the transmission cooler is often integrated into the radiator, a blockage or a failing radiator can starve the CVT of its necessary cooling airflow.
The CVT Transmission Design Flaw Behind Common Failures
CVT fluid degrades faster than standard automatic transmission fluid because it operates under higher heat and stress. Cooling System Vulnerabilities Many CVT failures are not due to the transmission itself, but due to the vehicle's cooling system.
If the manufacturer’s recommended fluid change intervals are ignored, the fluid becomes contaminated with metal shavings and sludge. This contaminated fluid loses its viscosity, failing to lubricate and cool the transmission properly, which directly leads to the internal component failure that plagues these systems.
The Design Flaw Behind CVT Transmission Slippage and Overheating
Fluid Maintenance: The Most Common Issue One of the most frequently cited answers to "what’s wrong with CVT transmission" questions is simply neglect. Torque Management and "Rubberbanding" Manufacturers address the slippage issue with complex electronic torque management programs.
More About What's wrong with cvt transmission
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