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What is the appropriate clearance adjustment for Hyundai dual-clutch transmission?

2 Answers

LillianaMarie

07/24/25 9:49am

Intake valve clearance: 0.17-0.23mm. Exhaust valve clearance: 0.22-0.28mm. Fuel efficiency: The dual-clutch transmission eliminates torque interruption, meaning the engine's power is constantly utilized and always operating at its optimal level, resulting in significant fuel savings. Comfort: Due to the fast shifting speed, each gear change in a DCT is very smooth, with the jerkiness reduced to a level that is hardly noticeable to the human body. Fast shifting: The shifting time of a dual-clutch transmission is extremely short, even faster than that of a manual transmission, taking less than 0.2 seconds.

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LeWeston

08/11/25 5:06am

For those who frequently work with transmissions, adjusting the dual-clutch clearance is a delicate task. The standards vary for each car model—for instance, some Hyundai or Volkswagen dual-clutch systems recommend a clearance between 0.1 to 0.5 mm, but this isn't a one-size-fits-all rule due to differing manufacturer designs. Precision tools like micrometers and specialized equipment are essential during adjustment—even a slight slip can cause issues: too tight, and the clutch plates wear out prematurely, leading to severe vehicle shuddering; too loose, and you risk gear slippage and poor shifting, drastically impacting acceleration performance. I've encountered many owners who attempted DIY fixes, only to cause damage and double their repair costs. It's best to consult the vehicle manual or visit an authorized 4S dealership—they have the tools to calibrate precisely to factory specifications, preventing future malfunctions that could compromise driving safety. This investment in reliable maintenance is well worth it.

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