<p>Understand transmission technology: TCU, mechatronic units, valve bodies, DSG, CVT and torque converters — how they work and how to replace them.</p>
A 4x2 gearbox drives one rear axle via one propeller shaft; a 4x4 unit must connect a transfer case and carry a front output. Why the two differ and how to order the correct Hiace gearbox.
Read ArticleVariable geometry, wastegate or fixed-vane — turbochargers fail in predictable ways. Learn how to diagnose a failing turbo and what to check before buying a replacement.
Read articleThe TCU is the brain of your automatic gearbox. Learn the difference between DSG, CVT and torque-converter units, and why a faulty TCU or valve body fails and how to replace it.
Read articleBrowse our full range of engines, gearboxes, and transmission components — engineered for performance, built for reliability.
