TSI Timing Belt Replacement – With and Without Locking Kit | Real-World Test and Results 🧠 Do You Really Need a Locking Kit for a TSI Timing Belt Change? This question comes up all the time — especially for anyone working on VW, SEAT, Škoda, or Audi TSI engines . The official service manuals always say to use the locking kit… but what actually happens if you don’t? In my latest video on the How2FixIt YouTube channel, I test it out for real. I replace the timing belt two ways — first with the proper locking tools , and then again without them , marking the pulleys and belt by hand to see how accurate the result really is. 🎥 Watch the full video here! 🔧 What’s Covered in the Video: How to align the camshaft and crankshaft correctly Using the TSI locking kit vs marking by hand Tensioning the new timing belt Checking alignment and marks before reassembly The real-world difference between both methods ⚙️ Which Engines This Applies To: This gui...