Timing Chain Elongation Testing Gauge for VAG 1.2/1.4 TFSi. Audi: A1 (12-15), A1 Sportback (12-15), A3 (13-15), A3 Sportback (12-15) Seat: Ibiza (12-17), Leon (12-15), Toledo (12-17). Made of heavy duty steel and plastic material, the tools are exceedingly sturdy and durable, ensuring a long service life.