• To prevent the engine shafts(camshaft, crankshaft) from turning belt tensioner when changing a timing belt or during other engine repairs. • Renault: Clio, Megane, Scenic, Lanuna, Espace, Kangoo, Trafic, Master (99-04). Nissan: Micra, Kubistar, Primastar, Interstar. Opel: Vivaro, Movano. • Engine: 1.5, 1.9, 2.2, 2.5DCI. (K9K, K9Q, G9T, G9U)