Supercrazy BMW N42 N46 Petrol Engine Camshaft Timing Alignment Locking Tool Kit SF0026 Suitable for locking the camshafts 1.8 / 2.0 VALETRONIC chain drive petrol engines. For adjustment and arresting of the twin camshaft on petrol engines. ENGINE CODES - N42 / N46 / N46T / B18 / B18A / B20 / B20A / B20B