ENGINE TIMING TOOL BMW CITROEN PEUGEOT N40 N42 N45 N46. SATRA S-BBW5 is timing tool set to adjust and work on BMW, Citroen and Peugeot (N40, N45 and N45T) – petrol engines. The set includes all important parts to remove the camshaft, proof the camshaft timing and setting/locking the timing chain.