for 1.6, 1.8 and 2.0 L 4-cylinder petrol engines with twin camshafts in BMW 1-series, 3-series, 5-series, Z4 and X3 for models E46, E60/61, E81, E83, E85, E87 and E90/91 for locking the camshafts and crankshaft for timing the variable camshaft settings when disassembling / assembling camshafts and variable setting arrangement for timing chain replacement or engine repair
