Tools to adjust engine timing when replacing timing chain & head gasket. Suitable for the following BMW models:- 1 Series: 118 D (E81 - E87) 120 D (E81 - E82 - E87) 123 D (E81 - E82 - E87) - 3 Series: 318 D (E90 - E91) 320 D (E90 - E91 - E92) - 5 Series: 520 D (E60 - E61) - X3: 2.0 D (E83) Content:Tools for locking the camshaft, locking and rotating the crankshaft