• Use pliers, BMW No. 17 5 500 , to open the clamp securing the breather hose at the cylinder head cover. • Remove cylinder head cover (1). • Remove spark plug. • Remove centre screw plug in engine block cov- er, right. • Turn crankshaft to TDC position with an Allen key. L Note: Watch out for escaping oil and catch it in a suitable container. L Note: TDC position: marks on the timing-chain sprockets are parallel with the cylinder head, the bores in the timing-chain sprockets are at the top. • Remove screw (2) close to the oil feed stub pipe and install locking screw, BMW No. 11 6 570 , to prevent the crankshaft from turning. 11.19 1 2 K14110030 1 2