A8L V8-4.2L (BFM) (2004)
11. Fit the ribbed belt onto the pulleys in the order specified below:
^ Upper idler roller
^ Crankshaft
^ Lower idler wheel
^ Power steering pump
^ A/C compressor
^ Ribbed belt tensioner
^ Alternator
12. Turn tensioner for ribbed belt in direction of arrow in Figure 5.
13. Remove locking pin T10060.
14. Start engine and check that the belt runs properly.
15. Deactivate vehicle jack mode.