Timing Component Alignment Marks: Locations
The procedure for "Checking Camshaft Timing" can be found under Camshaft, Engine Testing and Inspection
The following is taken from "Adjusting camshaft timing (S85)"
Important!
Both inlet and exhaust camshafts can be adjusted in the 1st cylinder firing TDC position.
The procedure for checking timing is different from that for adjusting.
Attach cylinder (1-5) special tools A 11 5 301 11 5 300 Gauge and E 11 5 301 11 5 300 Gauge, secure with bolts (2).
Attach cylinder (6-10) special tools A 11 5 302 11 5 300 Gauge and E 11 5 302 11 5 300 Gauge, secure with bolts (1).