S 55 AMG (220.174) V8-5.5L SC (113.991) (2004)
1.
Open hood to access fuse and relay box (arrow, Figure 5) located on left side of engine compartment.
2.
Open fuse and relay box cover.
3.
Replace air injection pump relay (A, Figure 6).
4.
Assemble in reverse order.
5.
Proceed to SUBJECT I.
D.
MODEL 211 - WITH CODE 803 OR 804 - REPLACE SECONDARY AIR INJECTION PUMP RELAY