Routing Diagram For Poly-V Belt - AR13.22-P-3902-02MRA

Engine 274.9 in model 205 (except 205.047/147/247) 

Engine 274.9 in model 253 (except 253.354/954) 

Shown on engine 274.9 with a manual coolant pump 

Fig 1: Routing Diagram For Poly-V Belt - Engine 274.9 With A Manual Coolant Pump

Courtesy of MERCEDES-BENZ USA

Shown on engine 274.9 with an electrical coolant pump 

Fig 2: Routing Diagram For Poly-V Belt - Engine 274.9 With An Electrical Coolant Pump

Courtesy of MERCEDES-BENZ USA