Reduce Fuel Pressure Through Service Valve - AR07.03-P-1460-01MSA

Engine 256.9 in model 213, 238, 257, 290

HIGH-PRESSURE LINE, LOW-PRESSURE LINE, FUEL DISTRIBUTOR

Number	Designation			Engine 256.9
BA07.03-P-1009-01MRT	Cap on service connection	Plastic	Nm	1

Fig 1: Identifying Pressure Hose (119 589 04 63 00)

Courtesy of MERCEDES-BENZ USA

Unscrew cover (1) from service valve (2).
Guide end of pressure hose (01a) into a suitable container.
Screw pressure hose (01a) onto service valve (2).
The service valve (2) is opened in the process and the fuel pressure is reduced.
Unscrew pressure hose (01a) from service valve (2).
Tighten cover (1) on service valve (2) .
Replace cover (1).

Courtesy of MERCEDES-BENZ USA