Mercedes Benz Truck R 320 BLUETEC Technical T-14_40-27 Date: 090120 Emissions - Dosing Valve/Heated Line Service Precaution

Mercedes Benz Truck R 320 BLUETEC Technical T-14_40-27 Date: 090120
Emissions - Dosing Valve/Heated Line Service Precaution
Date: January 20, 2009
Order No.: T-B-14.40/27
Supersedes:
Group: 14
SUBJECT:
Model 164.125/825
Model 251.125
Dosing Valve and Heated Line
When working on the above model vehicles and the dosing valve or heated line is to be removed for inspection, testing or replacement, please note
the following.
Mercedes Benz Truck R 320 BLUETEC
Page 185
2. When removing the dosing valve (Figure 1, A) for any reason, the dosing valve clamp (Figure 2, D) seal ring (Figure 2, C) must be replaced.
2. When disconnecting the heated line, the O-ring (Figure 2, B) must be replaced.
3. The part number for the dosing valve seal ring (Figure 2, C) is currently not in EPC and will be included in the next EPC update.
4. When replacing the dosing valve (Figure 1, A), the new dosing valve comes with the seal ring (Figure 2, C) but the clamp will need to be
ordered separately.
5. The torque specification for the clamp (Figure 2, D) is 5 Nm.
PARTS INFORMATION