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Draining passive tank for reducing agent > < Removing and installing control unit for reducing agent metering systemJ880

A4 Mk3

Passive tank for reducing agent with attached components - exploded view
   
Passive tank for reducing agent with attached components - exploded view
  Note
Fitting location: on underbody (rear right).
1 - Transfer line
q   To active tank
q   Clip onto fuel tank
  WARNING
Safety risk due to escaping reducing agent.
Observe safety measures for handling reducing agent → Chapter.
2 - Connecting hose
q   From passive tank to transfer pump for reducing agent -V436-
3 - Transfer pump for reducing agent -V436-
q   Removing and installing → Chapter
4 - Nut
q   1.8 Nm
5 - Bolt
q   20 Nm
6 - Sleeve
7 - Grommet
8 - Filler line
q   From filler neck
  WARNING
Safety risk due to escaping reducing agent.
Observe safety measures for handling reducing agent → Chapter.
9 - Breather line
q   To filler neck
q   Clip onto fuel tank
10 - Retaining frame
q   For passive tank
11 - Bolt
q   20 Nm
12 - Nut
q   20 Nm
13 - Passive tank
q   For reducing agent
q   Removing and installing → Chapter
14 - Bolt
q   1.8 Nm
15 - Cover
q   For transfer pump for reducing agent -V436-
16 - Nut
q   2.1 Nm

   

Draining passive tank for reducing agent > < Removing and installing control unit for reducing agent metering systemJ880