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Removing and installing passive tank for reducing agent > < Draining passive tank for reducing agent

A4 Mk3

Removing and installing transfer pump for reducing agentV436
Removing and installing transfer pump for reducing agent -V436-
Special tools and workshop equipment required
   
t  Hose clamps for hoses up to 25 mm -3094-
  W00-0079
t  Engine bung set -VAS 6122-
Removing
Observe safety precautions → Chapter.
Observe rules for cleanliness → Chapter.
  WARNING
Safety risk due to escaping reducing agent.
To prevent large amounts of reducing agent from escaping when the metering line is opened, wait until the reducing agent has been drawn back automatically → Anchor.
  Note
Hold a clean cloth under the separating point to catch escaping reducing agent.
  WARNING
Reducing agent can cause skin irritation.
t  Avoid contact with the skin and eyes. Wear gloves and safety goggles.
t  If your skin has come into contact with reducing agent, rinse it off with soap and water.
t  If reducing agent gets into your eyes, rinse them out with water for several minutes.
t  Do not breathe in or swallow reducing agent.
t  If you have swallowed reducing agent, rinse your mouth, drink lots of water and consult a paramedic or doctor immediately.
  W00-10435
–  Unscrew bolt -1- and remove cover -2- for transfer pump.
  A20-10708
–  Clamp off connecting hose -5- with hose clamp -3094-.
–  Press release tab and disconnect transfer line -1-.
–  Carefully detach connecting hose from connection at transfer pump for reducing agent -V436-.
–  Seal off open pipes/lines and connections with clean plugs from engine bung set -VAS 6122-.
–  Unplug electrical connector -3-.
–  Unscrew bolt -4- and detach transfer pump for reducing agent -V436--item 2- with rubber retainer.
Installing
Installation is carried out in the reverse order; note the following:
l  Tightening torques → Chapter „Active tank for reducing agent with attached components - exploded view“
  Note
Secure all hose connections with the correct type of hose clips (same as original equipment) → Electronic parts catalogue.
–  Adapt learnt value after draining reducing agent or renewing components → Chapter.
  A20-10664

Removing and installing passive tank for reducing agent > < Draining passive tank for reducing agent