Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Reducing Agent Delivery Module: Removing
- Always observe the safety precautions when working with reducing agent, refer to SCR SYSTEM SAFETY PRECAUTIONS .
-- Observe the safety precautions, refer to SAFETY PRECAUTIONS .
-- Follow the guidelines for clean working conditions, refer to CLEAN WORKING CONDITIONS .
-- Observe safety precautions when working on the selective catalytic reduction system, refer to SCR SYSTEM SAFETY PRECAUTIONS .
-- Drain the reducing agent tank, refer to REDUCING AGENT TANK, DRAINING .
-- Remove the lock washer and the trim panel.
-- Clean the area around the delivery module.
-- Disconnect the connectors -1- and -3-.
-- Release and disconnect the reducing agent line -2-. Disconnect the reducing agent line, refer to Figure.
-- To catch escaping reducing agent place a clean cloth under the separation point.
-- Seal all the open lines and connections with clean plugs from the Engine Bung Set VAS 6122.
-- Remove the bolts -arrows-.
-- Pry out the delivery module -5- from the opening -4- with a slotted screwdriver.
-- Remove the delivery module from the reducing agent tank.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.