Audi Workshop Service and Repair Manuals

Removing and installing particulate filter Special tools and workshop equipment required

t  Hook -2024 A /1- of lifting tackle -2024 A-

Removing   Note Fit all cable ties in the original positions when installing. –  Remove engine cover panel -arrows-.

–  Remove Lambda probe -G39- → Rep. gr.23. –  Remove exhaust gas temperature sender 3 -G495- → Chapter. –  Remove exhaust gas temperature sender 4 -G648- → Chapter. –  Remove radiator cowl → Chapter. –  Remove coolant pipes (right-side) → Chapter. –  Remove heat shield for tunnel → Rep. gr.66. –  Remove front wheel housing liner (right-side) → Rep. gr.66.

–  Release hose clips -1- and -2- and remove air hose. –  Seal off open pipes/lines and connections with clean plugs from engine bung set -VAS 6122-.

Vehicles with air conditioning: –  Remove poly V-belt: t  → Chapter „Removing and installing poly V-belt - vehicles with air conditioner compressor and tensioner“. t  → Chapter „Removing and installing poly V-belt - vehicles with air conditioner compressor and tensioning roller“. –  Remove bolts -arrows-. –  Loosen hose clip -2-. –  Unplug electrical connector -1- on charge pressure sender -G31-/intake air temperature sender -G42- and move clear electrical wiring. –  Detach air pipe (right-side).

–  Unplug electrical connector -2- on air conditioner compressor regulating valve -N280-.   Caution Make sure that air conditioner compressor and refrigerant pipes and hoses are not damaged. Do NOT stretch, kink or bend refrigerant lines and hoses. –  Remove bolts -arrows-, detach air conditioner compressor -1- with pipe/hose assemblies connected and tie up to front.

All vehicles (continued): –  Remove bolt -1-. –  Slacken bolt -2- and remove clamp.

–  Unplug electrical connector -3-. –  Unscrew bolt -2-, detach pressure differential sender -G505- and move clear hoses -1-.

–  If fitted, remove bolts -arrows- and detach heat shield for drive shaft (right-side). –  Unbolt drive shaft (right-side) from gearbox flange.

WARNING Risk of accident. Do NOT loosen bolted connection -1-. –  Remove bolts -top arrows-.   Note Disregard -bottom arrow-.

–  Press engine/gearbox assembly towards lock carrier and support using extension -2024 A /1-, as shown in illustration.   WARNING Accident risk from loose components of support bracket. Secure retaining pin with locking pin -arrow- and extension -2024 A /1- with bolt -1- for pendulum support.

–  Unscrew nuts -arrows- for swivel joint (right-side). –  Detach swivel joint (right-side) from wishbone.

–  Pivot drive shaft (right-side) towards the front. –  Tie up drive shaft to longitudinal member -arrow-.   Note Take care not to damage the surface coating of the drive shaft.

–  Remove bolts -1- and nuts -2- and detach bracket for particulate filter.

–  Pull particulate filter off mountings -arrows- and detach to the right. Installing Installation is carried out in the reverse order; note the following: l  Tightening torques → Chapter „Silencer - exploded view“   Note Renew gaskets, self-locking nuts and clamp for particulate filter.

–  Note sequence when installing particulate filter:

1.	Fit particulate filter to turbocharger, attach clip -1- without tightening
2.	Loosely screw in nuts -2, 4- and bolts -3, 5- by hand l  It must still be possible to move particulate filter and bracket
3.	Tighten clamp -1-
4.	Tighten nuts -2, 4-
5.	Tighten bolts -3, 5-

–  Install pendulum support → Rep. gr.34. –  Install drive shaft (right-side) and swivel joint → Rep. gr.40. –  Install heat shield for drive shaft → Anchor. –  Install air conditioner compressor → Rep. gr.87. –  Install poly V-belt: t  → Chapter „Removing and installing poly V-belt - vehicles with air conditioner compressor and tensioner“. t  → Chapter „Removing and installing poly V-belt - vehicles with air conditioner compressor and tensioning roller“. –  Install air pipe → Chapter. –  Install air hoses with screw-type clips → Fig.. –  Install front right wheel housing liner → Rep. gr.66. –  Install heat shield for tunnel → Rep. gr.66. –  Install coolant pipes (right-side) → Chapter. –  Install radiator cowl → Chapter. –  Install exhaust gas temperature sender 4 -G648- → Chapter. –  Install exhaust gas temperature sender 3 -G495- → Chapter. –  Install Lambda probe -G39- and pressure differential sender -G505- → Rep. gr.23. –  Align the exhaust system so it is free of stress → Chapter. –  After renewing particulate filter, perform "Adaption" in Guided Functions mode using → Vehicle diagnostic tester.