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Table of tightening torques for installation:
Fastener
Tightening torque
[Nm]
Nut
2
The fuel filter is located on the underbody.
Removal steps:
– Remove underbody trim (centre) ⇒ General body repairs, ex‐
terior; Rep. gr. 66 ; Underbody trim; Removing and installing
underbody trim .
Step 1 - removing:
– Observe the safety precautions when working on the fuel sys‐
tem ⇒ Fuel supply system, diesel engines; Rep. gr. 00 ; Safety
precautions; Safety precautions when working on the fuel sys‐
tem .
– Remove nuts -1- and -3-.
– Swivel bracket -2- downwards, disengage it from mounting
points -arrows- and detach it.
– Remove rubber mountings -4-.
– Place drip tray under fuel filter.
– Use hose clip pliers to disconnect fuel supply hoses -1- and
-3- and detach fuel filter -2-.
Step 2 - installing:
Install in reverse sequence. Note tightening torques (see table of
tightening torques for installation
).
Flow direction is indicated by arrows on filter housing.
– Then bleed fuel system ⇒ Engine; Rep. gr. 23 ; Injection sys‐
tem; Filling/bleeding fuel system .
3.54
Fuel tank: adding fuel additive
Special tools and workshop equipment required
♦ Multi-purpose additive for petrol fuel - G 001 770 A2-
♦ Or: Multi-purpose additive for petrol fuel - G 001 780 M3-
Audi A8 2010 ➤
Maintenance - Edition 11.2014
126
3. Maintenance
