Audi A8 2010 Maintenance Manual page 93

– Position puller - T40039- on thick rib at top of ignition coils and
detach all ignition coils from spark plugs one after the other in
direction of -arrow-.
– Unscrew spark plugs using spark plug socket and extension -
VAS 3122B- .
Step 2 - removing spark plugs, cylinder bank (left-side):
– Unscrew bolts -arrows- for connector rail.
– Release connectors for ignition coils and unplug all connectors
from ignition coils at the same time.
– Place connector rail slightly to one side. Make sure that wiring
is not kinked or damaged.
– Position puller - T40039- on thick rib at top of ignition coils and
detach all ignition coils from spark plugs one after the other in
direction of -arrow-.
– Unscrew spark plugs using spark plug socket and extension -
VAS 3122B- .
Step 3 - installing spark plugs:
– Install new spark plugs using spark plug socket and extension
- VAS 3122B- and tighten to specified torque (see table of
tightening torques for installation
– Fit all ignition coils loosely into spark plug apertures and align
with connectors of connector rail.
– Push ignition coils evenly onto spark plugs by hand (do not
attempt to knock in coils with any kind of tool).
– Align connector rail and plug all connectors onto ignition coils
so that they engage.
– Install connector rail, screwing in securing bolts to specified
torque (see table of tightening torques for installation
⇒ page 88 ).
Continue installation in reverse sequence.
Note
Different versions of air pipe are possible.
3.47.3 8-cyl. petrol engine 4.0 ltr. TFSI
Special tools and workshop equipment required
⇒ page 88 ).
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with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi A8 2010 ➤
Maintenance - Edition 11.2014
3. Maintenance
89