FOX 2004 ➤
3 - Cyl. injection engine - Edition 12.2009
Operation sequence
– Disengage 4-pole connectors from Ignition coil 1 with final
power stage -N70- , Ignition coil 2 with final power stage -
N127- and Ignition coil 3 with final power stage -N291-
-arrows-.
– Remove all ignition coils with the Puller -T10094- .
– Remove Spark plugs -Q- with Spark plug wrench -3122B- .
– Remove fuse 44 from injection valves.
– Check compression with the Cylinder compression meter -
gasoline/alcohol -VAG 1763- .
Note
How to handle the testing device is described in the respective
operation instructions.
– Operate starting motor until the testing device does not indi‐
cate any increase in pressure.
Compression value:
Engine prefix
Cylinder compression
Wear limit
BMD/CHFB
10.0 to 15.0
7,0
bar
bar
bar
Maximum compression differ‐
3,00
lk
ence between cylinders
– Install Spark plugs -Q- with Spark plug wrench -3122B- and
tighten to 30 Nm.
36
Rep. Gr.15 - Cylinder head, valve control mechanism
English 
