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♦ Cracks or tears in belt profile and on reverse side (cracks, core
fractures, cross-sectional fractures)
♦ Layer separation (top layer, cord strands)
♦ Fraying of cord strands
♦ Foreign objects in belt profile and reverse side
♦ Excessive traces of oil and grease on rollers and pulleys
♦ Flank wear on pulleys (material wear, frayed flanks, surface
cracks); see -illustration-
– If faults are found: Renew components according to table (see
table of test values and procedure guidelines ⇒ page 75 ); refer
to Workshop Manual for procedure ⇒ Rep. gr. 13 ; Disman‐
tling and assembling engine; Removing and installing poly V-
belt .
Continue installation in reverse sequence.
Note
The illustration shows possible damage to the pulley. The ap‐
pearance of other types of material wear on the load-bearing
flanks of the ribbing can be different.
3.45 Spark plugs: renewing
6-cyl. petrol engine 2.8 ltr. FSI, 3.0 ltr. MPI, 3.2 ltr. FSI
⇒ page 76
8-cyl. petrol engine 3.7 ltr. MPI, 4.2 ltr. MPI, 4.2 ltr. FSI
⇒ page 78
10-cyl. petrol engine 5.2 ltr. FSI ⇒ page 80
12-cyl. petrol engine 6.0 ltr. MPI ⇒ page 83
3.45.1 6-cyl. petrol engine 2.8 ltr. FSI, 3.0 ltr.
MPI, 3.2 ltr. FSI
Special tools and workshop equipment required
♦ Spark plug socket and extension - 3122B-
Audi A8 2003 ➤
Maintenance - Edition 06.2014
76 3. Maintenance
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