Removing And Installing Pistons - Audi A8 2003 Workshop Manual

8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
Marking conrods
Note
Only renew conrods as a complete set.
♦
Do not interchange conrod bearings.
♦
– Prior to removal, use a coloured pen to mark pairing of conrods
with conrod bearing caps and cylinder allocation -arrows-.
Conrod installation position
• Lugs on castings -arrows- are located as shown in illustration.
5.2

Removing and installing pistons

Special tools and workshop equipment required
♦ Drift - VW 222 A-
♦ Piston ring clamp, commercially available
Removing
• Engine secured to engine and gearbox support - VAS 6095-
⇒ page 38 .
– Remove cylinder head
– Remove upper section of sump
– Mark installation position and matching of conrod bearing caps
to cylinder and to conrods for reinstallation
– Unbolt conrod bearing caps.
– Pull out pistons upwards with conrods.
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
⇒ page 156 .
⇒ page 198 .
⇒ page 101 .
5. Dismantling and assembling pistons and conrods
Audi A8 2003 ➤
101