A4 Sedan V6-3.2L (BKH) (2007)
material, identified by a light-colored bearing
or
‹› The same bearing, no allocation
‹› Check that retaining tabs are secured
‹› Do not interchange used bearing shells (mark)
‹› Radial clearance, measuring, refer to => [ Connecting Rod, Checking Radial Clearance ] See: Connecting Rod/Testing and Inspection
‹› When measuring radial clearance, tighten bolts => [ (Item 1) Connecting rod bolt - 30 Nm plus an additional 90° (/ turn) ] to 30 Nm but do not
turn further
4
Connecting rod
‹› Only replace as set
‹› Mark allocation to cylinder with paint - B - => [ Mark connecting rod ]
‹› When installing bearing cap, observe: The wide thrust flange - A - must point to the same side on connecting rod and connecting rod bearing
cap
‹› Installation position of connecting rod pairs => [ Connecting rod, installed location ]
5
Piston pin
‹› If tight, heat piston to 60 °C
‹› Removing and installing using a drift (VW 222 A )
6
Circlip
‹› Replace
7
Piston
‹› Installed position and allocation, piston/cylinder => [ Installed position of piston and piston/cylinder
allocation ]
‹› Arrow on piston face points toward belt pulley side
‹› Checking => [ Pistons, Checking ] See: Testing and Inspection
‹› Install with piston ring compressor
‹› Piston and cylinder dimensions, refer to => [ Piston and Cylinder Dimensions ] See: Specifications
‹› Cylinder bore, checking => [ Cylinder Bore, Checking ] See: Testing and Inspection
8
Piston rings
‹› Offset gaps by 120°
‹› Use piston ring pliers for removal and installation
‹› "TOP" marking or inscribed side must point to piston head
‹› Checking ring gap => [ Piston Ring Gap, Checking ] See: Piston Ring/Testing and Inspection/Piston Ring Gap, Checking
‹› Check piston ring groove clearance => [ Ring to Groove Clearance, Checking ] See: Piston Ring/Testing and Inspection/Ring to Groove
Clearance, Checking
Installed position of piston and piston/cylinder allocation