Audi Workshop Service and Repair Manuals

Crankshaft - exploded view of components

When carrying out repairs, secure engine to engine and gearbox support -VAS 6095- → Chapter.

1 -

9 Nm

q	Tighten in stages and in diagonal sequence

2 -	Sealing flange (pulley end)

q	Renewing → Chapter

3 -

Seals

q	Different versions available → Electronic parts catalogue

q

Renew

4 -	Crankshaft

q	Measuring axial clearance → Chapter

q	Measuring radial clearance → Chapter

q	Do not rotate the crankshaft when checking the radial clearance

q	Crankshaft dimensions → Chapter

5 -	Dowel sleeve

q

4 x

q	Inserting in retaining frame → Fig.

6 -	Retaining frame

q	To remove, detach guide rail → Item for drive chain for valve gear

q	Applying sealant → Fig.

q	Tightening sequence for securing bolts → Fig.

7 -

Bolt

q	For sealing surfaces: cylinder block/retaining frame

q	Differing bolt lengths and bolt heads

q	Tightening sequence → Fig.

8 -	Bolt (long, large collar)

q	For retaining frame (inner row)

q	Tightening sequence → Fig.

9 -	Bolt (short, small collar)

q	For retaining frame (outer row)

q	Tightening sequence → Fig.

10 -	Thrust washer

q	Only fitted on 3rd crankshaft bearing

q	Oil grooves face outwards

q	Make sure it engages in retaining frame

q	Measuring axial clearance of crankshaft → Chapter

11 -	Bearing shell

q	For retaining frame (without oil groove)

q	Do not interchange used bearing shells (mark positions)

q	Note installation position

q	Install new bearing shells for retaining frame with correct coloured markings → Fig.

12 -	Centralising disc

q	For vehicles with automatic gearbox 09L → Fig.

13 -	Thrust washer

q	Only fitted on 3rd crankshaft bearing

q	Oil grooves face outwards

q	Make sure it engages in retaining frame

q	Measuring axial clearance of crankshaft → Chapter

14 -	Bearing shell

q	For cylinder block (with oil groove)

q	Do not interchange used bearing shells (mark positions)

q	Note installation position

q	Install new bearing shells for the cylinder block with the correct coloured markings → Fig.

15 -	O-ring or seal

q	Depending on version → Electronic parts catalogue

q

Renew

16 -	Cylinder block

Centralising disc for drive plate on vehicles with automatic gearbox 09L   Note In vehicles with automatic gearbox the drive plate is bolted to the crankshaft with a centralising disc -arrow-.

Applying sealant to retaining frame, position of dowel sleeves –  Clean sealing surfaces, they must be free of oil and grease at top and bottom. –  Apply the beads of sealant -arrows- onto the clean sealing surfaces of the retaining frame as illustrated. l  The groove on the sealing surface must be completely filled with sealant. l  The beads of sealant must project 1.5 … 2.0 mm above the sealing surface. –  Fit seals -1 … 3-.   Note On some versions the seals -2- and -3- are connected together. –  Check that dowel sleeves -4 ... 7- are inserted in retaining frame at positions shown in illustration.

Installing retaining frame –  Renew bolts -1 … 16- for retaining frame. –  Install long bolts in inner row on retaining frame. –  Tighten bolts -1 … 31- in 3 stages as follows: 1.  Tighten bolts in the sequence -1 ... 16- to 50 Nm. 2.  Turn bolts 90° further in the sequence -1 ... 16-. 3.  Tighten bolts for sealing surfaces (retaining frame / cylinder block) in the sequence -17 ... 31- to 23 Nm.

Matching crankshaft bearing shells to bearings in cylinder block t  Bearing shells of the correct thickness are matched to the bearings in the cylinder block at the factory. Coloured dots on the side of the bearing shells are used to identify the bearing shell thickness. t  The allocation of the bearing shells to the bearing positions in the cylinder block is indicated by a code letter at the relevant bearing on the retaining frame. To engine No. AUK 028 000 or BKH 033 000: For engines up to engine number AUK 028 000 or BKH 033 000, please note that on bearing No. 1 (front) the code letters on the retaining frame and the corresponding colour codes for the bearing shells are not the same as for the other bearings:

Bearing No.	Code letter on retaining frame		Colour coding of bearing
1	G	=	Red
	B	=	Yellow
	S	=	Blue
2 … 4	G	=	Yellow
	B	=	Blue
	S	=	Black

From engine No. AUK 028 001 or BKH 033 001:

Code letter on retaining frame		Colour coding of bearing
R	=	Red
G	=	Yellow
B	=	Blue
S	=	Black

Matching crankshaft bearing shells to bearings in retaining frame t  Bearing shells of the correct thickness are matched to the bearings in the retaining frame at the factory. Coloured dots on the side of the bearing shells are used to identify the bearing shell thickness. t  The allocation of the bearing shells to the bearing positions in the retaining frame is indicated by a sequence of letters on the flywheel flange on the crankshaft. The first letter in the sequence stands for bearing “1”, the second letter for bearing “2”, etc. To engine No. AUK 028 000 or BKH 033 000: For engines up to engine number AUK 028 000 or BKH 033 000, please note that on bearing No. 1 (front) the code letters on the crankshaft and the corresponding colour codes for the bearing shells are not the same as for the other bearings:

Bearing No.	Letter on crankshaft		Colour coding of bearing
1	G	=	Red
	B	=	Yellow
	S	=	Blue
2 … 4	G	=	Yellow
	B	=	Blue
	S	=	Black

From engine No. AUK 028 001 or BKH 033 001:

Letter on crankshaft		Colour coding of bearing
R	=	Red
G	=	Yellow
B	=	Blue
S	=	Black