SEAT Workshop Service and Repair Manuals

Sealing flange (gearbox side): replace t  Removing the sealing flange with the sender wheel → Anchor t  Fitting the sealing flange with the sender wheel → Anchor t  Assembly: → Anchor t  Tightening torques → Anchor

Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.

Special tools and workshop equipment required

t	Centre guide -T10134-, see equivalent → Anchor

t	Torque wrench -VAG 1331-, see equivalent → Anchor.

t	Wrench e/c 24 -VAG 1332/11-, see equivalent → Anchor

t	Depth gauge

t	Bolt M6 x 35 (3 units)

t	Bolt M7 x 35 (2 units)

Removing the sealing flange with the sender wheel l  Gearbox removed. –  Remove the dual mass flywheel → Chapter.

–  Unhook intermediate plate on sealing flange and on the dowel sleeves -arrows-.

–  Rotate crankshaft by turning bolt for toothed belt sprocket until crankshaft is positioned at „TDC“, as shown in illustration.

–  Remove the engine speed sender -G28--1- using a (standard commercially available) joint neck wrench.   Note Disregard: -Pos. 2-. –  Remove sump → Chapter.

–  Unscrew the attachment bolts -1 … 6- from the sealing flange.   Note

The sealing flange is inserted along with the crankshaft sender wheel. –  For the reverse order: Turn the 3 M6x35 bolts maximum 1/2 rotations in the sealing flange -arrow- one after another. –  Remove sealing flange together with sender wheel. Fitting the sealing flange with the sender wheel   Note t  The sealing flange with the PTFE seal is fitted with a pressure ring on the sealing lip. This support ring serves as a fitting sleeve and must not be removed prior to installation. t  Once unwrapped, do not separate the sealing flange and the sender wheel or modify the position. t  The sender wheel finds its position automatically when fitted to the position pin of the centre guide -T10134-. t  The sealing flange and the seal make up one inseparable component and can only be replaced along with the sender wheel. t  The centre guide -T10134- is held in its installation position for the crankshaft by a guide pin which is inserted into a hole on the crankshaft.

Structure of the centre guide -T10134- A -  Attachment surface B -  Conical hexagon bolt C -  Installation bell D -  Locating pin E -  Hexagon socket head bolt F -  Guide pin for diesel engines (black handle) G -  Guide pin for diesel engines (black handle)

A - Mount the sealing ring with sender wheel in the fitting device -T10134-. –  Tighten the hexagonal nut -B- to just before the threaded spindle attachment surface -A-.

–  Fix the fitting device -T10134- holding it in place in a bench vice, to the threaded spindle surface -B-. –  Press down on the installation bell -C-, so that it rests -arrow- on the hexagonal bolt -B-.   Note Inner part of assembly device and assembly housing must be level with each other.

–  Unscrew the attachment clip -arrow- from the new sealing flange.   Note Do not remove the sender crown from the sealing flange or change its position.

l  Locating hole -A- on sender wheel -C- must align with marking -B- on sealing flange. –  Place the sealing flange (with the front side downwards) on a clean flat surface.

–  Press the sealing lip pressure ring -A- in the -direction of the arrow- downwards until it rests on the flat surface.

l  The upper edge of the sender wheel and the front edge of the sealing flange must align -arrows-.

–  Place the front of the sealing flange on the fitting device -T10134-, so that the fastener -B- sits into the hole -A- in the sender wheel.   Note Ensure that the sealing flange presses completely on the fitting device.

–  Tighten the sealing flange and the sealing lip pressure ring -B- while tightening the three knurled bolts -A- on the surface of the fitting device -T10134- so that the fastener cannot come out of the hole in the sender wheel.   Note Ensure that the sender wheel remains secured in the fitting device when fitting the sealing flange.

B - Fit the fitting device -T10134- with the sealing flange on the crankshaft flange: l  The crankshaft flange must be free of oil and grease. l  The engine is in TDC of cylinder 1. –  Screw the hexagon nut -B- to end of threaded spindle. –  Press the threaded spindle on the centre guide -T10134- in the -direction of the arrow- until the hexagonal nut -B- sits on the installation bell -A-. –  Point the flat part of the installation bell towards the sealing surface of the engine block towards the oil sump.

–  Secure centre guide -T10134- to crankshaft flange by screwing hexagon socket head bolts -A- approx. 5 threads into crankshaft flange.

–  Screw in the 2 bolts M7×35 -A- on the engine block to guide the sealing flange. C - Fit the Fitting device -T10134- on the crankshaft flange:

–  Move the installation bell -C- by hand in the -direction of the arrow- until the sealing lip pressure ring -B- sits on the crankshaft flange -A-. –  Insert the guide pin for diesel engines (black handle) -D- into the crankshaft hole. In this way, the final fitting position of the sender wheel is established.   Note The guide pin for petrol engines (red handle) -F- cannot be inserted into the threaded hole. –  Tighten the Allen bolts of the fitting device by hand. –  Screw hexagon nut -E- onto threaded spindle by hand until it lies on assembly housing -C-. D - Press the sender wheel with the fitting device -T10134- on the crankshaft flange:

–  Tighten the hexagon nut of the installation device -T10134- using the torque wrench -VAG 1331- and the 24 mm tool insert -VAG 1332/11- to 35 Nm.   Note A small air gap must be present between cylinder block and sealing flange after tightening hexagon nut to 35 Nm. E - Check the fitting position of the sender wheel on the crankshaft.

–  Screw the hexagon nut -E- to end of threaded spindle. –  Unscrew the 2 bolts -A- of the engine block. –  Unscrew the knurled bolts -B- from the sealing flange. –  Remove the centre guide -T10134-. –  Remove sealing lip support ring.

l  The sender wheel is positioned correctly on the crankshaft if the distance -a- between the crankshaft flange -A- and sender wheel -B- is 0.5 mm.

–  Fit the dial calliper onto the crankshaft flange. –  Measure the distance -a- between crankshaft flange and sender wheel. If distance -a- is too small: –  Press once more on the sender wheel → Anchor. If distance -A- is attained: –  Carry out the remaining installation operations → Anchor. F - Rectify the position of the sender wheel

–  Secure the fitting device -T10134--A- to the crankshaft flange; to do so, tighten the Allen bolts by hand –  Push assembly tool -T10134- against the sealing flange by hand.

–  Screw hexagon nut -E- onto threaded spindle by hand until it lies on assembly housing -C-.

–  Tighten the hexagon nut of the installation device -T10134- using the torque wrench -VAG 1331- and the 24 mm tool insert -VAG 1332/11- to 40 Nm. –  Check the fitting position of the sender wheel on the crankshaft once more → Anchor. If the dimension -a- is once again too small: –  Tighten the hexagonal bolt of the centre guide -T10134- to a torque of 45 Nm. –  Check the fitting position of the sender wheel on the crankshaft once more → Anchor. Assembly

–  Screw in the new securing bolts -1 ... 6- of the sealing flange alternatively in the diagonal sequence.

–  Screw on the engine speed sender -G28--1-. –  Install sump → Chapter.

–  Fit intermediate plate on sealing flange and push onto dowel sleeves -arrows-. –  Install the dual mass flywheel → Chapter. Tightening torques

Component		Nm
Sealing flange to cylinder block		15 → Remark
Engine speed sender -G28- to the engine block		5

1)  Tighten alternatively diagonally