N-910-845-01 Genuine VW/Audi DSG Filter Housing O-Ring

Genuine VW/Audi DSG filter housing O-ring, part number N-910-845-01. This original sealing ring fits the assigned transmission filter housing connection in the DSG arrangement below. It is supplied individually for renewal of the filter housing seal during the applicable transmission service.

Technical details

• Original number: N-910-845-01 / N91084501.
• Application: specified DSG transmission oil filter housing sealing ring.
• Confirmed arrangement below: seven-speed DQ381 DSG.
• One O-ring supplied. Filter element, filter housing, fluid, plugs and other seals are separate.

The ring forms the designated seal at the filter housing when installed in the correct groove and compressed by the original assembly. Correct size, cross-section and seating matter: a visually similar ring can fit poorly, become trapped or fail to seal the connection.

This is a filter housing seal rather than a drain-plug gasket or a complete DSG maintenance kit. The transmission has other sealing locations that require different parts. Match the original seal number and the actual filter housing before ordering.

Common reasons to replace

Renew an O-ring that is cut, flattened, stretched, hardened, distorted or damaged during removal of the filter housing. An old seal can be disturbed when the housing is opened for filter replacement, and its condition should be evaluated before reassembly.

A leak diagnosed at the filter housing connection may require a fresh seal after the housing and mating surfaces are inspected. Identify the actual source: nearby transmission lines, plugs and other sealing joints are separate service locations.

This ring is also a relevant service item when replacing the filter or repairing components that require the filter housing to be opened. Follow the factory renewal requirements for the actual transmission. A new O-ring cannot repair a cracked housing, damaged groove or worn transmission component.

Installation and service notes

Follow the factory procedure for the exact DSG transmission and filter arrangement. Vehicle position, fluid temperature, access sequence and level-setting requirements must be selected for that transmission rather than taken from a generic automatic-transmission procedure.

Keep dirt out of the open filter housing and fluid passages. Remove the old ring completely, inspect its groove and sealing contact surfaces, and clean the connection using the method permitted by the repair instructions.

Install the specified ring without excessive stretching, twisting or damage at an edge. Use only the preparation or lubricant prescribed for the seal. The pictured ring's color does not establish material composition or chemical compatibility.

Seat the filter and housing as directed by the factory procedure. Check that the seal remains in its assigned groove and is not trapped between incorrectly positioned components. Do not force a misaligned housing into place or substitute a ring intended for a drain plug.

Apply the factory tightening requirement for the actual filter housing. Do not transfer a torque from the transmission drain plug, an engine oil filter housing or an unrelated housing with a similar tool size. Renew additional parts wherever the procedure requires it.

Select the correct DSG fluid and filter separately for the vehicle. This seal does not establish fluid type, capacity or maintenance interval. Follow the prescribed filling and level-check procedure after any service that changes the fluid quantity.

After assembly, clean the surrounding area and complete the required leakage and operating checks. Investigate any leak remaining at the housing before returning the vehicle to service. This listing supplies one original sealing ring rather than a filter or maintenance package.

Fitment

Confirm N91084501 at the DSG filter housing connection before ordering. One O-ring supplied.