N-013-811-5 Genuine VW/Audi Sealing Washer

Genuine Fluid Fitting Sealing Washer

The N-013-811-5 Genuine VW/Audi sealing washer renews the sealing interface at the matched original fitting or sensor seat. Its 10 mm inside diameter and 13.5 mm outside diameter must match the connection being serviced. This listing supplies one individual washer; sensors, plugs and fluid lines are separate.

Technical Details

• Original part number: N-013-811-5.
• Inside diameter: 10 mm.
• Outside diameter: 13.5 mm.
• Function: sealing washer for the exact original fitting specified in the vehicle's parts diagram.
• Quantity supplied: one washer.

The washer creates its seal at the mating faces when the correct component is tightened according to the workshop procedure. A similar-looking ring can have a different seating diameter or profile and may not seal correctly. Match the complete part number rather than choosing only by vehicle name or appearance.

The factory hardware is used in several sealing locations across the vehicles listed below. A specifically cataloged application is the power steering pump pressure-sensor seal on the 2002 GTI 337 and 2003 GTI 20th Anniversary. Other engines or trims can use this part in a different location; confirm the original sensor, plug or fitting before ordering.

Common Reasons to Replace

• The original connection has been opened during sensor or fluid-system service.
• The washer is missing, distorted, split or scored.
• The sealing ring has been compressed during a previous repair.
• Fluid seepage has been traced to the mating sealing faces.
• A previous repair used a sealing ring of the wrong size.

A new sealing washer cannot repair a cracked housing, damaged threaded fitting or defective sensor. Inspect the complete connection and identify the source of leakage before replacing parts. Fluid near the fitting may have traveled from another component.

Installation and Service Notes

Follow the vehicle-specific repair procedure for the connection being opened, including pressure release and fluid handling where required. Remove the original seal, inspect and clean the mating faces, and position the new washer correctly before tightening.

Use the tightening specification for the exact sensor, plug or fitting. The washer's diameter alone does not establish torque. Do not overtighten to compensate for leakage, reuse a visibly damaged ring or stack additional washers. Inspect the serviced connection after restoring the system to its correct operating condition.

Fitment is tied to the original parts arrangement. Replacement pumps, sensors, oil pans or other assemblies can use a different seal, so confirm the hardware on the component currently installed in the vehicle.

Vehicle Fitment

Match the model year, engine and configuration below, then confirm the specific original sealing position by VIN or repair diagram.

The listed classic GTI 16V profiles apply to specified fuel-injection line unions, while the Corrado G60 profile applies to the assigned G-Lader sealing point. Replace a crushed or damaged washer during joint service and inspect the mating sealing faces if leakage persists.