Genuine VAG Sealing Washer / Sealing Ring N0138495

Genuine VAG Sealing Washer / Sealing Ring N0138495 - OEM Engine Sealing Ring

The Genuine VAG Sealing Washer / Sealing Ring N0138495 is the factory-specified sealing hardware for fluid-tight joints on Volkswagen Audi Group engines. Every time an oil drain plug, banjo bolt, or threaded boss is opened during servicing, this small OEM ring is what stands between a dry engine bay and a slow, comeback-causing weep. Reused or wrong-profile rings are one of the most common causes of post-service leaks. Fitting the genuine N0138495 at every service means the joint seals first time, at the correct torque, with no sealant and no guesswork.

What the N0138495 Sealing Ring Does

The N0138495 sits between the fastener head and the machined joint face at fluid-carrying connections on VAG engines. When the plug or bolt is tightened to specification, the ring compresses slightly and fills the microscopic gaps between the two metal faces. That controlled compression is what makes the joint fluid-tight: oil, coolant, or fuel cannot migrate past the seal. Because the ring is deformed in the process, it is a single-use part — every opening of the joint calls for a new genuine ring.

Signs a Sealing Washer Is Failing

The classic symptom is a weeping drain plug after an oil change: a fresh oil film around the sump plug, a single drip on the undertray, or a slow dipstick drop that consumption alone cannot explain. Leaks at banjo unions show as dampness around fuel or oil feed lines — often smelled before they are seen. In almost every case the cause is a reused or incorrect ring: the old washer was already crushed and cannot compress a second time. Re-torquing the plug to stop the leak only damages the threads.

Why the Genuine VAG Ring Matters

Generic sealing rings are sold as fitting everything, which means they fit nothing precisely. The genuine N0138495 is produced to the factory profile for the joint it seals: the correct thickness, inner and outer diameter, and crush behaviour for VAG engine hardware. That matters because an over-thick ring leaves the fastener short of thread engagement, while an under-thick ring cannot fill the joint gap. The genuine ring also follows the factory material specification, so it will not corrode against the aluminium sump or steel plug it sits between.

Fitting Notes for Technicians

Always fit the new ring with the plug or bolt torqued to the factory specification — never compensate for a tired ring with extra torque, as that strips threads and distorts the sump. Clean both mating faces before assembly; a grain of grit trapped under the ring is a ready-made leak path. For crush-type rings, fit once and do not reuse: removal flattens the sealing profile permanently. If a joint still weeps after correct torque with a new genuine ring, the seating face itself is damaged and needs attention — not a thicker washer.

Specifications

Genuine vs Aftermarket Comparison

Verification note: Brand, OE part number, and part type verified against the live store listing at europeanautospares.com/products/genuine-bentley-washer-n0138495 (accessed 2026-10-08). Generic ring behaviour described from common aftermarket fitment issues reported by service workshops.

Why Choose European Auto Spares

Genuine VAG Sealing Hardware

The N0138495 comes from the Volkswagen Audi Group parts system under its OE number — not a bulk-bin lookalike. Ordering by OE number gets you the ring the factory specified for the joint.

Small Part, Large Leak Risk

This ring protects against oil leaks, comeback jobs, and thread damage from over-torquing. It is the cheapest insurance policy on any engine service.

VIN-Verified Before Dispatch

Small hardware varies across the VAG range by model year and production split. Send your VIN and we confirm the correct application before the part ships.

UAE-Based Supply in AED

Order from European Auto Spares in the UAE with transparent AED pricing and local parts support — no cross-border guesswork for a critical service part.

Pair It With Your Service Items

Add filters and service hardware in the same order so the vehicle goes back on the road in one visit, with every joint sealed correctly.

Complete the Job

Sealing washers should be renewed, not reused — stock the Genuine Ferrari & Maserati Copper Sealing Washer (14×20×1.5mm) 10280060 copper washers for oil and fuel fittings, and pair with the Genuine Bentley Continental Bentayga Oil Filter 07P115562B oil filter at service time. Small hardware like this lives in the Engine Parts collection.

Need Help Finding the Right VAG Sealing Hardware?

Sealing hardware varies across the VAG range — the same engine family can use different rings at different service points. Send us your complete 17-character VIN before ordering, and our parts team will confirm that the N0138495 is the correct ring for your vehicle and application. A two-minute VIN check now prevents a leaking joint — or a second order — later.

Seal It Right, the First Time

Post-service weeps are almost always a sealing-ring problem, and almost always avoidable. Fit the Genuine VAG Sealing Washer / Sealing Ring N0138495 at every service, torque to specification, and keep every engine joint dry. Order from European Auto Spares and service with confidence.