N-900-672-02 Genuine VW/Audi Turbocharger Oil Feed Line O-Ring - 9.5 x 2.5 mm

Genuine VW/Audi turbocharger oil feed line O-ring, part number N-900-672-02. This original seal is used at the specified turbocharger oil supply connection on the confirmed configurations below. One O-ring is supplied.

Technical details

• Original number: N-900-672-02 / N90067202.
• Published nominal size: 9.5 x 2.5 mm.
• Application: specified turbocharger oil supply fitting seal.
• Single circular O-ring, as pictured.
• Oil line, fitting, bolt and other seals are separate.

The turbocharger receives engine oil through its supply line. This O-ring seals the assigned connection in that circuit. Correct seal selection and an undamaged mating fitting are necessary to contain oil at the joint.

Other connections in the same assembly can use separate sealing rings, washers or gaskets. Match the original number and exact fitting rather than choosing by color or approximate diameter. A published nominal size alone is not a substitute for the prescribed seal specification.

Common reasons to replace

Replace a disturbed seal when required during turbocharger removal, oil feed-line service or repairs that open the specified fitting. Inspect removed seals for cuts, flattening, hardening, deformation or damage caused by previous installation.

A seal that has been pinched, twisted or installed in the wrong position may not seal normally. Check the groove, fitting and line at the same time. Obtain the required replacement seal before reconnecting the oil supply rather than attempting to compensate with extra sealant.

Oil leakage near the turbocharger requires diagnosis of the complete supply and return circuit. A new O-ring cannot repair a cracked line, damaged fitting, blocked oil passage or a leak at another connection. Correct the diagnosed condition and inspect the mating components before assembly.

Installation and service notes

Follow the factory turbocharger oil-line procedure for the exact engine and fitting arrangement. Allow hot components to cool, control oil drainage as directed and keep debris out of the opened oil supply circuit.

Identify the seal position before disassembly. Remove the old O-ring without scratching its groove or mating surfaces. Inspect the fitting, line and seal seat for damage or contamination, then confirm original N90067202 for that connection.

Install the new seal according to the repair procedure. Observe the prescribed preparation or lubrication requirements for this specific seal; do not assume that a different oil-line gasket or O-ring uses the same installation method.

Align the line and fitting correctly before securing the connection. Ensure the O-ring remains properly seated and is not rolled, cut or trapped during assembly. Do not force a misaligned fitting together with its retaining fastener.

Follow the factory fastening sequence, tightening requirements and hardware renewal instructions for the connection. Additional torque or external sealant is not a substitute for an undamaged fitting and correctly installed seal.

After assembly, restore the required engine oil level and complete the prescribed turbocharger and oil-system checks. Confirm the serviced connection is free from leakage under the required operating conditions. This listing supplies one O-ring; obtain the remaining seals and oil-line components separately.

Fitment

Confirm the TSI engine, original oil-feed fitting and N90067202 seal position. One O-ring supplied.