Original BMW Oil Cooler Line O-Ring 13.25 x 2.5 mm for BMW 328d, 535d, 740Ld xDrive, and X5 xDrive35d (2014–2018)

Sized at 13.25 x 2.5 mm, this Original BMW O-ring seals an engine oil cooler line connection on the diesel BMW 328d, 535d, 740Ld xDrive, and X5 xDrive35d built from 2014–2018. Oil cooler lines carry hot oil away from the engine to the cooler and return it once it has been cooled. Each joint in those lines depends on an O-ring to keep pressurized oil from escaping. An O-ring is a round elastomer seal that compresses into its groove when the fitting is tightened. Because the lines and their fittings are a common place for leaks to appear, inspect them for seepage or deformed seals during service. The ring weighs 1 gram and is made in Portugal.

Original BMW Parts carry a 24-month parts warranty.

BMW has produced this O-ring since March 2010, and its size makes it easy to tell apart from neighboring seals. BMW lists its size as 13.25 x 2.5 mm. Compare that figure with the ring you remove. BMW applies this part to the N47N four-cylinder and the N57N and N57Z six-cylinder diesel engines. It is sold as a single ring, so count the joints you are opening and order to suit.

Technical Details

• Manufacturer: BMW
• Part number: 17-22-8-511-461
• BMW part name: O-ring
• Size: 13.25 x 2.5 mm
• Weight: 1 g (0.04 oz)
• Production start: March 2010
• Engines: N47N, N57N, and N57Z diesel
• Made in Portugal
• Sold individually
• Warranty: 24 months

Common Questions

Will this fit a gasoline 328i or 535i?
No. BMW applies this O-ring only to the N47N and N57 diesel engines.

How many come in an order?
One. It is sold as a single O-ring.

Where is it made?
This Original BMW O-ring is made in Portugal.

Fitment & Compatibility

Use the fitment table below to confirm the exact year, make, model, submodel, and any application notes before ordering. Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.