N55 Oil Starvation and Rod Bearing Replacement Services

BMW N55 Rod Bearing & Oil Starvation Fix | F30, M135i, M235i Solutions

Even BMW's non-M engines are not immune to rod bearing issues, but in the case of the N55 engine, the cause is slightly different. Found in models like the F30 335i, M135i, and M235i, the N55 suffers from a lack of baffling in the oil pan. This can lead to serious oil starvation issues—particularly when the car is driven hard or taken on track.

However, even daily-driven N55s can suffer from premature rod bearing wear over time. That's why rod bearing replacement is a must-do preventative maintenance item, regardless of your driving style. For those who do use their car on track or in spirited conditions, an upgraded sump baffle is essential to ensure reliable oil pressure under extreme load.

At Element Performance, we offer both:

✅ N55 Rod Bearing Replacement Service

• ACL bearings for enhanced durability

• OEM oil filter

• Sump gasket

• All new OEM replaceable bolts

• Labour included

• From £1145

🛠️ MMX Sump Baffle Installation

We recommend the MMX Sump Baffle by MMR to minimise oil surge and prevent oil starvation during high-performance driving. Unlike other designs, this baffle can be bolted in rather than welded—eliminating rust risks and avoiding the dangers of metal swarf.

This is a critical upgrade for any N55 taken on track, and highly recommended for anyone looking to preserve the long-term health of their engine.

📞 Contact our team today to book your service or learn more:
📧 info@elementperformance.co.uk
📞 01845 440443

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