BMW N54 vs N55 vs B58 vs S55: Performance & Reliability
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BMW N54 vs N55 vs B58 vs S55: Performance & Reliability

Ever since the twin-turbo N54 hit the market in the 2007 BMW 335i, BMW has been building on the design of the turbocharged, direct-injected inline 6 engine. In 2010, the 335i received the updated N55 engine followed by the B58 in 2016, however, the model was rebranded to the 340i. Unsurprisingly, the success of the…

The 5 Most Common BMW N55 Engine Problems – Failures & Performance Problems

The 5 Most Common BMW N55 Engine Problems – Failures & Performance Problems

For those in the market looking to purchase a BMW 135i, 335i, or 535i one important aspect to consider is reliability. In this post, we intend to highlight the most common N55 engine problems; please keep in mind – this is not an exhaustive list of every single potential problem. All cars and engines will…

BMW N54/N55 E-Series Electric Water Pump Replacement DIY (Video)

BMW N54/N55 E-Series Electric Water Pump Replacement DIY (Video)

Signs of N55 Water Pump Failure: Engine overheating significantly – usually rapid over-heating once the pump fails Cooling Fan running full speed (noisy) Coolant boiling out of coolant cap N55 CEL Codes for Failing Water Pump: 2E81, 2E82, 2E83, 2E84, 2E85 377A Remember to check fuses Replacement Part Water Pump for E-series N55 – $389…

BMW N54 vs. N55 Comparison: Horsepower, Reliability, and Tune-ability
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BMW N54 vs. N55 Comparison: Horsepower, Reliability, and Tune-ability

Before purchasing a turbocharged 135i, 335i or 535i it is important to consider the differences between the N54 and N55-powered BMWs. The N54 began production in 2006 and first appeared in the 2007 BMW 335i; in 2008, the N54 was introduced along with the 135i and 535i. BMW’s N55 engine began production in 2009 and…