May 11, 2020 · There’s one interesting dilemma that’s bugging certain BMW owners. More specifically, those who own a bimmer with an inline-six gasoline engine built from 2004 to 2015. We’re talking about the 2.5-liter and 3-liter legend that is the BMW N52 engine. There’s nothing wrong with the engine itself.

The BMW N52 is a naturally aspirated straight-6 petrol engine which was produced from 2004 to 2015. The N52 replaced the BMW M54 and debuted on the E90 3 Series and E63 6 Series. The N52 was the first water-cooled engine to use magnesium/aluminium composite construction in the engine block. [1] .

Feb 2, 2022 · There are a couple of mechanical differences between the two engines. The N51 featured a three-stage variable-length intake manifold instead of one, with a lower compression ratio from 10.7:1 to 10.0:1. The two engines also have different cylinder heads as BMW made changes to the combustion chamber.

Bmw 128i 2008 N51 Repair Manual Pictures of repair procedures and detailed instructions for the mechanics of the engines built into the vehicle. In addition, you will find manufacturer data and specifications for more precise repairs. Brand: BMW 1 (128i E82, 128i E88) and 3 Series (328i E90, 328i E92 and 328i E93).

Sep 16, 2015 · BMW used the three-stage intake manifold on the N51 to compensate for the slightly lower compression ratio as compared to the N52, 10.0:1 compared to 10.7:1. They are both rated at 230 horsepower. There are nine states that require the N51; California, New York, Maine, Massachusetts, Vermont, Connecticut, Rhode Island, Oregon and Washington State.

This page lists the N51B30M1 specifications for the engine built by BMW. Where listed, power output figures are based on the most powerful production variant of that engine, because some manufacturers use different engine maps to tune the same engine for better fuel economy, performance or to differentiate models in the range.

N51B30 weird failure, warped crankshaft? I bought a 2010 328i Sulev automatic car with locked engine. I tried turning the engine by hand and braker bar and it would not move.

Decided to service or overhaul your BMW gasoline straight-6 3.0 L N51 B30 A 231 HP engine by yourself? Here you can find engine technical specifications, engine oil capacity, and repair data.

V ehicles with N51 and those with N52 are nearly identical, However, there are several key areas where these engines differ. These California emission standards, which applied through model year 2003, were expressed using the following emission categories: ULEVs release emissions that are 50 percent cleaner than the current average year's models.

May 24, 2024 · The donor vehicle is a 2009 BMW E90 328i with the SULEV N51b30 and MSV80.1 ECU, and the recipient E30 is a '91 318is. Excuse the rats nest and mess!