What is the most common problem with BMW?

A common issue many BMW owners face is their vehicle overheating. While there are a number of factors in your vehicle that can contribute to this issue, including a coolant leak or a faulty water pump, a certified automotive technician will be able to help you pinpoint the problem.

Is sulev BMW good or bad?

SULEV stands for Super Ultra Low Emissions Vehicle. Having the SULEV spec is not a bad thing but certain components are different than standard N52 engines and you should be aware if you have an N51 engine.

What is N51 engine?

The N51 engine is a SULEV version of the N52 that was sold in parts of the United States that had SULEV legislation. Differences to the N52 versions include a variable-length intake manifold (“DISA”) with three stages instead of one, and a compression ratio lowered from 10.7:1 to 10.0:1.

Is the N52 engine reliable?

The engine even won top 10 best engines in both 2006 and 2007. However, the N52 still has its fair share of common reliability problems. We’re going to address the 7 most frequent engine issues the N52 experiences. Due to the engine design, the N52 has proved more reliable than it’s bigger brother, the N54.

Do BMW have engine problems?

Although we believe BMW’s are reliable cars there are a few primary issues that plague a vast majority of all BMW’s and BMW engines. A lot of these problems start to develop somewhere in the ballpark of 80,000-120,000 miles.

How do I know if I have an N51 or N52 BMW 6 cylinder engine?

Cylinder Head Cover – The cylinder head cover on N52 is made of magnesium while the one on N51 is made of plastic and has integrated crankcase ventilation. Intake Manifold – The intake manifold on N52 is plastic with a 3-stage DISA valve on more powerful versions.

Which is better N51 or N52?

Which Engine is Better – The N52 or N51? There’s a lot of noise being generated around these two engines as people are trying to figure out which one is better. Power-wise, there isn’t much difference. Both are tuned to deliver the same power and torque.

What cars have N51 engines?

If your E82 128i, E90 328i, or E92 328i was originally purchased in California, Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Washington state, and Washington D.C. it will most likely come with the N51 SULEV engine.

Do I have an N51 or N52?

The easiest way to identify which engine you’re dealing with is to take a gander at the vehicle emissions plate under the hood. You’ll notice the relevant info on the left-hand side of the plate in the third row. N52 will be marked as LEV, while the N51 carries a SULEV tag.