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Originally Posted by imperyal

I have a F36 with the B47 190hp diesel... I'm guessing the maintenance is very similar.

But here in Europe the recommended oil change interval is 30,000Kms (~19,000 miles), I think that's ridiculous... I'm doing it more often, every 15,000Kms (~9,300 miles) or one year.

My car has EGR so I will do an intake inspection/cleaning very soon. My car has 115,000 miles. I think that's a good thing to do every 100,000 miles (more or less) on diesel EGR cars.

I had a N47 engine car before this one, my mechanic told me (showed me examples) that this engine has plastic flaps on the intake that fail. He told me that this failure usually happens at around 125,000 miles, but it is very dependent on the driving profile, is related to carbon buildup.

Anyone knows if the B47 maintenance has any gotchas to watch out for?

It depends which N47.
The later N47 in F chassis had the flaps as part of the intake manifold gasket set. It's super easy to change and don't fail like the old ones. Basically you change the gasket, it comes with new flaps.


The B47 has them part of the intake manifold which makes it a big pain.