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Vanos Solenoid

Discuss your latest mods or ideas, and anything to do with the BMW X5 (E70).
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isq000
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Vanos Solenoid

Post by isq000 » Sat May 10, 2025 7:52 am

Hello ,

I was thinking about replacing the vanos solenoids, been looking for the right replacement's but it's real confusing sort of ment to be for e70 on the other hand there are different type of shapes ect. Hopping someone can lead me in right direction.

The x5 i have is e70 40d 2011

Thanks

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X5Sport
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Vanos Solenoid

Post by X5Sport » Sat May 10, 2025 2:41 pm

My understanding is that the N57 diesel engine isn’t fitted with Vanos. There are no parts referring to such in the parts database. I thought Vanos was only used on petrol engines. What are you looking at that is telling you your engine does have Vanos fitted?
:ant: Never anthropomorphise computers. They hate that.

isq000
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Vanos Solenoid

Post by isq000 » Sat May 10, 2025 3:08 pm

X5Sport wrote: Sat May 10, 2025 2:41 pm My understanding is that the N57 diesel engine isn’t fitted with Vanos. There are no parts referring to such in the parts database. I thought Vanos was only used on petrol engines. What are you looking at that is telling you your engine does have Vanos fitted?
Aghh ok, thats why am asking.My knowledge is limited and i learn as i go.

Came across this on net

Diesel Engines:

While many BMW engines, especially gasoline engines, have VANOS, it's also present in some diesel models like the 40d, according to a BMW website. 

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Vanos Solenoid

Post by X5Sport » Sat May 10, 2025 4:42 pm

It may depend upon which ‘40d’ equipped car they refer too. No mention on N57 or B57 (the later engine) for the X5 or X6. The M57 engine didn’t have it either. I’m not clear what purpose it would serve on a diesel as it’s compression ignition not spark. BMW use injection pulse control to adapt power levels to throttle demand and engine load. Given there’s naff all clearance between valve and piston crown on a diesel, having one still open at the wrong point would be catastrophic.
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isq000
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Vanos Solenoid

Post by isq000 » Sat May 10, 2025 5:54 pm

I see , thanks

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