Just bought a 528i with this engine, going to make a video on it once I diagnose it, I’m going to link your video to mine so people can understand how these engines work.
If the valventric doesn't work, will the motor vibrate? When I unplug the ball joint, it works fine. When I plug it in, the motor vibrates. Does that mean I need to replace the valventric?
the camshaft is what actually opens and closes the valves as the engine runs. The eccentric shaft (and general Valvetronic system) merely determine how open the valve gets at maximum opening.
Thanks for clear videos. I'm buying used N52 , i chacked 4 used engines in and out of cars. wondering why all the 4 engines 4 or 5 cylinders had 30-40PSI compression but 1-2 cylinders 160-170PSI. i tried to turn the Valvetronic by hand and the result was still the same. 3 engines no oil but one with oil. still, i cannot understand was this broken engine or related to valvetronics or Vanos? any idea please?
No. This design has proven to be reliable, and working more than well in the intended way - low-load BSFC is among the best with BMW's engines equipped with this mechanism. Throttling the inflowing air is the dumbest way to adjust power output, as it creates a really useless and preventable loss. Complexity isn't bad in itself, it's only bad if it doesn't provide any advantage or if it is executed poorly and therefore reduces reliability. If it is executed well, and delivers the advantage aimed at, it still may cost a bit on top, but with any machinery used to convert power, an energy-conserving feature like this justifies it's additional cost by reducing the cost of fuel by burning less of it. And, for sure, it does! ... but, OTOH, I do have a drawer full of sketches and principles and stuff to be used on gas engines that, as I don't work engine development anymore, will remain there ... one slightly better valvetrain layout is among these, which would sometimes allow to not need a cam phasing device on the intake by providing a constant minimum distance between valve and piston - only being later than this might require one ... and even if there is one, it would be used far less, as with lower lift and shorter duration, in that case, comes earlier peak lift. Would BMW want, they could have this labeled as Valvetronic Mk.3 or so, but ... they didn't hire me, and ICE-development, sadly, won't be demanded anymore, at least not like it was the last 10...15 years.
This complicated technology made bmw the most unreliable vehicle in the auto industry. What's the point of having throttle body and valvetronic system. They do the same intended work. Worst is if vvt motor fail and throttle body works visa verse the computer put the whole in limp mode. This vvt system renders the throttle body used but at the same relies on th throttle body to control the intake air.
bro's a legend explaining in just 3 minutes with just an oral b toothbrush but the explanation is really clear and easy to understand
I'm not a mechanic, I don't even have a car, but my friend is educating me on this topic. Fascinating how well designed even engines are 🥰
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Speedkar i wished your shop was here in Atlanta so i could bring my X5 to you and you'll be my new mechanic, Great video!
Great video and explanation!
Great explanation, thanks!
Just bought a 528i with this engine, going to make a video on it once I diagnose it, I’m going to link your video to mine so people can understand how these engines work.
many than to you for your great explanations
Good lesson . you should be a Teck teacher!!!!!!
Thanks - maybe one day
@Bruce Kultgen You should be a spelling teacher!
@ dh1011 in my next life
@@brucekultgen132 Lol! Appreciate ya man!
Great break down once again, this is amazing technology. Thanks
Gracias SpeedKar99, siempre simple en toda enseñanza (Hizo falta alguna prenda de vestir de alguno de tu familia) 😁
If the valventric doesn't work, will the motor vibrate? When I unplug the ball joint, it works fine. When I plug it in, the motor vibrates. Does that mean I need to replace the valventric?
Very cool stuff. Thanks.
I wonder if BMW's got a patent registered for it,
Because you don't encounter that amongst other car brands
Do more in-depth Video about it
You forgot the magic word....... please?
Does the Allen screw adjust how much the valves open and close?do you have to turn the Allen a way ? To get it to normal spec. Thanks
Good video.... What is the role of camshaft in this valve tronic system?
Thanks.
the camshaft is what actually opens and closes the valves as the engine runs. The eccentric shaft (and general Valvetronic system) merely determine how open the valve gets at maximum opening.
If this system fails valves are open in minimum length . So how it can operate in fully throttle open becz valvs are slightly open ??
It will go into limp mode that you’ll be able to go 20 mph as I assume most car home limp mode goes up to 30
Thanks for clear videos. I'm buying used N52 , i chacked 4 used engines in and out of cars. wondering why all the 4 engines 4 or 5 cylinders had 30-40PSI compression but 1-2 cylinders 160-170PSI. i tried to turn the Valvetronic by hand and the result was still the same. 3 engines no oil but one with oil. still, i cannot understand was this broken engine or related to valvetronics or Vanos? any idea please?
What happens when the gears are damaged on the valvetronic shaft?
Engine change to normal thortal body
So would that then put the car in a limp mode per say?
Did you make a new channel?
💯👌
My only question not answered is why? Why not just have traditional throttle body only
He answered that. The VANOS system reduces pumping losses vs. a traditional throttle body.
@@lashlarue7924
Vanos is Bmw's variable valve timing whereas Valvetronic is variable valve lift, two different systems.
@@lashlarue7924 because you can essentially change cams as you're driving depending on what you're doing with the car with this system
Valvetronic allows greater efficiency because the valve lift is continuously variable.
With innovation, comes complexity. Too many moving parts for something not to go wrong.
No. This design has proven to be reliable, and working more than well in the intended way - low-load BSFC is among the best with BMW's engines equipped with this mechanism. Throttling the inflowing air is the dumbest way to adjust power output, as it creates a really useless and preventable loss. Complexity isn't bad in itself, it's only bad if it doesn't provide any advantage or if it is executed poorly and therefore reduces reliability. If it is executed well, and delivers the advantage aimed at, it still may cost a bit on top, but with any machinery used to convert power, an energy-conserving feature like this justifies it's additional cost by reducing the cost of fuel by burning less of it. And, for sure, it does!
... but, OTOH, I do have a drawer full of sketches and principles and stuff to be used on gas engines that, as I don't work engine development anymore, will remain there ... one slightly better valvetrain layout is among these, which would sometimes allow to not need a cam phasing device on the intake by providing a constant minimum distance between valve and piston - only being later than this might require one ... and even if there is one, it would be used far less, as with lower lift and shorter duration, in that case, comes earlier peak lift.
Would BMW want, they could have this labeled as Valvetronic Mk.3 or so, but ... they didn't hire me, and ICE-development, sadly, won't be demanded anymore, at least not like it was the last 10...15 years.
This is a 22 year old product now…
toothbrush is best presentation move ever
It works?
WTF? This must be a Dr. Suess invention!!!!
This complicated technology made bmw the most unreliable vehicle in the auto industry. What's the point of having throttle body and valvetronic system. They do the same intended work. Worst is if vvt motor fail and throttle body works visa verse the computer put the whole in limp mode. This vvt system renders the throttle body used but at the same relies on th throttle body to control the intake air.