Originally Posted by Rockit

I have a 2002 4.4

I bought the car about 8 months ago, I changed the oil when I got it to Lubo-Molly 5-40 syntech....what I thought was the best Germen oil to use. I bought a Mann filter.

About 3-4 months later I started to hear a slight lifter noise while idling or starting, that turned into a loud tap for 5 seconds when starting and that turned into a classic vanos rattle for 5 seconds when first stated intermittently.

I had the truck in the dealer for a some work, I had them change the oil....The vanos rattle was still there....then after about 2 weeks it went away....it's been about 3 weeks now and no noise at all on start up...The only thing I can relate it to is the BMW oil 5-30 sytech and a BMW filter....seems to work. The rattle would happen every other start so the oil definitely fixed or helped it.

If you have a vanos rattle try a factory filter and factory 5-30 oil and see what happens and give it 2-3 weeks...cheap enough.