So yea I was curious, the silver thing in the front of the engine....what exactly is that, ya know near the radiator fani circled the pic of it.......like Mine is making kinda a knocking noise? so can someone plz explain what it is, what's in it, what it does. and how much it costs to replace. or why it may be knocking, not loud. just when i rev it. Sometimes....
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Your Ride: 92' 525i
Yes both the timing chain and the VANOS unit are both located in there. Maybe the chain doesnt have enough lubrication on it and is dry?? Im not really to sure. This kind of quetion is best answered by c1apton
Last edited by Bimmer_5er; 08-24-2006 at 08:11 PM..
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and I notice it knocks def from there i checked, like after I rev the engine, it makes a knocking/vibration noise as it revs down from revving up. but it doesnt do it like ALL the time. im using max life sythetic oil btw if that makes a difference, but timing chain huh? i mean could a timing chain make that noise, and it's not something super serious like my pistons or cams making the knocking noise, or would i notice that more from up above the silver thing