e39 540i Vanos. Because of some erratic rattling sound I opened up the engine to see if the guide rails were toast.

I have an e39 540i Vanos. Because of some erratic rattling sound I opened up the engine to see if the guide rails were toast. Everything including the Vanos is strong except for the upper tensioner on the Driver's sidelooks exactly as the one in the center of Fig. 11 above. The tensioner on that side is loose and moves from side to side. I cannot find a DIY to replace this. Is there a particular site where a DIY for this can be found?

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This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: BMW Camshaft Timing and Vanos Unit Installation

[Nick at Pelican Parts]

I would grab a repair manual. It will list the special tools and each step of the procedure. Give our parts

specialists a call: 1-888-280-7799 They will help you find what you need.

- Nick