Looking at a 2004 s4 with 147,000 on it. I asked him to send a video of a cold start and got this.https://m.youtube.com/watch?v=s5VvpBUftrs . My question is if that rattle is common and alright. I've read that there is a normal knock while starting for a couple seconds. Is that this noise? Or is the chain tensioner going? Thanks
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