Hi, new to here and first posting so a big hi to everyone.
I have recently acquired a S60r that has been very well maintained but it has recently started knocking. Starts fine, idles fine, its only when you rev it the engine knocks at higher revs. I do have a video but for the life of me I dont know how to upload it! And by the way, my R is the actual one that appeared on Top Gear! Feel free to ask me more as I realise it cant be diagnosed with just a few words. Thanks.