hi there i brought my mk1 octavia auq last year and recently it started to make a loud rattle/knocking noise when running the noise seemed to come from the cambelt area so brought a cambelt and waterpump,checked the history  and it was well overdue so stripped it down and noticed the water pump was leaking and was noisy and also the roller on the hydraulic tensioner was noisy when spun so figured that was the cause,took me ages getting it back in time as kept jumping whilst fitting the belt but got there in the end, put it all back together and run it, seemed ok still a bit of a rattle but went quiet after a couple of minutes now when blipping the throttle there is a rattle noise it also makes the noise when pulling off could a new timing belt cause the tensioner to weaken? ive checked online and read about vcds cam timing check and my results are below any ideas?

thankyou

Here's a video of the noise when cars under load can only just hear it over the sound of the intake/exhaust but alot louder in the car 

Did you replace the hydraulic tensioner? Wasn't quite clear in your first post?

22 hours ago, SuperbTWM said:

Did you replace the hydraulic tensioner? Wasn't quite clear in your first post?

No I didn't replace the hydraulic tensioner on cambelt side only the roller as didn't come in the kit and seemed in good condition etc  just ordered all parts to change the chain and chain tensioner and also gonna drop sump and clean the pickup pipe out 

At the dealer they were never considered a consumable item I don’t think which is why they don’t come as part of the kit, a bit like how a water pump is like an optional extra to replace. 
 

It is wise to change the belt tensioner/damper as they do fail but if it wasn’t leaking oil and you tested it still had its damping abilities, it will probably be fine. Obviously if the seals go you lose the damping effect and the tensioner bounces about and could lead to belt failure. I’m not sure they opted for this kind of tensioner rather than the conventional one. 
 

I can’t seem to view your video on my phone but you are probably looking at the chain of it’s a rattle. Never had to touch that side in the past though