My car has couple of noises that are bugging me, they are not that big but they do annoy. I was hoping someone knows what they might be.
First of all, my car idles very smoothly and quietly. But when I push to accelerate, the engine note becomes very "rattly". If I keep it slow, it doesnt do it. Its most noticeable when engine is cold and during low gears when boost is building up. When acceleration is continued to higher revs, I cant hear it anymore. Its easy to notice. Noise is not from intake or HPFP, because these I have changed recently. Also, I dont think its the camchain because my car is BWA and the symptoms for that are quite specific and dont really match. Noise cannot be heard during idle ever, cold or hot engine. If I could only get this noise during idle, I would be able to identify where its coming from.. But since there is no dyno near me where I could load the engine and watch what happens, I dont know how to debug this..
My other noise is a faint hollowish clunk or thud sound from the front of the car. Its easy to reproduce in manual mode (my car is DSG) when in 2nd or 3rd gear and extremely low speed, just tap the gas pedal for a second, and after lifting about 0.5-1s there is a sort of a clunk. It seems to come often when driving to car park, slowing down and when lifting off the throttle, clunk.
My car is a MY07 GTI DSG with revo s2, 3" dp with cat, THS top mounts, dogbone mount insert, s3 cooler, a3 throttle pipe, oettinger turbo outlet kit etc. From what I recall, neither of these sounds came alive after any specific modification.
I will be greatful for any hints or tips to pinpoint these. I have been searching all the VW forums I can find but either Im using wrong words or the problems are specific to me.
