Hello guys,
I will write in English,
I did sound deadening wheel fender, 4x doors and trunk and I can share thoughts,
First of all , if you have feeling that your car is loud , check tire, tire pressure, year of tire. My OEM Bridgestone Turanza T005 was disaster in terms of noise, Pressure more then 2.4 Bar increase noise at all.
I did wheel fender only plastic part because I have anticorrosion wax on car metal frame. Definitely recommend something with thickness up to 5mm- not much space.
All doors with 5 layers - antivibration layer, sound isolation, antivibration layer on inner framer, sound absorber on door from inside.
Trunk - antivibration on left/right side with sound isolation .
+25kg weight.
Pros + Improved music quality from speakers, nice strong bass,
+ quieter ride - I did measurement and there is 3 Db diff, with new tire 4 Db
+ Car keep temperature inside - In summer is colder and in winter there is pleasant warm. AC definitely need less time to cold down car.
+ Ride is on different level- no vibration, no resonance, feel solid, stronger
+ No changes in fuel consumption
Minus - Don't expect Mercedes S silence, if you don't have 2 layer of glass you will always notice noise from windows.
- if you do it by own, please take 2,3 days to work
If you have wagon it's more important area where to focus then in liftback.
In my opinion, if you drive everyday 5 km to work and back it does not make sense to do it but if you drive 500 km in one trip - feel free to do it .