Hello everyone with anand Would like to find out why it vibrates in the interior of the car. Peugeot 406 STTD 96. Year of construction 230,000 km 90PS Had a problem with my immobilizer about 2 months ago, since the car died a few times and I could not leave it again………. thought that the engine pulls air or something turned out then that it is only the immobilizer, everything else was in order. The Peugeot mechanic charged me 430 euros for this, the sensor was changed and still a part………. of the san yes, which prices. Only…….since this time (where the engine started to run out of time) the motor runs out normal but inside the engine sounds bassy and the steering wheel vibrates the pedals etc………when giving gas (upper speed range) the motor does not sound very normal (somehow “rough” not as soft as before) but only in the 2nd otherwise everything is normal from the 3rd to the 3rd…… I guess. When it reaches 90 degrees it vibrates slightly less….but still sounds weak (in the interior I mean) So…..now I’m looking for causes……….the engine bearings I exclude from since the engine block actually has almost no game gear packer? the mechanic…..gitbs meant something like that at all??? exhaust valve? picked up something like that somewhere, believe somewhere in the audio forum…. KAT? doesn’t sound defective yet…… could that have been the reason? I also drove on the autobahn once and kicked the 406er pretty much so on the 170 KM/h there was the engine speed from the listener pretty much in the red area (can’t judge that exactly because my speed meter has remained stuck) but then always ran normally without vibrations……and he has to endure that, or should one treat the 406er rather gently? Had a Benz there before been everything there no problem. Since yesterday my belt has been waving when I leave the car, maybe it is due to wet weather ……..but after about 2min it is gone. Can the whole thing possibly also be because the belt will slowly bless the time? would like to catch up with your opinion before I drive to the mechanic…..because the kan tell me pretty much everything Thank you in advance!!!!