When i put the driver window down i noticed some squeaking noises ( even after cleans the window in and out).

Squeaking started to bother me a lot so told the dealer about it and what theyv done is put some grease ? where i dont know. But its queit obviouse the job wasnt executed properly. Ive got a light shade of grease running down the middle of driver window ?

Its like one thick line from top to bottom (in the middle).

Thats both sides, driver and passenger. Even worse the squeakings come back


Anyone experienced this problem ? please shed some light before i take her in for service.


Thanks