The Car has run close 200-250kms after the top-up now and i do not see a considerable difference in the Level of the coolant getting lost, as it used to be earlier, does it mean there is no Leak anywhere else ? What happened to the coolant that came from the factory, how did that get lost ? Should i still wait for a few more hundred's kms to be run on ODO to finally say there is no issue related to Leaks. I hear a considerable Hiss from the rear part of the car and when asked to Service@fiapl.com they replied with the below. Any 2012 punto owners pl let me know if you experience the same with your MJD's. ""Dear Sir, Thank you for your communication. If the sound is coming from rear pl check the silencer hook (rubber part). The sound may be due to that. Pl confirm the same with dealer as physical inspection details the root cause, we only can give you the probable cause. With warm regards, Ashish Bhattacharya, ""