Better double check the thing....
Try to send the car to check up....
This is no easy problem... have to cehck it out soon.....

Example....
Last few month, at Penang bridge....
There is a Merc S350L with father and daughter....
Father suspected and smelt some burnt smell..... he stop and checked...
He continue to drive bcoz found nothing.....
Later on, he get out the car and check again.... and he found his boot is having fire....... he can't do anything...... The Merc is burnt to TOTAL LOST...