Hi !
I will have a closer look att this ( exhaust hitting support ) on my car. Have dismounted cardan shaft ( can´t find any wrong with that but as i found an other cheap one from an 16 000 km car so I will replace it ) . Have also dismounted exhaust pipes from cat´s and backwards so now it´s a litle bit more sight.
The smell comes from oil leaking down on exhaust but I dont know where the oil i leaking from.
I also will replace oil in gearbox ( automatic ) I have found how to do in several web sites , but not how to check oil the differentials . I asume they don´t run in automatic fluid.

Bengt