Me again

 

I noticed the other day that i'm getting some smoke coming up from the back of the engine drivers side, anyway ive had a look and it seems there a bolt slack, the down pipe to turbo by the 02 sensor, now its the top one you can see by looking down by the brake booster, how the hell do you get on that little bugger, is it better from underneath and do you need a thin wall socket to get it.

ive sometimes got a bit of smoke in the same position,

 

asumed it to be exhaust manifold gasket tho,

 

il check for the bolt aswell.