Hi guys, I am new to the site, I have an Audi A6 2005 2.7 TDI SE. I have a few problem which i would like some advice about.

1) Shuddering when accelerating above 2000 RPM
2) White smoke from exhaust when starting engine
3) Strange noise when starting engine ( Sounds like something is caught in a belt or fan), Have checked the belts and fan and cant see anything
4) Leak from Diesel Return fuel cooler at rear, I know the problem with this but cant find a replacement online. See attached

I have also been wondering if it possible to upgrade the MMI?

Thank you for your time and advice

Matt

 

UPDATE - I have now fixed the Diesel Return fuel cooler leak, £80 from audi