Hello chaps,

I have a 2006 2.5 Tdi (auto), Have been getting exhaust fumes in the car for a while, so decided to replace the cracked exhaust manifold.

Not to bad of a job, apart from 1 manifold nut. All back together and now it runs lumpy at idle and knocks went revved up to about 2500 rpm.

Any ideas of what I've done?

Thanks in advance.

Andy