[cog-n-chips]

So, as the title implies my car has failed the MOT on these crazy new emissions laws. BMW give 0.5 as the 'plate' value, which testers must now adhere to.

I tried a bottle of cataclean and a good run up motorway but barely made a difference. Dropped about 0.3.

Has anyone else had similar issues with post-2008 BMs?

I am about to replace the nnnggg DPF and air filter. Reckon I am on the right track?

Any advice appreciated guys, cheers