oletam Posted August 31, 2010 Report Share Posted August 31, 2010 Been reading a bit about the EGR valve. Couple of questions. What's the best way to clean it...petrol bath or what? I've also read about the EGR bypass. What's the advantage and how's it done. I've got a 330cd by the way. Thanks in advance. Link to comment Share on other sites More sharing options...
suhail97 Posted August 31, 2010 Report Share Posted August 31, 2010 i don't think a EGR bypass will work on your 2005 car - it will throw an engine warning light up etc Link to comment Share on other sites More sharing options...
TokaM Posted August 31, 2010 Report Share Posted August 31, 2010 Hi Oletam, I think theres a good DIY in the DIY section which is highly worth a read. When I did mine on my 2003 320D i used Wynnes EGR cleaner. Think I picked it up from ebay. I sprayed this on after removing the EGR valve, let it soak for a bit. Then I sprayed some more and used a toothbrush on it. It does get messy though so I kept rinsing it using a bucket and water. I've not done the bypass myself, but think it may throw up an error light with your car. I could be wrong though so I await correction. Link to comment Share on other sites More sharing options...
oletam Posted August 31, 2010 Author Report Share Posted August 31, 2010 i don't think a EGR bypass will work on your 2005 car - it will throw an engine warning light up etc Fair enough. But even if it didn't what's the purpose of doing the bypass. Link to comment Share on other sites More sharing options...
momo Posted August 31, 2010 Report Share Posted August 31, 2010 Yeah EGR bypass wont work on our M57N engines - engine management light and it might also go into limp home mode.. Not sure about the last part but i've heard someone mention it. The basic idea of the EGR is to take gas from the exhaust and feed it back into the inlet manifold. This is meant to help reduce emissions (along with the swirl flaps - but that is only meant to help emissions at idle). Obv the basic flaw with this idea is you get hot sticky sooty crap being fed back into your nice and expensive inlet manifold. Yeeey! Although we can't do the EGR bypass we CAN remove the swirl flaps. Over time these will get full of the sooty crap and become heavy - too heavy for the spindles that hold them so they will eventually snap and become ingested into your cylinder head causing about as much damage as our cars are worth! Nice! So - invest in something like this and be done with that problem! Doing this also means the lack of the EGR bypass isn't such a problem.. Yes its best to bypass the EGR completely but as there's no swirl flaps to break its not sooooo bad.. HTH! Link to comment Share on other sites More sharing options...
oletam Posted August 31, 2010 Author Report Share Posted August 31, 2010 So - invest in something like this and be done with that problem! Doing this also means the lack of the EGR bypass isn't such a problem.. Yes its best to bypass the EGR completely but as there's no swirl flaps to break its not sooooo bad.. HTH! Fitted a set of PMW blank plates last week. Also new type crankcase breather and air filter. Just looking at what else I can improve. The flaps weren't too bad but I binned them anyway. Now seem to have a sucking sound at low accelaration and low revs. Wonder if it's just the new k&n filter or a burst hose on the intake side somewhere. It seems to disappear with more accelaration. Link to comment Share on other sites More sharing options...
