Bmw e46 316i 1.9 L (1895cc) M43B19 2001

Feb 16, 2009

-   I've just had to replace the same hose on my 2002 316i SE.
It's called a CRANK CASE BREATHER TUBE and you are advised to do the Breather valve that it connects to at the same time.
The cost is approx £55 for the two parts and will take a couple of hours to fit due to having to remove the pollen filter and housing etc above to make the job a lot easier to do.
The hose that needs replacing (Crank case Breather) over time fills up with oil deposits (like tar) and blocks the tube causing the tube to **** together and cause the hose to wear / split etc.
The hose is a two part hose that is glued to a thinner water hose (not a great design and increases part cost) - I did not want to change this hose as well as there was nothing wrong with the water system / hose so I just removed the rubber banding and pulled them carefully apart (this will save you time).

By changing these parts my Engine light was reset and now stays off. :-) -   Guest

Sep 12, 2008

-   I had a split in the breather hose which has just been replaced. The emissions light on the dash was extinguished follow a full diagnostic check but has now come back on, does this mean that i now have to change the breather valve also.

Regards

JM-   justmaddog

Aug 17, 2008

-   Had the same problem on my e46 and replaced the breather hose and valve - (now alright!) The problem started with a high pitced squeal - like a fan belt squeal ( HARD TO DIAGNOSE AT FIRST) my mechanic soon found out the problem - now fixed at a cost of £56 - BMW SYTNER (PARTS ONLY) i hope this helps someone?

Regards
Matt-   Guest