Question about 1999 BMW 318 ti

2 Answers

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

The air breather pipe coming off the engine had a hole in it. I replaced it but I still have problems. I think it's the valve connected to the pipe.

Posted by on

  • 3 more comments 
  • Paul Ryan Jun 11, 2008

    I sorted i by replacing the breather valve connected to it. Awkward trying to use an alan key where it is.

  • Anonymous 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?


  • justmaddog 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.



  • Anonymous 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. :-)

  • Paul Ryan Mar 04, 2014

    The breather valve causes most of the problems



2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have a hose that is broke on my 316i but i need a dwawing of my engine to identify the part .

Posted on Feb 08, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Replacing the breather pipe is a temporary solution. The breather valve (cyclone separator) attached to it usually goes too. Awkward to get at with an alan key. The part is €50 in BMW. The pipe I replaced with some rubber tubing I had myself. It's working perfect now.

Posted on Jun 12, 2008

  • Paul Ryan Mar 04, 2014

    Normal tubing for this becomes porous in time



1 Suggested Answer


6ya staff

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I got a deutz 2011 tb deisel engine which is puting oil out threw the small breather pipe which comes from head to rubber intake pipe to turbo,air filter side.which is puting the oil out the exhaust

If you mean the breather is throwing out oil then you have a problem as this is caused by back pressure within the engine ,cause worn piston rings

Oct 28, 2014 | Cars & Trucks

1 Answer

Mazda B2500TD 97model l have problem with oil

You have excessive engine breathing/pressure. When you did the overhaul did you replace the rings etc and deglaze the bores because excessive crankcase pressure is your problem and its forcing the oil down the breather pipe. Poor valve guide stem seals is another area.

Oct 09, 2014 | Cars & Trucks

1 Answer

Oil going through intercooler and air flow control meter obviously coming from engine breather pipe is there a remidy

You might try seeing if there are any filters that need replaced/have got a hole/were sucked down, or if there was some kind of valve, if that could be replaced?

Jul 06, 2010 | 1998 Isuzu Rodeo

2 Answers

Bmw e46 318i , engine has high pitch noise after about 30 40 min driving like a screetching noise ,i had a split hose at the back behind the spaceship thingy , and i replaced the double pipes with bmw...

rubber pipe , its at the back under the pollen filter , comes as a double pipe one fat one thin , fat one is for air flow , thin one water , both for cooling the engine. The fat one was actually split , causing my engine to idle bad , so i replaced the part , engine idle is fine but now i gt that noise , and i get air suction when i take oil dipstick out while engine is running , so i am guessing something is not right but dk what

Mar 23, 2010 | 2000 BMW 3 Series

1 Answer

My 2002 bmw 330d is smoking alot and when the engine is running and i take out the oil dip stick, the oil comes shooting out like a brust pipe... Could it be that some of the breather pipes are blocked? if...

Hi , this sound like the engine breater is blocked. You will have to remove the air filter to gain access to this item, it is secured to the rocker cover by 4 x 5mm hex bolt screws. if you need any more assistance or help to remove this part just drop me a line . hope this is of help, regards mark

Jun 14, 2009 | 2002 BMW 3 Series

1 Answer

2000 bmw 323i P0173 & P0170 trouble codes

Hello There

These are very common codes on BMW's which can also be false codes, try clearing the codes and run the test again they may not come up again.
With regards to the sound which you thought was a vacum leak there a breather pipe which runs under the plastic engine cover near the injectors which always gets a tear init which will need replacing.

Hope this helps, please don't forget to rate me.

Mar 26, 2009 | 1999 BMW 323 Series

2 Answers

Bmw oil leaks

replacing the pcv valve will cure this problem

Feb 16, 2009 | 1999 BMW 318 ti

1 Answer

The engine exhaust emission light on

it sounds like the oxygen sensor, air mass meter. check the crankcase breather pipe behind the engine ( cracks, common problem), it would be wise to have a computer diagnostic done, it will save u time and money

Jan 30, 2009 | 2000 BMW Z3

1 Answer

Cause and solution

sounds like one of the oil breather pipes is bloked wich will cause oil to feed to the cylinder wich will cause smoke and uneavan running wich will cause the car to **** when standing. take off all breathing pipes main ones come from the rocker covers clean them and put them back. the main engine breather will come out of the engine block do the same.

Jun 17, 2008 | BMW 750 Cars & Trucks

6 Answers

Bmw 318i e46 idle bad

try disconnecting the air mass meter sensor if it runs better then ur air mass meter has failed had the same problem

May 30, 2008 | 1999 BMW 318 ti

Not finding what you are looking for?
1999 BMW 318 ti Logo

Related Topics:

4,096 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Frankie B

Level 2 Expert

70 Answers


Level 2 Expert

261 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides