Losing Oil

Mr-Tomcat · 27th June 2011, 13:10

Back in April it was noticed that my CDTI was losing oil, I assumed it had a leak. I booked the car in on my return from Norfolk, to be told the engine oil was being forced out under pressure, and the breather pipes were gunked up with dry debris. The car is still running, but now seems to be burning her oil, I have been told that this could be caused, by a part on the engine, fitted behind the injectors. Any help or suggestions most gratefull. Picture of supposed offending part attached.

Andy.

scouseeric · 27th June 2011, 13:17

Change the 'toilet roll' shaped filter that lives in that housing. You can remove it completely till you get one, or replace it with the upgraded type from bmw agent.hth

Eric

Mr-Tomcat · 27th June 2011, 13:41

Thank you, I have a very clean one from the one that has been written off.

Andy.

HarryM1BYT · 27th June 2011, 16:58

For your information - that object is called a PCV and it crops up quite regularly on the forum as a subject of discussion.

Mr-Tomcat · 27th June 2011, 21:55

Thank you for that, I will attempt to find out what it's for now.

Andy.

Samuelle · 27th June 2011, 22:02

Quote:

Originally Posted by Mr-Tomcat

Thank you for that, I will attempt to find out what it's for now.

Andy.

It's an easy fix, and your car should be running smoother after.

Mike Noc · 27th June 2011, 22:22

Quote:

Originally Posted by Mr-Tomcat

Thank you for that, I will attempt to find out what it's for now.

Andy.

Hi Andy, PCV - positive crankcase ventilation. Any blowby gasses in the engine need to be vented otherwise pressure will build up and cause oil seals to fail.

Back in the day they were vented direct to atmosphere but now to reduce emissions they are directed back to the intake of the engine via this valve.

Mike

Mr-Tomcat · 27th June 2011, 22:30

Thank you Mike, just the answer I needed.

Andy.

27th June 2011, 13:10	#1
Mr-Tomcat Newbie Rover 75 Tourer Join Date: Nov 2010 Location: Holyhead Posts: 26 Thanks: 0 Thanked 0 Times in 0 Posts	Losing Oil Back in April it was noticed that my CDTI was losing oil, I assumed it had a leak. I booked the car in on my return from Norfolk, to be told the engine oil was being forced out under pressure, and the breather pipes were gunked up with dry debris. The car is still running, but now seems to be burning her oil, I have been told that this could be caused, by a part on the engine, fitted behind the injectors. Any help or suggestions most gratefull. Picture of supposed offending part attached. Andy.

27th June 2011, 16:58	#4
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	For your information - that object is called a PCV and it crops up quite regularly on the forum as a subject of discussion. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

27th June 2011, 13:17	#2
scouseeric Passed Away 75 contemporary se cdti Join Date: Dec 2010 Location: Liverpool Posts: 1,579 Thanks: 0 Thanked 0 Times in 0 Posts	Change the 'toilet roll' shaped filter that lives in that housing. You can remove it completely till you get one, or replace it with the upgraded type from bmw agent.hth Eric

27th June 2011, 13:41	#3
Mr-Tomcat Newbie Rover 75 Tourer Join Date: Nov 2010 Location: Holyhead Posts: 26 Thanks: 0 Thanked 0 Times in 0 Posts	Thank you, I have a very clean one from the one that has been written off. Andy.

27th June 2011, 21:55	#5
Mr-Tomcat Newbie Rover 75 Tourer Join Date: Nov 2010 Location: Holyhead Posts: 26 Thanks: 0 Thanked 0 Times in 0 Posts	Thank you for that, I will attempt to find out what it's for now. Andy.

27th June 2011, 22:30	#8
Mr-Tomcat Newbie Rover 75 Tourer Join Date: Nov 2010 Location: Holyhead Posts: 26 Thanks: 0 Thanked 0 Times in 0 Posts	Thank you Mike, just the answer I needed. Andy.