nickcc
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I would just visit your local BMW dealer and ask for the vortex filter insert for my TD4 engined freelander, my dealer knew exactly what I needed and charged me £24.
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Hi Guys
I am new to freelander ownership but have owned BMW diesels for many years
Interesting reading this (long) thread - got a sort of sense of deja vu.
Not surprising as the TD4 is a (the) 2 litre BMW engine.
I just wanted to confirm that you guys have arrived at the good conclusions.
In fact the EGR system is designed to reduce NOx emmissions by reducing combustion temperatures in the engine. Unfortunately this has the disadvantage of letting of the "goo" into the inlet manifold.
In BMW jargon blocking the vacuum pipe is the "golf tee mod". Fitting an actual EGR bypass is a matter of choice but as far as stopping the build up of the black sticky stuff the golf Tee mod does the job.
There is also of course a considerable amount of oil that gets recycled through the inlet system - this oil originates from the air/ oil seperator. The "loo-roll" type filter needs changing on a regular basis (every 3 oil changes in BMW land) as once its blocked it can apparently shorten the life of your turbo due to excessive oil pressure ..... as well as causing black smoke emissions.
BMW sell a cyclone/vortex type seperator which does not need any regular changing or servicing - should be a good investment for landrovers too.
Regarding the inlet ports in the cylinder head - I saw one mention of swirl flaps. These are used on BMW's to "tune" the air inlet. Maybe on the landrover the swirl flap system is not used - I didnt look on mine yet as I only got it 1 week ago Anyway BMW forums are full of horror stories of swirl flaps falling into engines..... lets hope they are not fitted to the landrover.
For any of you looking for solutions to low power, poor acceleration, smoke etc etc on your TD4 them i can recommend url=http://bimmerforums.co.uk]BMW Forum|Bimmerforums.co.uk|No1 forum for BMWs|BMW Forums|BMW Tuning[/url] to you
Looking forward to sharing experiences with you all and contributing to your site
Digby
I take it that this BMW oil separator will need replacing every so often?
If so, how often?
dog-man
The 3rd oil change is for the loo-roll type filter
No need to change the vortex one although a wash would not hurt
Funny that this item is not in the bmw service schedules - at least not the publicised ones !
Digby
Can anyone confirm if the bolts that come with the egr mod kit are actually bolts needing a socket to tighten or exactly like the originals where an allen key is needed?
I took mine off today to give it a clean and I had problems accessing the lower bolt nearest the rad. If they are the same as the originals, I will have to source a longer allen key.
dog-man
I shall have to get one then.
What size is it?
I can't see any indication of the size on my short allen key.
dog-man
You'll be pleased to know that your labours will have been in vain as the next time you remove the inter cooler pipes they will still be full of oil, just seems to be the system. If anyone can prove me wrong please do as I would like to get rid of all the oil in my intake system.Quick info dump - Today have changed EGR to bypass and fitted new turbo vent and crank breather filters, plus oil filter and change and air filter. Boy was it s***ted up in the manifold and old EGR.
Just a tip - I sealed off the EGR hole in the manif temporarily, spooned some dishwasher powder into each hole in the manif and then filled it with boiling water. Repeat three times and it is shiny as new !!!
Incidentally, car feels like it can breath again now ! Anyone working on the TD4 - please don't omit the crankcase filter - it needs changing or upgrading. Mine came off without disturbing the fuel pipes, just removed star bolts and mover injector wiring gently out of the way. Great thread and info - note - even RAVE doesn't seem to require crankcase filter change !!!
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