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Old 07-06-11, 10:03
klxnsw klxnsw is offline
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T4 Post Icon 2.5 TDI - oil filter housing diagram

Hi everyone,

On recently buying a 2.5 TDI T4, I have noticed an oil leak coming from the housing which the oil filter is fitted to. I also saw a screw laying on the protective tray. Is it possible that the bolt has fallen out of the housing causing an oil leak???

Does anyone have a diagram so that I can have a look.

Any info would be great

thanks

KLXNSW
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Old 07-06-11, 11:42
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aggie aggie is offline
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Default Re: 2.5 TDI - oil filter housing diagram

Dont have a diagram but i can explain-the housing has two bolts,one small banjo bolt for the turbo oil feed pipe and one big banjo bolt to hold the housing to the block.They are common for the seal and gasket leaking oil on this housing,dependant on year of manufature it will either be a steel coated gasket between the housing and block or a rubber seal.There is also a rubber seal between the housing and the oil cooler.
Difficult to get to and a mucky job cleaning up the mess

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  #3  
Old 07-06-11, 14:08
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ironheadnitro ironheadnitro is offline
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Default Re: 2.5 TDI - oil filter housing diagram

Take a look here
http://www.wagenstad.com/index.php?m...&page=1-115-60
Might help
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Old 07-06-11, 15:01
Pappas Pappas is offline
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Default Re: 2.5 TDI - oil filter housing diagram

mate this happened to me, just get the o-rings and gasket and put them in. apparently these parts are a service item however im sure most mechanics dont bother changing them when required.
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Old 07-06-11, 15:45
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ironheadnitro ironheadnitro is offline
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Default Re: 2.5 TDI - oil filter housing diagram

Quote:
Originally Posted by Pappas View Post
mate this happened to me, just get the o-rings and gasket and put them in. apparently these parts are a service item however im sure most mechanics dont bother changing them when required.
I would not say they were a ''service item'' so don't blame the mechanics......
I am sure you would not want another 20/30 on your service bill for changing something that was not leaking.
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Old 07-06-11, 16:00
Pappas Pappas is offline
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Default Re: 2.5 TDI - oil filter housing diagram

yeah it was listed as a "service item" in my manual that came with the Van. it would be something that needs to be changed every few thousand kms like 40000 / 2-4 years or when a major service is done.

i would rather have them changed regularly or checked on then having mass amounts of oil spewing from the leak like what happened to me as i was just about to leave for a 50km drive on a major motorway. i lost more than 4 litres of fresh oil :-(
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Old 07-06-11, 16:03
Pappas Pappas is offline
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Default Re: 2.5 TDI - oil filter housing diagram

oh and reason why it was such a big leak was due to the last person to change this O-ring ontop of the oil cooler and the O-ring on the housing used a non genuine part as in it didnt have the little locators on them. they were rock hard like plastic when i got them out. also the completely left out the gasket between the block and the housing
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Old 07-06-11, 16:16
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ironheadnitro ironheadnitro is offline
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Default Re: 2.5 TDI - oil filter housing diagram

Quote:
Originally Posted by Pappas View Post
yeah it was listed as a "service item" in my manual that came with the Van. it would be something that needs to be changed every few thousand kms like 40000 / 2-4 years or when a major service is done.

i would rather have them changed regularly or checked on then having mass amounts of oil spewing from the leak like what happened to me as i was just about to leave for a 50km drive on a major motorway. i lost more than 4 litres of fresh oil :-(
Can't see it listed as a service item in my service schedule???????????

Anyone else consider this a service item?
Filter o ring yes
Sump bung washer yes
But filter housing o ring/gasket ??????
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Old 07-06-11, 16:40
Pappas Pappas is offline
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Default Re: 2.5 TDI - oil filter housing diagram

yeah the Filter/Oil Cooler O-ring was the culprit for me but while your there you might aswell get the other O-ring and gasket which was less than $10 AUD and one banjo bolt todo taking me less than 15 min todo.

and thanks for the heads up on the sump plug washer, ill change that next time i do an oil change.

how often do you do an oil change?
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Old 07-06-11, 21:36
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aggie aggie is offline
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Default Re: 2.5 TDI - oil filter housing diagram

Never a service item when i worked at the dealers.
Have found many leaking though just like the two 0-rings on the oil filler/breather housing and always reported the fault.

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