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Cam-Tech-Craig

Member Since: 03 Aug 2011
Location: Gloucestershire
Posts: 16315

2015 Range Rover SVAutobiography SDV8 Loire Blue

4.4 TDV8 Oil Leak Fix

As some of you may have read? The 4.4TDV8 engine seems to suffer with a catastrophic oil leak from the rear of the “V” leading to oil running down the bell housing, covering everything!!! Then runs onto the exhaust and stinks!

I have done almost every 4.4TDV8 we have seen so....... This appears to be a common issue!

So i did my own this weekend, which was NOT leaking much... But i knew it would develop if left.

First, remove the air box that houses the pollen filter, 2x 13mm headed nuts then pull the whole assembly off.
Next, remove the engine cover, simply pull it upwards and off.

The first two pics show the pipe with the 8mm headed bolt holding it in place.

Click image to enlarge

Here is the pipe removed, Showing the two “flattened” rubber “O ring’s”

Click image to enlarge

Here are the “O ring’s” removed and a simple “O ring” kit, available from fleabayetc etc...

Click image to enlarge

And finally after replacement “O ring’s” fitted and the pipe refitted.

Click image to enlarge

The car was then test driven, the mirror was then used to re-check there was no more leak

Consider, my car has only covered 23k miles so worth looking whatever your milage is

1st Feb 2016 7:26pm

Edfors

Member Since: 26 Oct 2012
Location: Uppsala
Posts: 168

2008 Range Rover Vogue TDV8 Alaska White

Thank you! Now I just need to find a 4.4 TDV8 and try it on Supporter and maintainer of EDF - Mrs Edfors' shopping cart.

1st Feb 2016 8:12pm

heppsen

Member Since: 14 Feb 2012
Location: germany
Posts: 170

2012 Range Rover Vogue TDV8 Santorini Black

Thanks Craig, will be done next service. Just need to spec this work as extra

Any idea of somebody making "proper" silocone turbo hoses instead of the crap ones?

Regards
Heppsen 2017 MB V-Class
2016 Q7 (gone)
2012 FFRR TDV8
2012 Smart Pulse Turbo
1986 MB W126
1965 LR Series 2A
1961 LR Series 2

1st Feb 2016 8:42pm

northernmonkeyjones

Member Since: 24 Mar 2012
Location: derby
Posts: 8686

2016 Range Rover Autobiography SDV8 Santorini Black

There's an excuse to get oily this weekend. I will get the boroscope on mine at the weekend. I'm sure I have a couple of boxes of o rings in the garage somewhere!

Think I can figure where it is from the pics, take it you are looking back RHS when facing the car. There is nothing that can't be fixed with a hammerðŸ˜œðŸ˜œ
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

1st Feb 2016 10:52pm

Cam-Tech-Craig

Member Since: 03 Aug 2011
Location: Gloucestershire
Posts: 16315

No no, bang on central NMJ... You will clearly see the lag'd pipe on the back, then look for the Ali pipe and follow it sir

Easy to work with a small mirror as I did... A boriscope will be too close I think (certainly was with ours)

1st Feb 2016 11:16pm

northernmonkeyjones

Member Since: 24 Mar 2012
Location: derby
Posts: 8686

There is nothing that can't be fixed with a hammerðŸ˜œðŸ˜œ
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

2nd Feb 2016 8:54am

northernmonkeyjones

Member Since: 24 Mar 2012
Location: derby
Posts: 8686

don't think mine is leaking yet! There is nothing that can't be fixed with a hammerðŸ˜œðŸ˜œ
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

2nd Feb 2016 8:33pm

Cam-Tech-Craig

Member Since: 03 Aug 2011
Location: Gloucestershire
Posts: 16315

Glad to see it

2nd Feb 2016 10:34pm

CS

Member Since: 14 Apr 2015
Location: Edinburgh
Posts: 1396

2017 Range Rover Autobiography 5.0 SC V8 Corris Grey

Thanks for this useful post. As a matter of interest, could one check for such a leak from underneath the car as an alternative to removing the pollen filter housing etc (assuming nothing dripping on the ground and oil level normal)? Only Range Rovers since 1988

3rd Feb 2016 8:12pm

northernmonkeyjones

Member Since: 24 Mar 2012
Location: derby
Posts: 8686

It is really tricky to see from underneath, as it is at the top of the engine. I used a boroscope to look down the back of the engine.i would think you would need to take off the pollen filter housing to get a mirror into position. There is nothing that can't be fixed with a hammerðŸ˜œðŸ˜œ
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

3rd Feb 2016 9:51pm

Cam-Tech-Craig

Member Since: 03 Aug 2011
Location: Gloucestershire
Posts: 16315

The normal give away is the smell of burning oil on a long run, then you put it on a rang and OH !!! CS...

3rd Feb 2016 9:51pm

GraemeS

Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2575

2012 Range Rover Autobiography TDV8 Bournville

Thanks Craig - I have no reason to suspect that mine wont leak in due course. Do you know the O-ring size as I'll have to get them before starting but would rather not have to mail-order genuine spare parts.

4th Feb 2016 1:34am

Baltic Blue

Member Since: 13 Aug 2015
Location: North Wales
Posts: 3788

2011 Range Rover Vogue SE TDV8 Baltic Blue

Thanks Craig,pity you are not local to me or I would be your next customer.
Do you mind if I print out topic and show it to my MD next service (included in 2yr approved guarantee package)?

4th Feb 2016 11:46am

GraemeS

Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2575

CS wrote:
could one check for such a leak from underneath the car as an alternative to removing the pollen filter housing etc

The pollen filter is very simple and quick to remove, as is the engine cover, after which checking using a mirror is also quick and simple.

The pipe is the centre oil feed pipe and has been superseded, as has the original pipe for the 4.4 in the L405 and the o-rings don't appear to be available as spare parts. The seals may have been replaced with appropriate Viton versions leading to the new pipe part numbers. Replacing with general purpose o-rings is likely to be only a temporary fix.

Edit: Looking at standard O-ring sizes my guess they're either BS204 or BS205 - I can get Viton BS204 locally. However if metric size (most likely) then many size possibilities.

6th Feb 2016 3:29am

Cam-Tech-Craig

Member Since: 03 Aug 2011
Location: Gloucestershire
Posts: 16315

GraemeS wrote:
Thanks Craig - I have no reason to suspect that mine wont leak in due course. Do you know the O-ring size as I'll have to get them before starting but would rather not have to mail-order genuine spare parts.

Graeme I’m sorry i don’t... How would one measure an “O ring”? i can happily take a measurement for you but am unsure what you want me to measure, and how?

6th Feb 2016 9:19am

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