DISCO3.CO.UK - View topic - Engine oil leak after oil change

Markhawkins

Member Since: 03 May 2015
Location: Banbury
Posts: 148

2005 Discovery 3 TDV6 GS Manual Santorini Black

Engine oil leak after oil change

We did our second oil change on the D3 yesterday - care was taken inserting the filter into spigot, putting on the O ring and tightening down the filter housing as before. Oil was put in, the engine run, level checked and adjusted and all seemed OK. Did 50 miles then found oil spray under the car at the rear of the engine underneath - 2 litres needed to bring it back up. No warning lights seen when driving / idling and the car sounded normal. The sump plug is is tightly in place, the filter housing is clean and oil free at the front where I can see. I haven't removed the filter housing yet. Is a poorly seated O ring on one side the most likely fault or should I be looking for another source of leak?

16th Dec 2016 9:36 pm

DN
D3 Decade

Member Since: 24 Jun 2006
Location: W.London.
Posts: 2317

2006 Discovery 3 TDV6 Base 7 Seat Auto Zambezi Silver

The plastic housings have been known to split, but the most likely cause is the seal damaged, twisted, or not in the correct groove on the housing. I think you will have to remove the filter and housing and have a look, if necessary get a new seal ( not sure if available without a filter) fit it, and put some oil on it, and try fitting it all again. Oh and try to mop up all the oil spillage too, easier said than done though I suspect.

D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.

16th Dec 2016 9:58 pm

Markhawkins

Member Since: 03 May 2015
Location: Banbury
Posts: 148

The spillage is on the underside of the car around the gearbox, exhaust and cross member - is the filter housing the most likely source?

16th Dec 2016 10:30 pm

DN
D3 Decade

Member Since: 24 Jun 2006
Location: W.London.
Posts: 2317

If the filter (and sump plug) are the only things that have been disturbed recently, and you had no leakage like this before.....then I'd say yes, the oil would tend to run backwards in the 'v ' and then run down the back of the engine. 2 litres, that's a lot to lose, but lucky you noticed it before you lost the lot

D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.

16th Dec 2016 10:32 pm

M3DPO

Member Since: 22 Sep 2010
Location: Notts.
Posts: 8154

2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris Grey

Did you torque the filter up correctly? Was the filter oem? - if not fit a oem. Always best to run the engine and check for leaks before replacing covers.
I once had a non oem screw on filter (not on a LR) blow off and lose most of the oil 2 minutes after an oil change, the threads on the new filter where very slightly larger diameter or wrong size, always fitted oem since then, this might be the problem with the "O" ring supplied. It can when others can't,
It will when others won't,
It goes where others don't.

16th Dec 2016 11:07 pm

Markhawkins

Member Since: 03 May 2015
Location: Banbury
Posts: 148

It was a Bosch filter - I thought that was a good make. I did run the engine for a while without covers for a while but if the leak was at the back I;m not sure I would see the leak.

17th Dec 2016 12:20 am

lynalldiscovery

Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti Grey

I remember a mate fitting the o ring in the wrong groove on a freelander, that certainly made some mess!

17th Dec 2016 4:05 am

Markhawkins

Member Since: 03 May 2015
Location: Banbury
Posts: 148

I located the O ring in the groove in the middle of the thread as the Haynes manual appeared to indicate - is this the wrong place?

17th Dec 2016 9:25 am

Pete K

Member Since: 15 Jan 2016
Location: GL
Posts: 10485

2005 Discovery 3 TDV6 HSE Auto Rimini Red

Did you change the sump plug though? It has a rubber seal.
I found mine leaked when it got hot, following an oil change.

new plug on ebay ~£3

17th Dec 2016 11:08 am

DN
D3 Decade

Member Since: 24 Jun 2006
Location: W.London.
Posts: 2317

Markhawkins wrote:
I located the O ring in the groove in the middle of the thread as the Haynes manual appeared to indicate - is this the wrong place?

. ............... The correct groove for the square section seal, has a tapered core , so that when the seal is fitted, it sits at a bit of an angle, is this the groove that you fitted the seal in

D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.

17th Dec 2016 11:26 am

Markhawkins

Member Since: 03 May 2015
Location: Banbury
Posts: 148

I removed the filter housing to find all but a 2 cm seated in the groove leaving a portion of ring misshaped. I replaced the housing and filter, gave the underside a clean up and drove around - the car still has oil in it and there doesn't seem to be a fresh leak.

17th Dec 2016 8:36 pm

lynalldiscovery

Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

Good job

and you have learnt something which is what matters for the future and thats how we all learn.

17th Dec 2016 9:31 pm

M3DPO

Member Since: 22 Sep 2010
Location: Notts.
Posts: 8154

And without doing any damage, assuming you haven't got a paved drive

It can when others can't,
It will when others won't,
It goes where others don't.

17th Dec 2016 10:47 pm