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Coolant leak top of gearbox

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Go_West

Member Since: 15 Sep 2016
Location: Breda
Posts: 51

2007 Discovery 3 TDV6 HSE Auto Stornoway Grey

Coolant leak top of gearbox

There's a coolant leak which seems to come from the top of the autobox near the engine.
What could cause this and does anybody has experience with this?
There's no room to work, my local Indy wants to drop the auto box.

Thanks all -2007 Disco 3 TDV6 HSE Stornoway Grey
-2007 Mini JCW Full Black SWMBO's

23rd Mar 2017 4:51 pm

Pete K

Member Since: 15 Jan 2016
Location: GL
Posts: 10355

2005 Discovery 3 TDV6 HSE Auto Rimini Red

i'm sure mirrors would be better.

the only thing I can think of in that area are obvious at the top of the engine bay

1) Heater pipes to cabin.
2) EGR cooler cross over pipe (on top of engine)

23rd Mar 2017 7:07 pm

Oswiperus
D3 Decade

Member Since: 02 Apr 2010
Location: Chelmsford, Essex
Posts: 1590

2005 Discovery 3 TDV6 SE Auto Java Black

Are you sure it's coolant and not just water from the A/C evaporator drain as that will run down the side of the gearbox. Stu

2016 D4 Landmark current
2022 Defender D300 SE Gone

D4 2014 XS Commercial - Gone

D4 2016 hse lux montalcino red - Gone
D3 2005 se java black - current
D3 2005 base manual - gone

D2 1999 TD5 E white - current

23rd Mar 2017 7:13 pm

Pete K

Member Since: 15 Jan 2016
Location: GL
Posts: 10355

Good point.

23rd Mar 2017 8:09 pm

Go_West

Member Since: 15 Sep 2016
Location: Breda
Posts: 51

I'm sure it's coolant. Because I need to top up regularly. At least every day with short drives.
After some closer inspection it might be leaking from underneath the Y piece from the inlet system.
Dripping down the at the back of the engine.

I'm sure I've read something here about a part which can have tiny shreds in the housing..
Below the throttle body. Anybody knows which part this is? -2007 Disco 3 TDV6 HSE Stornoway Grey
-2007 Mini JCW Full Black SWMBO's

23rd Mar 2017 8:18 pm

MGCarr

Member Since: 15 Jul 2014
Location: Lancashire
Posts: 703

2007 Discovery 3 TDV6 SE Auto Buckingham Blue

Have a look at this thread that I posted a little while ago

http://www.disco3.co.uk/forum/topic152035.html

I hope that yours is a similar problem to mine as it is a reasonably straightforward repair and not mega expensive.

1997 Defender 90 for the kids and I to have a go at some competitive off road RTV and Tyro trials, daughter picked up her first trophy over the August Bank Holiday.
Previous Land Rover history
1996 P38 4.6 V8 Autobiography
1996 Discovery TDi 300
1972 Range Rover 3.5 V8
LWB Hard Top Series 3
LWB Truck Cab Series 2A
Not been without a Land Rover for over 40 years - I must need therapy!

23rd Mar 2017 8:32 pm

Go_West

Member Since: 15 Sep 2016
Location: Breda
Posts: 51

-2007 Disco 3 TDV6 HSE Stornoway Grey
-2007 Mini JCW Full Black SWMBO's

23rd Mar 2017 8:33 pm

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