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wicklowRRirl

Member Since: 01 Nov 2020
Location: wicklow
Posts: 4

td6 oil in expansion tank

morning folks ,
while out checking a few bits on RR I noticed there was quiet an amount of black oil in the expansion tank.
oil level has dropped no signs of water in the oil or on oil cap,
is there anywhere else oil could get into the cooling system a part from head gasket failure on the m57?
roughly how many hours are in doing the head, rough cost?

1st Nov 2020 2:27pm

mjdronfield

Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7793

2011 Range Rover Vogue SE TDV8 Buckingham Blue

I’m not an expert, so might not be related in any way..... have you changed the crankcase breather or replaced it with a vortex one from a later BMW?

Usually gets missed when servicing.

More knowledgeable folk along soon.....

2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

1st Nov 2020 3:29pm

wicklowRRirl

Member Since: 01 Nov 2020
Location: wicklow
Posts: 4

I haven't replaced that but will throw it on there growing list

1st Nov 2020 3:35pm

mjdronfield

Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7793

The filter one can get blocked, not sure if that would then send oil where it’s not supposed to be. Fit a vortex one and you will never have to change it again.

2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

1st Nov 2020 3:51pm

nicedayforit

Member Since: 11 Jun 2011
Location: Beside the Solway
Posts: 3972

2004 Range Rover Vogue Td6 Giverny Green

There's an engine oil cooler bolted to the rear of the oil filter assembly. It's a plate heat exchanger, engine oil on one side of the plates, engine coolant on the other side of the plates. It's not inconceivable one or more of the plates has corroded through allowing oil to mix with the engine coolant.

1st Nov 2020 5:56pm

wicklowRRirl

Member Since: 01 Nov 2020
Location: wicklow
Posts: 4

thanks for the reply ,
that seems like my first try in morning, the oil cooler looks like sh17 from the outside if that's anything to go by hah a

1st Nov 2020 8:16pm

wicklowRRirl

Member Since: 01 Nov 2020
Location: wicklow
Posts: 4

thanks for the replies , after popping off the oil cooler and a few choice words the problem looks like the oil cooler gave in.
now the fun part of flushing out the cooling system

2nd Nov 2020 1:00pm

mjdronfield

Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7793

Got there in the end. Least it’s easy to get to.

2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

2nd Nov 2020 1:15pm

kds2

Member Since: 30 Sep 2017
Location: lincoln
Posts: 222

2008 Range Rover Vogue TDV8 Stornoway Grey

wicklowRRirl wrote:
thanks for the replies , after popping off the oil cooler and a few choice words the problem looks like the oil cooler gave in.
now the fun part of flushing out the cooling system

I have found the best thing to clean oil out the rad is a tin of petrol injection cleaner, start by flushing the rad out as best you can then fill up and add the injection cleaner run the engine till it is properly warmed up, flush rad again several times with clean water follow up with some proper rad flush (yes its a lot of flushing) and the cooling system will be cleaner than a clean thing on cleaning day, over the years I have had this job on several different cars and it works a charm.

2nd Nov 2020 11:37pm

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