I'm considering draining and replacing the coolant. The service manual clearly describes the process for draining. First question is, does disconnecting the radiator hose on a tdv6 2.7 do enough to completely drain the coolant? If not can anyone suggest additional measures?

Next thing is flushing. I would like to do a flush but I can't find a procedure for this. Can anyone here impart their expertise, please?

Many thanks! Recently bought a 2007 RRS HSE TDV6 for a Pimp-My-Ride-Project.
DONE: Meduza front bumper, AB rear bumper, AB tailpipes, calipers repainted, rear upper tailgate upgrade, side steps, AB front grille, AB side vents, rear LED lights, clear side repeaters, integrated daytime running lights, LED headlights.
TO DO: color code sills and pillars.

Hi, when I renewed the coolant on my TDV8 it wasn't possible to completely drain the system; I measured the volume drained and it was a litre or two less than the full fill figure quoted in the manual. To avoid any compatibility issues I bought the coolant from the local stealer.

Traditional way of flushing the radiator is to disconnect the top and bottom hoses and connect a garden hose to the outlet hose and 'reverse flush'. Unless you have a problem with overheating it probably isn't necessary to flush the system. Just refill using de-ionised water to mix the coolant.

A job worth doing - the old coolant is bound to have lost a lot of its ant-corrosion properties so you might be saving yourself from a heap of trouble in future  2008 MY Java Black TDV8 HSE

Thanks Paddi. I was reading your post and for the TDV8 the process of draining seems more complicated than for the TDV6. I'm tempted to buy the 'Fuchs Maintain Fricofin LL Orange' (OAT coolant) from opieoils and flush the system prior to filling with this, just for the sake of being thorough. Though if I don't flush then I'll do what you did and buy the Havoline XLC coolant.

you mentioned flushing the radiator. wouldn't it work if I stuck a hose up the lower radiator coolant hose and let the water rise out of the expansion tank? or is that a silly thing to do?

Cheers ! Recently bought a 2007 RRS HSE TDV6 for a Pimp-My-Ride-Project.
DONE: Meduza front bumper, AB rear bumper, AB tailpipes, calipers repainted, rear upper tailgate upgrade, side steps, AB front grille, AB side vents, rear LED lights, clear side repeaters, integrated daytime running lights, LED headlights.
TO DO: color code sills and pillars.

The TDV8, along with the S/C, has an additional radiator in the front OS bumper. Its use is controlled by a thermostat I believe so it's likely that it and its pipework contained the additional fluid. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

tanloverluke wrote:

you mentioned flushing the radiator. wouldn't it work if I stuck a hose up the lower radiator coolant hose and let the water rise out of the expansion tank? or is that a silly thing to do?

Cheers !

I guess it would work but messy - you'll spill a lot of coolant/water inside the engine bay. If there is any sediment build-up it's most likely going to be in the narrow tubes of the radiator core not the engine waterways (and you might risk just displacing it into the engine?). 2008 MY Java Black TDV8 HSE

yep that's not ideal, unless I sealed a pipe around the opening of the coolant tank. regarding the radiator sump, isn't the cooling system a closed system, i.e. the water only circulates within the system and doesn't run into the engine? you got me worried about this now  Recently bought a 2007 RRS HSE TDV6 for a Pimp-My-Ride-Project.
DONE: Meduza front bumper, AB rear bumper, AB tailpipes, calipers repainted, rear upper tailgate upgrade, side steps, AB front grille, AB side vents, rear LED lights, clear side repeaters, integrated daytime running lights, LED headlights.
TO DO: color code sills and pillars.

Sorry - badly put on my part - should have typed: (and you might risk just displacing it into the engine waterways?).

As you say - can't see that there is a risk of getting water into any other parts of the engine. 2008 MY Java Black TDV8 HSE

ok that fine i suppose,. the OAT coolant is arriving tomorrow so I'll be getting my hands dirty with this.
Thanks for clearing that up Paddi! Recently bought a 2007 RRS HSE TDV6 for a Pimp-My-Ride-Project.
DONE: Meduza front bumper, AB rear bumper, AB tailpipes, calipers repainted, rear upper tailgate upgrade, side steps, AB front grille, AB side vents, rear LED lights, clear side repeaters, integrated daytime running lights, LED headlights.
TO DO: color code sills and pillars.

look forward to the write-up with lots of pictures 2008 MY Java Black TDV8 HSE

well, coolant was drained and system (hopefully thoroughly) flushed today. I suspect this is a relatively simple procedure for a TDV6 compared to a TDV8, as the workshop manual states that only the lower radiator pipe has to be opened to drain the system.

so, the coolant expansion tank lid was opened, then I got on my back to remove the radiator access panel. I was met with an array of pipes and clips and was a little confused as to what clip I had to release, so I went for the middle one, where the horizontal pipe connects to the t-connector, and luckily it was the correct one:

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Nice work TLL

You've also highlighted one of the great things about doing your own maintenance - spotting and fixing other little problems 'while you're in there'.

Great stuff - hope the refill goes OK. Just out of interest - what does the manufacturer say about life of the new coolant? Five or ten years? 2008 MY Java Black TDV8 HSE

Thanks Paddi!

There is a real feelgood factor with this!

I honestly don't know the life of the coolant, but it is a long life one. I would probably want to do another drain and flush in 5 years time. Recently bought a 2007 RRS HSE TDV6 for a Pimp-My-Ride-Project.
DONE: Meduza front bumper, AB rear bumper, AB tailpipes, calipers repainted, rear upper tailgate upgrade, side steps, AB front grille, AB side vents, rear LED lights, clear side repeaters, integrated daytime running lights, LED headlights.
TO DO: color code sills and pillars.

Nice work!!

Is Havoline XCL, the same coolant as the Landrover one, just rebadged??

https://www.roverparts.com/resources/video...nd-rovers/