I've just been very lucky apart from being dropped offhome on a recovery truck, I've popped a boost hose today under heavy acceleration and that has destroyed 2 coolant pipes, luckily I've managed to make 1 still work and the other I just happened to have on the shelf in the garage as I'd had to buy the complete hose for another part off it 😁

When refilling the coolant I don't appear to be getting any more air into the header tank, the level isn't dropping any more but the rear overhead heater vents don't feel warm, everyother vent is???

Ive never sat in the rear and the 10 year old that normally does isn't a reliable source for if the vents have ever been warm.... Should they be? I've been through every setting on the dash, nothings locked out,

I can't find an airflow diagram either of how it is distributed from the rear heater box.

I followed the workshop manual to the letter, been out for a drive in it and they are still cold???

Any ideas? Current
2013 Range Rover Autobiography SDV8
2001 Porsche 911 Turbo
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2007 Range Rover Vogue SE TDV8
2002 Range Rover HSE TD6
+ Many other non LR products

Rear matrix feeds the roof vents and the ones in lower sections under the rear seats. The front heater matrix feeds the vents in the middle by the dials.

To bleed the rear, you HAVE to disconnect the header tank from its mounts and raise it as high as it can go whilst still attached by its pipes ( in the region of 10 to 15cm higher ) … it’s described in the workshop manual … iirc there is a smaller pipe which is quite fragile, so be careful. Also have the header controls set to highest temp possible.

I was in the same position as yourself, and i I tried all sorts to bleed the system. Only once the tank was raised, then it took the rest of the fluid and bled through. I think there is a high point in the rear heater matrix, which needs the header tank to be above for bleeding. You wouldn’t think it would that much of a different, but for me it worked. V8 or else ...

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Last edited by Phoenix on 23rd Dec 2023 10:57pm. Edited 1 time in total

I followed the manual to the letter, I've also got a nice slope on the drive to aid in getting the expansion bottle higher but it's still airlocked.

I'm back on shift now so going to run it to work for the week in the hope it self burbs and clears, if not I'll buy thre vacuum kit and re do it over christmas. Current
2013 Range Rover Autobiography SDV8
2001 Porsche 911 Turbo
_____________________________________
Previous
2007 Range Rover Vogue SE TDV8
2002 Range Rover HSE TD6
+ Many other non LR products