Spot on my 2013 done the same and I replaced the coolant bottle done the trickEarly twinairs were prone to a Casting failure on the Expansion tank (at the metal hose joint..)
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Technical 4x4 Twin Air Coolant Boiling Over
- Thread starter Mefster
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Technical 4x4 Twin Air Coolant Boiling Over
Thanks for all the guidance and advice. I’ve had chance to investigate further this afternoon. I dried around the expansion tank and then took the car for a run to get it up to temperature. No hide amount of exhaust smoke or sweet smell and performance appears normal. On my return I noticed more leakage, mainly on the cast engine mount under the tank. In closer inspection it didn’t look like it was coming from the cap. Poking around I realised there was some leakage around the hose marked with the arrow. It didn’t appear split, so I repositioned the hose clip and it appears to have solved it 
.
Regarding the fan, it hasn’t kicked in, although water temp isn’t showing as too high (assuming the thermostat isn’t shot). How early should the fan kick in? I have MultiECUScan and it hasn’t shown any fan/thermostat errors…
Thanks again for all the help!
.Regarding the fan, it hasn’t kicked in, although water temp isn’t showing as too high (assuming the thermostat isn’t shot). How early should the fan kick in? I have MultiECUScan and it hasn’t shown any fan/thermostat errors…
Thanks again for all the help!
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Good newsThanks for all the guidance and advice. I’ve had chance to investigate further this afternoon. I dried around the expansion tank and then took the car for a run to get it up to temperature. No hide amount of exhaust smoke or sweet smell and performance appears normal. On my return I noticed more leakage, mainly on the cast engine mount under the tank. In closer inspection it didn’t look like it was coming from the cap. Poking around I realised there was some leakage around the hose marked with the arrow. It didn’t appear split, so I repositioned the hose clip and it appears to have solved it
Regarding the fan, it hasn’t kicked in, although water temp isn’t showing as too high (assuming the thermostat isn’t shot). How early should the fan kick in? I have MultiECUScan and it hasn’t shown any fan/thermostat errors…
Thanks again for all the help!
Run the fans via MES actuators
