I am confused! I smell coolant inside my 2003 HSE7 Disco but can't find a leak anywhere! I have checked the coolant level and it has dropped some over the last month but very little. The heads and gaskets are new so no leaks there. Could this be a small leak from the heater core o-rings?

Thanks in advance!

 

Check the throttle body heater hoses at the TB end and also where one of them goes into the intake. I just noticed a small leak there on mine (I just replaced the crappy factory clamp with a worm style. Hopefully that fixes my problem....which sounds just like your problem.

 

X2 on the throttle body heater hose. Replaced the hose clamps. No more coolant smell.

 

rent or borrow a cooling system pressure tester or your just wasting your time

 

Would you attach the pressure tester to the coolant reservoir?

 

Yes, and pump up to 15 PSI. There was a write of one guy you used an old coolant cap with an air chuck fitted. P_arts stores rent them, but check to be sure the adapter fits your coolant jug.