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Old 09-01-19, 12:10 PM   #1
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Default 207 1.6 VTI Auto Losing Coolant

I've only have my car for a month and had to top up the coolant twice in that time. Both times it's been down to the minimum mark.

I can't see any leaks and there are never any puddles under the car.

One thing I did notice at the weekend was the temperature gauge was showing 70C when it usually sits at 90C

Any ideas what's going on and where my coolant is going?!
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Old 09-01-19, 07:02 PM   #2
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Simple.. its either burning it or its losing it. Burning it will come out the exhaust and losing it will come out the engine.Have a good look-see, its got to be evident somewhere..
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Old 09-01-19, 07:18 PM   #3
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I'm unsure if the VTi is related to the Prince in any way, but coolant loss in the RCZ is often down to the thermostat housing.
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Old 09-01-19, 08:28 PM   #4
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I had this problem last summer with my 1.4 VTI. Couldn't get to the bottom of it so tried some holts radweld (gold bottle) and coolant level has not dropped since.
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Old 09-01-19, 08:31 PM   #5
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2 favourite leak points on prince engine are thermostat housing and water pump i have done a few water pumps on them
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Old 10-01-19, 09:52 AM   #6
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dont forget the header tank, it can split along its seam and very hard to spot.I only spotted it when releasing the pressure, just a single drop of coolant.

to confirm i took it off, blocked holes, coated it with washing up liquid and blew through it.After a min a nice pile of small bubbles could be seen.
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Old 10-01-19, 01:47 PM   #7
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Quote:
Originally Posted by stripe88 View Post
dont forget the header tank, it can split along its seam and very hard to spot.I only spotted it when releasing the pressure, just a single drop of coolant.

to confirm i took it off, blocked holes, coated it with washing up liquid and blew through it.After a min a nice pile of small bubbles could be seen.
X2

Mine too. Little split behind the header tank for coolant.
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Old 10-01-19, 04:16 PM   #8
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Thanks, I'll have a good look around these areas at the weekend.
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Old 10-01-19, 06:54 PM   #9
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My 1.6Vti leaked at the water pump. Only evident by drips of coolant on the driver's side lower suspension wishbone.

If you can look up at the water pump from underneath there is a plastic 'vent' pointing down where the bearing is, immediately behind the pulley wheel. Look for any evidence of water deposits there.
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Old 15-04-19, 11:43 AM   #10
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The car's been fine for a while (just a small amount of coolant loss) but I lost a lot of coolant at the end of last week. I can now see a puddle under the thermostat housing on top of the gearbox.

Time for a new one. Is it a fairly easy job? No unexpected pitfalls?
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