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Old 12-03-2014, 03:42 AM   #1
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Water Pump replacement

Hi All,

I suspect my water pump is making a noise, I am going to replace it regardless of the condition as I assume it is the original pump (2000 S with 59 000 miles). From what I have read on this topic the OEM pump is the way to go. I have ordered one as well as a gasket and it should arrive tomorrow.

Next question is, should I use OEM coolant or is any anti freeze okay? And while we are on coolant, the system is about 10 litres right, so the antifreeze to water ratio is 50/50?? I assume distilled water is the best?


sorry for all the questions, I just want to be really well prepared. I also bought a 160 degree thermostat from L&N a while back with a removal tool. Is there anything else I should have beside the pump, gasket, thermostat and its tool?

And lastly any special tools I should have besides basic sockets, wrenches etc?

thanks in advance!
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Old 12-03-2014, 03:51 AM   #2
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Use Porsche coolant; this topic has been discussed extensively.

U joint sockets (in the appropriate size) would be helpful. Again, search the forum for related threads.
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Old 12-03-2014, 04:02 AM   #3
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For fitting my low temperature thermostat, do I need to replace the housing? or can I use the original OEM housing? I assume I need to replace the housing gasket.
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Old 12-03-2014, 04:11 AM   #4
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You definitely should replace the gasket. Did the thermostat you purchased not include the housing? If so, someone else will need to address your question. When I replaced mine, the housing was included. (See Pelican)
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Old 12-03-2014, 04:44 AM   #5
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Quote:
Originally Posted by sickbananas View Post
For fitting my low temperature thermostat, do I need to replace the housing? or can I use the original OEM housing? I assume I need to replace the housing gasket.
There are places you can buy just the insert for the thermostat, and LN makes a tool you can use to change out the insert. Either way the thermostat housing has to come off and so you have to change the gasket.

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Old 12-03-2014, 03:44 PM   #6
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I've been running Prestone Dex-Cool in my 986 for 4 years/50K+ miles. I'll be flushing and replacing with the same this year. Be sure to completely flush the system with water to get all of the original coolant out.
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Old 12-03-2014, 10:22 PM   #7
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thanks for all the helpful info. I bought the thermostat insert from L&N as well as a removal tool. At the time they did not have stock of the housing. I understand I have to replace the gasket, only question is will the thermostat insert fit into the oem housing? and if so why would you replace the housing unless it is damaged?
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Old 12-04-2014, 03:15 PM   #8
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If you have a 2000 S, the cooling system is not 10 litres but more like 22/23 litres, so you will need 12 litres (it comes in 4 litre jugs) of Porsche antifreeze to add to the distilled water.
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