Flushing Ae8*/9* Cooling System.

[Trev]

With summer coming and a few threads popping up about cars running hot I thought I would post up how I always have/had flushed my cooling systems, next time I do a flush I will get a step by step photo guide.

 

1. Turn cabin temp to hot.

2. Undo drain cock.

3. Pull the heater hose off of the top of the thermostat housing.

4. Insert hose into heater hose and turn on.

5. Let the water run out of the heater pipe until clear.

6. Once the water is running clean use your finger to block the heater pipe on the thermostat housing so the water backflows through the engine.

7. Once the water from the drain cock is running clear turn the tap on a steady rate so that the water fills the raditor and over flowa.

8. Do up the drain cock and with the water running quickly pull the hose out of the heater hose and put it on the heater pipe to minimise the air bleeding period.

9. Doing this should of leaked enough water out for you to add a concentrated coolant to the system.

10. With the cap off and the cabin temp set to hot run the engine until both radiator hoses and both heater hoses (if applicable) are around the same temp, keep an eye on the water level while doing this

Edited October 5, 2010 by Trev

[roladude]

Wow this thread popped up at the most convenient time :lolcry:

I pretty much do the same thing only never want to touch the drain cock as they snap so easy :bash:. I know I should but meh

 

Thanks for the info Trev :y: :y: :y:

[67Rolla-Ken]

Thanks Trev, I know what I'll be doing this weekend :y: