Green coolant floating on orange coolant?

[JFP in PA]

Originally Posted by Banana S

Almost $300. (I know, I know... )

Be happy; another poster was quoted over $1000.00 to do the same thing by a dealer. At $300, about $45-50 went to coolant & distilled water; and the job should have taken about 1-2 hours, so you were charged about $125 an hour, which is about right.................

[urban_legend]

Since porsche says it is lifetime - I could not find how much coolant that I would need in the service manual. How much coolant do I need to buy?

Also I thought the whole point of colored coolant was to provide a way for the folks who don't read labels or instructions to have a fair shot at getting it right.

[Lil bastard]

Originally Posted by urban_legend

Since porsche says it is lifetime - I could not find how much coolant that I would need in the service manual. How much coolant do I need to buy?

Also I thought the whole point of colored coolant was to provide a way for the folks who don't read labels or instructions to have a fair shot at getting it right.

You'll need 2-3 gal. of coolant and 2-3 gal of distilled water. Mix 50/50 and any unused can be saved indefinitely (in a sealed container) for top-ups.

You should also have another 3-4 gal. of distilled water to flush the system. Drain it, add the distilled water, run the car for a few minutes (driving it is best, maybe 5-10 mi.), then drain the water and refill with the 50/50 mix. Bleed and top off as necessary.

Despite what many think, there is no color standard in the Industry. Mfgrs. are able to add any dye they want to their coolant, so you cannot go by color alone. Also, just because a coolant says it's compatible doesn't mean that it is.

[urban_legend]

I am replacing the coolant pump as well.

[Lil bastard]

Also, if you have a tiptronic -

The Tip has an electronic coolant valve similar to the T'stat on the engine. This valve remains closed until the engine warms up to prevent coolant flow to the tranny so it can come up to temp quicker. Once up to temp, the valve opens allowing coolant to flow through the tranny.

You need to deactivate this valve before draining, flushing, filling and bleeding the system or it will trap air. You do this by having the key in the Off position and pulling fuse B1. Once the car is bled, again key Off, replace the fuse B1.

This does not appear in the Bentley, but is one of the steps in the factory repair manual.