944 S2 coolant change

[bkirby]

Hi,

I have been reading this forum for a while but this is my first post.

I have tried to find a post referring to this but I had no luck.

I have a number of questions. First, does anyone know if VW G12 plus coolant is suitable (as 50:50 mix) for a 944S2? As far as I can tell, I need to use phosphate free coolant, but this does not state whether or not it is phosphate free. If I need to get another type, that's no problem, I just had some of the G12 plus in the shed anyway.

Second, I need to flush out and re-fill the coolant in the system but am not sure where to start! I have asked the local mechanics, but none of them want to touch the car as they have never worked on a Porsche before and I an no where near the only Porsche dealers in the country, so I cannot get to them and they refuse to recommend any type of coolant other than the Porsche approved type! So any advice, or a standard procedure for flushing and re-filling would be very much appreciated.

Finally, I before I flush out everything etc, can I add the above coolant (if it is suitable anyway) to what is there already? I know this may not help but it is a light blue colour, but my antifreeze tester says it is almost water now! Would it be better to top up with water instead?

Sorry for the long post and thanks for any help!

B

[Perculator00]

Hi,

I have been reading this forum for a while but this is my first post.

I have tried to find a post referring to this but I had no luck.

I have a number of questions. First, does anyone know if VW G12 plus coolant is suitable (as 50:50 mix) for a 944S2? As far as I can tell, I need to use phosphate free coolant, but this does not state whether or not it is phosphate free. If I need to get another type, that's no problem, I just had some of the G12 plus in the shed anyway.

Second, I need to flush out and re-fill the coolant in the system but am not sure where to start! I have asked the local mechanics, but none of them want to touch the car as they have never worked on a Porsche before and I an no where near the only Porsche dealers in the country, so I cannot get to them and they refuse to recommend any type of coolant other than the Porsche approved type! So any advice, or a standard procedure for flushing and re-filling would be very much appreciated.

Finally, I before I flush out everything etc, can I add the above coolant (if it is suitable anyway) to what is there already? I know this may not help but it is a light blue colour, but my antifreeze tester says it is almost water now! Would it be better to top up with water instead?

Sorry for the long post and thanks for any help!

B

I dont know about using the G12 Coolant, but if I had to guess, I think it would not hurt really. I just ordered some OEM Porsche coolant thro Pelicanparts.com

I did a coolant flush/fill about 5 months ago. There are a few ways to do it. 1) Drain the radiator throught the plastic drain plug underneath the unit, but then it is suggested to also drain the coolant in the engine block too. This is a pain in the *** cause that drain plug is real real tight and hard to get to, and most of the time its corroded with rust n ****.

2) This is the procedure I used. Run the motor for a few minutes and wait for the cooling fans to turn on, the second they turn off, turn OFF the car, get under the vehicle and loosen/open the lower radiator rubber pipe coming from the lower passenger side. The thermostat is open at this time, so ALL the coolant will flush out. After, tighten the hose, and u can poor water in the system and run the engine to flush out any dirty stuff (optional really), and do the same procedure again. Just be careful when running it with the water in, you just dont want to do it for too long, just long enough for the fan to turn ON then OFF, and then go and drain it at the same spot.

After you've done that, go ahead and fill the system back up with Coolant (the Porsche coolant I got, I mixed with 50/50 distilled water)

Hope that helps :thumbup: