Zeddy

For the past several weeks (8 weeks or so) the coolant in my S4 has been sipping away (very slow, slow leak) I have taken it to the dealer and pressure tested the radiator system. The last thing they did was swap out the coolant reservoir. Three weeks or so have gone by and I can see my coolant getting lower. The coolant color is fine, I see no impurities that can lead me to belief if was mixing within the line.
Any ideas?
TIA

Flyboy

you get an oil analysis done. There are several of us right now that are experiencing a slow coolant loss with no evidence to show where it is going. I believe we all have received oil analysis reports that show the coolant is getting into the oil, which could cause premature wear of the engines components.

If you search back through the forums, limit the search to the past 6 months or so, you can see some of the posts that have been made on this topic. Those of us that are 'afflicted' are keeping in touch via email as we try to find the source of our problem.

Ah10@WMS

Check your AUX coolant pump, right under your intake manifold

forced2induce

2nd. check WP also.

noSup4u

im having the engine dissected to try to figure it out. im tired of it.

Zeddy

This is something by far that needs to get resolved. One of the main reasons I bought my Audi was becuase of rave reviews of dureability.
Is there something organize yet that might be taking it to Audi North America?

Zeddy

I've read some postings that this usually gets replaced at 40K miles or so?

Zeddy

light indicating low oil, despite the fact that I had change the oil two weeks prior to taking it to the dealership. If the coolant is gettng into the oil, what are the consequences? Is there a fix? Is Audi aware of this?
Thanks

forced2induce

yes. Or when you do timing belt.

Ah10@WMS

honestly that depends, when was the last time you did tb and wp?