997 TT flow tubes
 

Hello,
Picked up a 2010 997.2 TT with 47K miles in mid November 2023. The car was well taken care of and the Porsche dealership did a wonderful job bringing it to certified specs. Recently I had a talk with a local Porsche dealership mechanic and he told me that the 997 TT flow tubes (engine coolant) were known to leak, especially in the rear, and that at some point I should address the issue especially if I planned to track the car..... which I'm not. I asked him what it entailed and he told me that they drop the engine, replace some plastic tubes /pipes and weld the rest at their joint and he gave me an approximate cost of $4000-$5000. I would love any feedback/comments/advice.

I have a 2010 and have not been alerted to this. Perhaps the mechanic was referring to the previous generation motor?

Yes, sounds like the well-known 997.1 issue, not relevant for a 997.2.

Very common and discussed part of 997.1 Turbo ownership, not 997.2 Turbos as stated above..

Your mechanic is referring to the plastic coolant pipes that crack and can be replaced with the sharkwerks version which is metal. The other coolant related failure he's referring to is the coolant housings, where the coolant pipes pop out causing a big mess of coolant everywhere.. I believe there are 7 points of failure that need to be pinned or welded in order for the pipes not to let loose.. Do a search for "pinning coolant lines" or something like that and you'll see a lot of stories and info.. again, this is for 997.1 TT, not 997.2 TT so I think you're in the clear for these issues..

Thank you all very much for your replies. I pretty much got the same feedback from a couple other Porsche mechanics yesterday. They told me that this issue, when presented was typically on tracked cars.

No that's not the case, or what was said above. it is an issue on 996-997 mezger engined cars (turbo, gt2, gt3). Doesn't matter if tracked or not. Yours is a 2010, no issue.

Thank you Harlanmott3! I was not comfortable with the explanation that the local dealership was giving me.