When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Plans to replace coolant expansion tank just got moved up
Well, I was planning on doing the coolant expansion tank this spring as soon as it warmed up as I'm pretty sure it's the original. From all I've read, a leak on the exhaust tip from this area is classic expansion tank woes. Looks like the schedule just moved to the left!
I recommend you do some investigative work first. Is your coolant cap blue and end in PN 04? Now, check all the hoses around and connected to the expansion tank. Get a coolant pressure tester and pressurize the system. You can get one off Amazon or even rent one at the local auto parts store. If jumping in to replacement, only a OE Porsche tank. Yes, I know, you'll pay for it but anything else is aftermarket crap.
Sounds like me last summer. Took a drive in 90+ degree heat & found a puddle behind the left rear wheel when I stopped to grab a drink. Couldn't find and obvious source, did some reading here & did a similar drive a day later to test & diagnose. No leak. Did a much shorter drive a few days later in cooler weather, came back from jogging, another puddle. Via process of elimination I was pretty sure it was the tank so I replaced it. No more puddles.
If there aren't any leaking hoses then it's probably the tank. It expands when it gets hot & pressurized and formerly water tight cracks start leaking. I agree with the comment about the OEM tank. I saw on one of Jake Raby's videos that he tried all the aftermarket tanks & they all had problems.
I recommend you do some investigative work first. Is your coolant cap blue and end in PN 04? Now, check all the hoses around and connected to the expansion tank. Get a coolant pressure tester and pressurize the system. You can get one off Amazon or even rent one at the local auto parts store. If jumping in to replacement, only a OE Porsche tank. Yes, I know, you'll pay for it but anything else is aftermarket crap.
The coolant cap is P/N 996.106.447.00. It's definitely not coming from the cap and I can't find any signs of a leak from up top. I'd have to start removing things to pinpoint it. Honestly, with how old I believe it is, I wouldn't mind replacing it anyway.
Arrggh. The non-oem tank just bit me. Just under three years and 7,000 miles. Same symptoms as ssherman. I pulled out the airbox and air pump and couldn't find anything wet until I reached under the coolant tank. Does anyone have a recommendation on where to buy? It's $637 on Pelican.
Edit: I just found it for $436 on AutohouzAZ. Does anyone know which sites give Rennlist or PCA discounts?
Believe it or not, I just received the coolant tank that I ordered yesterday. I have a feeling they didn't send me the Genuine Porsche tank that I paid for. The box doesn't say Porsche and I don't see any part number on the tank. And lastly, it came with a cap, which I believe doesn't come with the unit from Porsche. Can someone confirm whether their Porsche tank had a part number on it? The emailed receipt says "Genuine Porsche Expansion Tank"
Believe it or not, I just received the coolant tank that I ordered yesterday. I have a feeling they didn't send me the Genuine Porsche tank that I paid for. The box doesn't say Porsche and I don't see any part number on the tank. And lastly, it came with a cap, which I believe doesn't come with the unit from Porsche. Can someone confirm whether their Porsche tank had a part number on it? The emailed receipt says "Genuine Porsche Expansion Tank"
Yes, I purchased a genuine expansion tank from a Porsche dealership in Atlanta. The tank came in a box with the official Porsche sticker on the outside with a part number just like any OEM genuine part. The expansion tank did not come with the blue cap or a coolant level sensor. Had to order them separately.
Believe it or not, I just received the coolant tank that I ordered yesterday. I have a feeling they didn't send me the Genuine Porsche tank that I paid for. The box doesn't say Porsche and I don't see any part number on the tank. And lastly, it came with a cap, which I believe doesn't come with the unit from Porsche. Can someone confirm whether their Porsche tank had a part number on it? The emailed receipt says "Genuine Porsche Expansion Tank"
Was this from Autohaus AZ? Mine is on the way from them, so I'm curious.
Was this from Autohaus AZ? Mine is on the way from them, so I'm curious.
Yes. I just sent mine back to exchange for the one I paid a premium for, I hope you don't wind up with the same problem. If the tank you receive has a coolant cap on it, it's not the Porsche tank. Also, the tank should have a part number embossed on it somewhere. I don't remember where as I don't have my original tank anymore.
Yes. I just sent mine back to exchange for the one I paid a premium for, I hope you don't wind up with the same problem. If the tank you receive has a coolant cap on it, it's not the Porsche tank. Also, the tank should have a part number embossed on it somewhere. I don't remember where as I don't have my original tank anymore.
Great. I ordered from them instead of Sunset, which was $100 cheaper (I ordered other things) because I need to get this thing installed. They had the tank in stock and Sunset said 3-5 days before it ships. I don't really have time to send it back and wait for another one...
Well, I'm happy to report that they sent me the Porsche tank. I will also say that there was no way the old one was coming out without disconnecting the two fuel lines next to it. I dropped the engine as far as I could without completely removing the nuts from the mounts and it still wasn't coming out. I have no idea how some of these tutorials say you can get it out without doing either of those.
03-11-2021, 03:24 PM
Plans to replace coolant expansion tank just got moved up
