Randy, thank you very much for all your time and energy in posting this. The excellence of your work shows through in the video. I appreciate human beings like you very much. All the best, Charles
You all probably dont give a shit but does anybody know a method to log back into an instagram account?? I was stupid lost my login password. I love any assistance you can give me
@Grey Malachi Thanks for your reply. I found the site on google and Im in the hacking process now. Seems to take quite some time so I will get back to you later with my results.
Best 1.8t coolant flange DIY video I've encountered. Same thing, more or less, as the Audi A4 engine... they're both the B5 platform. There are several great tips in here that others did not mention because they were not thoughtful. Such as how to remove crimp-type hose clamps (buy standard replacements). THANK YOU for the great video, Randy.
I just did this job on my 01 AUDI 1.8T. I didn't see this until after I was done but this post is pound for pound, the best one available. If you still are still leaking after doing this, It's probably the heater hose' s quick connect to the flange.
Yes that did cross my mind. When I change the O ring in the coolent flange I will most likely change the heater hose as well . That way I know for sure I've gotten all leaks out the way. Good thinking.
I really appreciate your efficient style of providing VERY thorough details. I know the order of what I need to remove, the orientation, connector type, and additional parts, (o-rings), I need to complete the job. I think most of us are aware of the potential for encountering unexpected adventures and challenges whenever we're standing in front of an open hood with a wrench in our hand. I'm not saying there's nothing to be gained from seeing how someone else deals with a stubborn connection but, it doesn't exactly motivate me to dive into a job! It's great to get all the important information I need to know without having to watch every turn of a wrench. I've had a look at what I'm up against and read several posts that informed me of the obvious fact that this job sucks because the part being replaced is located on the back side of the engine. Getting a quick look at a clip and being informed that it comes off towards the rear of the vehicle is the kind of stuff that really helps. Thanks a million!
Thanks for posting. Well done. I did this and would add couple of points. The flange has 2 nuts which hold metal bracket AND then 2 "stud" style nuts under those, which actually holds the flange, as I remember, (or they may have been on the combi valve), but point being, there are 2 "stud style bolts/nuts" back there. Also, be careful of the combi valve metal gasket install, I think it is possible to install backwards (hole covered and, of course is quite to keep in position on reinstall ! Randy's comment that this is a "tediuos" job has some southern graciousness about it, In Maine ... we call this job a royal pain in the arss ! Lol. Again thanks, Randy. Agreed ... this car is very difficult to work on ... everything !
thank you do not know if this is my 100% problem but that could be it since i already eliminated a lot of leaks like heat sensor, heater hose but I still have a leak smaller less but looks like still same spot. I just came across your video and I have a feeling this might be it I just hate that I need to go through all of this since I just replaced four valves on my Volkswagen and it was so close to the same spot taking everything apart would've been so much easier if I would have known this :) life LOL
Yes I agree this is the best video of how to remove and replace parts on a vw . Thank u Randy , u saved me a lot of money and time for getting things done on my vw passat. But I do have a question does the commy valve need a gasket when putting it back?
Thank you! Sorry, but I do not remember if the valve has a gasket. I shot this video years ago and I can’t remember. Lol. I’m sorry that the video is so shaky, I have MS and my hands shake sometimes.
thanks man you saved me so much time!! Quick question though do you recommend replacing the whole coolant system of a 2.0L 2004 passat? my engine was leaking coolant, and i have replaced thermostat/water outlet housing. Im asking as ive heard its common that the coolant completely corrodes the plastic cooling system parts....
Note - it is critical to be sure to bleed the coolant system afterwards, as trapped air can cause a no heat situation. Here's a you tube system bleeding link: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JnaqzNKjAlQ.html
Oh one more thing to add after I replaced the two things like I mentioned when the engine was hot or somewhat warm under the pressure test we could not find a single leak it only happens when it depressurizes overnight. It will not happen within several hours the only way right now for me not to have a leak is when I come back home released pressure clothes back in it becomes a vacuum and then pretty much don't have any leaks in the morning LOL even the mechanic who help me to replace all these hoses sensors and leaks scratching his head since under the pressure we cannot find the leak.
Great video, mine has leaked slowly for months and has now got worse so will be doing this very job. How long did it take you? Many thanks in advance...
Nice video. I had a shop change the coolant flange. Notice a slight oil smell from the heater vents when driving since the flange was replaced. When I open the hood, there is no odd smell noticeable there and everything looks fine under the hood. Just wondering what could be causing this?
I’m not sure what the smell could be. Possibly some oil or coolant dripped on the exhaust when they were working on it and it’s burning off. Hopefully the smell will go away.
Antonio Barrios Sorry about the shaking. I did notice that while shooting. I have MS and get the shakes sometimes. I should have explained that. Glad you liked the video.
my husband just replaced the coolant flange, all of the o-rings and even the clips for the heater hose. my car still leaking coolant like crazy, have to fill it up everyday and it looses withing a couple of hrs. do you have any ideas of what it could be?
Hmm. He should pressure test it like shown. Get a mirror and look back there. It is hard to see back there with everything together. Good luck. Let me know.
+Randy Templeton He pressured tested it and it was at 15. He thinks is leaking at the intake gasket (maybe?) or maybe a blown headgasket? I am also getting an exaust smell inside the car when my heat is on. it is not leaking as much any more but it is leaking a bit. do you have any ideas?
Any chance you would know where the hvac coolant valve is on the vehicle? It’s the valve that controls the coolant flow to the cabin heater radiator or heat exchanger? Thanks for the video!
I recently replaced my lower radiator hose on my VW Passat 2.0t believing it was an old hose needing replacement and it turns out the O Ring in flange T shaped may be leaking down that hose. My previous hose leaked but this one now is leaking like hell. You have any tips that may help me get back on the road ? Don’t want to be leaving spit trails down the road.
Nice video, thanks. Do you happen to know the part number for the heater core hose o-ring? I think it's the blue one in the video. I can't find the part number for it. I have a 2003 1.8T as well.
That was tricky for VW to find. Sorry I should have mentioned that it was not available by itself, you have to buy the entire hose. But I think the parts man could see the size of the oring in his illustration and found it that way. Or he broke the hose assembly down in his parts list and found it. Can't remember exactly what he did. But he had the oring.
Hey Randy: Great videos. I have a 2004 Passat which appears to be leaking from the timing cover. Have you ever run into this? Seems weird to me. Any ideas? Thank You
Douglas Burnett It’s probably the water pump. The front bumper cover has to be removed and the whole radiator support has to be pulled forward for access to the front of engine. It’s sounds complicated but if you know exactly what to remove it’s really easy.
@@randytempleton5797 Yep, that was it and it was fun. I hear that Volkswagen is going to make you put all 2020 and newer vehicles into service mode just to fill the tank.
My daughters 2005 Passat has this issue. When I put coolant in the reservoir it immediately leaks out the back of the top of the engine. Question I have is how far can I drive the vehicle in this condition? Car is at her apartment and they dont allow people to work on it. I wanted to drive it to my house which is about a 15 minute drive but don't want to risk damaging anything else. I see where people here have commented on how they no longer have to add coolant every three days so it sounds like it's still mobile and can maybe make that trip?
Should be alright, I've driven my car atleast 20 Kms after finding out about the leak. Not ideal but you should be safe. Make sure your reservoir is full before heading out and even stop half way if necessary
whitwi Depends how fast it leaks out. Check the coolant level and drive it a few minutes and then check it again. If you drive it to your house then stop and check it and fill it if needed every few minutes. If you can keep some coolant in the reservoir, you should be fine to drive it 15 minutes.
Amy idea what would cause that piece to fail? I have hot steam coming from somewhere that each time this part gets replaced it fails about a week later. Garage said there is hot steam coming from somewhere that is cutting a little hole into that piece. Any ideas? Possibly a faulty aux water pump?
That is really odd. I think that there is a vent line to the reservoir. Maybe it is restricted and not letting the cooling system fill completely. ? Does it overheat?
@@randytempleton5797 they gave me the car back today replaced upper heater core hose and that piece in the video. They said there was too much backed up air in the system that was causing it to turn into water then into steam causing the piece to fail. After these parts replaced i still have no heat in the vehicle and they said the heater core needs to be replaced all together
You might check the vent line like I mentioned. You might try to loosen a heater hose if accessible and purge the air out of the system. I don’t recall if that car has a bleeder screw somewhere to purge the air out of the system, you might look for one.
Nice video.....why did the oil cooler flange need replaced? The reason I ask is my Audi currently has oil in the coolant system and the mechanic I have repair my car said its not the oil cooler, turbo, oil cooler flange and something else but I forget......he thinks it's the head gasket, but the oil is fine zero color ,the oil cap is clean and the engine runs fine never getting hot.
shaggybuddzz it does sound like the head gasket is leaking oil into the coolant. No real way to diagnose that if the other items that you mentioned are ok.
Hi. I just got a 2004 Passat 1.8t which is leaking coolant, but I can't find where it's coming from. Could this be the issue? And if so, what tools do I need to remove/replace everything? I've done some work on cars, but I'm no mechanic. Sadly, can't afford a mechanic, so I have to do this myself.
Nuclear Trinity You might try to get a mirror and look at the back of the head and see if the leak is at the coolant neck. There are a lot of Allen headed bolts, can’t remember what sizes. Sorry.
I had a heater core replaced in my 03 passat; however, my antifreeze still continue to leak out of a brand new coolant. Do you have any idea what this could be? I have been told that there's a little water hose underneath the intake that's causing the leak.
You might follow the heater hoses and see if they go under the intake. Or you could rent a pressure tester from a parts store and see if you can find the leak.
I'm replacing my flange with a cast aluminum version. Heater hose is leaking and maybe flange. After 305K, time to replace both heater hoses and flange.
I was just told my 2005 Passat needs a replacement. I had a timing belt and water pump replaced and right after that I start having to add to my coolant every 3 days. I'm told this will run me about $348 because it's hard to get too. Does that sound about right?
Randy Templeton I've should've watch your video sooner, to save me $315 from a small car shop. But might takes me 2 days or more to complete as oppose to let them finish it in 6hrs. ☺
I’ve got a 2003 Volkswagen Passat that when I turn car off there’s something at the bottom left side of engine directly behind a fog light that keeps running when the car is shut off draining the battery it turns off and on what is this anyone know??
Renaissa Fambrini This is the only Passat that I’ve worked on, twice. I remember that was running, but was several years ago. It finally shut off. But I can’t remember what it was. Sorry.
Renaissa Fambrini Rudi Mallant Google auxiliary water pump and look at a photo of it, see if that looks like what is running on your car. Then read this. forums.vwvortex.com/showthread.php?5367013-VW-1-8-Auxiliary-water-pump-(Beetle)&=1
@@randytempleton5797 This is a Nightmare for the weekend warrior!! This video Breezes over the combi valve!!.it's got to upside bolts that cannot even except a regular allen wrench or stud without modification to the Allen wrench itself, IE- (banging it in a vice to get the right curve to fit in place) Also you Breeze right over and donot show the replaced blue heater hose o-ring that is crucial to this installation!!!. In fact it's not the plastic valve the fails at all it's just the O-rings. realistically a 7plus hour job. I had my 2001 all apart ready to put back together and I'm realizing the O-rings, I have been shorted by the Volkswagen Guru even though we talked about it endlessly, so now my car sits in pieces on a Saturday night knowing I can't get a Volkswagen heater hose o-ring probably till Wednesday and I'm just wishing I sent the damn car to the shop as I will be out 200 plus dollars for a rental anyway...
Waters Edge I used an Allen bit socket to remove the combi valve, fits right in there. You gotta have the correct tools to make it easy . I did mention the blue heater o-ring needs replaced. The o-ring on the neck is what fails, or the neck can crack. The new neck comes with the o-ring molded into it.
@@randytempleton5797 I ended up beating an allen wrench into a shape that would fit to loosen the combi valve. Volkswagen will fail to mention o-ring comes fixed inside the heater hose. And you might as well replace that heater hose if you're that far back in the engine. Currently on day 4 of my rental. I'll get the heater hose tomorrow from O'Reilly for 12 bucks as opposed to that 140 Volkswagen wanted. One shop wouldn't even let me take a look at the hose to size up the O-ring. VW- redwood city. Went to Volkswagen in San Fran they actually took the heater hose out of the box and showed me the O-ring. After seeing that it was actually part of the heater hose I ordered one from O'Reilly. If anyone's reading this you will need an O-ring from the rear coolant flange to the block which comes with the flange housed inside. Second o-ring you need is for the coolant temperature sensor. The third o-ring you need is in the flange to the hard metal radiator, with the two hex bolts to black metal radiator bar that goes over the engine. And the FOURTH o-ring you need is (housed inside) the heater hose that connects to the coolant flange. Something worth mentioning. Totaling 4 rings in total (One of which comes fixed in the coolant flange to connect to block)and one is a fixed in the heater hose as previously mentioned) The other two, the one for the temperature sensor and coolant flange to the radiator bar will need to be sized and sourced by VW, or if you have the old ones you can size yourself. Hopefully O'Reilly has the right hose for me tomorrow... the hose will be brand new and have a new o-ring in it. As mine is a 2001 the hose neck was leaking as well.
Paulie Kruger I suppose you mean the heater hose o-ring? It is not available separately, you must buy the hose assembly. But the VW parts man was able to breakdown the hose assembly in the parts catalog and get the size and he matched it up.
