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A Better Way to Diagnose a Coolant Leak on an E46 BMW!

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Radiator Pressure Test Kit: http://amzn.to/2jNtbtq My mailing address for correspondence or swag of any kind is on my about page. This video is for entertainment purposes only. 50sKid assumes no liability for any repairs or modifications performed by the viewer as a result of the information contained in this video.
Category: Транспорт
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Text Comments (65)
TheDefiant1 (28 days ago)
Thank God for your channel.... Had the same Exact leak....
Nicolas Fernandez (3 months ago)
My coolant leaks from like the middle of the engine behind the water pump? If you want i could record it, upload it, and show you. Im having trouble
andy moore (1 month ago)
@Nicolas Fernandez thanks I'll probably replace that with the coolant pipes if I do it. Just got an offer for 1k for my 2001 BMW 325i. Think I might take the offer of 1k instead of fixing it
Nicolas Fernandez (1 month ago)
@andy moore it was the collent pipe directly under my intake manifold, since i fixed thag i started having vaccuum leaks
andy moore (1 month ago)
I haven't tested mine yet but I think the same is happening for mine. Have you figured out what the problem was for yours?
doe life (5 months ago)
@50skid Where can i get that cooler kit you mentioned in the beggining?. To delete the one I have. I have a 04 330xi
Terrence Cross (5 months ago)
2:28 side hose 😂
mrsteel10213 (1 month ago)
Terrence Cross TSHOT
petronovich30 (6 months ago)
when i open the reservoir and fill it it squirts on the inside back into the reservoir
Michael Murphy (10 months ago)
What was actually leaking?
1rewd1 (10 months ago)
OT a bit from the video, but I have a question maybe you can help? '05 325xi, lower hose from heater control valve to (?) has split and I need to replace. Seeing as to the location I figure the best thing to do i replace all the coolant lines located in that area, under all the crap (intake manifold, etc). I can't find any diagrams or DIY's about these lines, just the 'front end' ones I've already replaced. Any help? Thanks
And War (11 months ago)
HI 50sKid, again great vids, your intake valve cover vid was great I dont have a oil buring mess, but im not loosing coolant at a high rate, but I dont see any water leeks, so wanted to know what I need to look for
And War (11 months ago)
HI 50skid, I live in the UK, we have had a huge heat wave over the last 5 weeks weather over 33C and I took my car on a 7 day road trip through europe, do you think the heat could be a cause? thanks again
And War (11 months ago)
dam, if its the cracked head then the car is going to die, ill try to look today, do you have any pointers of should I check all the coolant connectors, thanks again
50sKid (11 months ago)
There's either a leak somewhere you're not seeing or you might have a cracked cylinder head and you're losing coolant into the combustion chamber.
Dopamine P (1 year ago)
According to bentley manual you are suppose to pressurize it to 21.75psi and it should not drop more than 1.45 psi for at least 2 minutes..
TonyS (1 year ago)
I bought this tool for my 528i w/ an m52 engine and based on Jason's recommendation. A few notes: @ 15 psi I couldn't detect the leak but at 21 psi, and according to Bentley specs, I found and heard the leak. Secondly, I used cap #5 and was pensive tightening the cap to the expansion tank because I didn't wan't to strip any plastic. While pressurizing it leaked around the cap and I tightened accordingly until it felt super hand tight - but it still slightly leaked coolant. I was able to still pressurize system to 21 psi, although the psi didn't drop low enough over two minutes to merit an immediate repair it did reflect the small leak that was causing me to lose about a one and half cups of coolant over a two week period. My leak was coming from the thermostat housing.
Quartz Nation (1 year ago)
I can't find the beefy orings that go on the underside of the expansion tank. small and large. The ones I find at the store are too thin to seal. Do you have any sources for these proprietary particular orings?
Heino 87 (1 year ago)
Would you recommend a brass bleed plug on the top radiator hose?
DoN Mayor (1 year ago)
can you rent the tool at a autozone?
Christopher Salas (1 year ago)
50skid, based on your recommendation I was going to oreder the tool in the this video. I looked on Amazon with no luck in the description of applicable vehicles, will this work on the newer sized expansion tanks like used on the E90 with the larger style caps?
isme dennis (1 year ago)
Hello , thanks for the video. I am having overheating problems with my bmw e46 . I suspected a leak on the pipes and also the head tester appeared to be yellow.... Please I want to know if is the coolant leak causing the overheating or if my head gasket is actually blown.... because I am actually in doubt of the head tester results. Thank you.
Darius Douglas (1 year ago)
Hey nice video but I have a quick question wen I put new coolant in, and ounce I put coolant in the car ,the car started runnin hot before I drove a Half a mile down the road and when I lifted the hood it was smokin from the intake I think wat do you think? Do you think i need a new intake or do you think I need new hoses and also I have 2 codes po171 and po174 that’s the vacuums leak do you think it’s all a connection
Darius Douglas (1 year ago)
So you think I need a new ccv
50sKid (1 year ago)
yeah concentrate on the 171/174. You have a vacuum leak somewhere
Jelani Perry (1 year ago)
I have a coolant leak from the same area that you just highlighted in your video. Its dripping from that lower hose above the cowling u removed. It looks to be coming from where the expansion tank sits, the side that has the smaller o ring on the expansion tank, I replaced that ring and its still leaking. Could it be the mounting bracket where the tank sits? There's no drip from above its like seeping out and dripping from the lower hose going to the radiator like in your video.
50sKid (1 year ago)
If only you had a tool that would pressurize your system and show you exactly where it's squirting out. ;-)
Tue Bui (1 year ago)
How did you fix the leak, showing in your video, 50Kid? It looks like a join between expansion tank radiator connector
Shutto (1 year ago)
nice and straight forward video
Cd D (1 year ago)
Is there a pressure tester specific for e46? Can I just modify my pressure bleeder to perform the same task?
50sKid (1 year ago)
It's just a specific adapter for the overflow tank
Andrey Damianov (1 year ago)
When I bought this coolant system pressure tester several months ago, the #5 adaptor did not fit the expansion tank - the O-rings were just a bit too large. Glad to see they have fixed them.
eric strada (1 year ago)
I'm not sure what is more frustrating about owning an E46 -all the little shit that goes wrong or that you need to order every f'g part because local auto parts stores don't stock what you need and the dealer wants 5x more than you can buy it on Ebay. Dumbest GD car purchase I ever made.
Jabraan (5 months ago)
Just shop on fcpeuro
blackyonder (7 months ago)
its a 17 year old car duh its gonna need some attention and no your local shop wont have its parts lying around!
Wallace Harding (1 year ago)
How much pressure should you generally put into it before you start finding leaks. If there is no leaks , when to stop before you cause one. ?
50sKid (1 year ago)
15psi is what most radiator caps are calibrated at.
Slayer Bot (1 year ago)
Hey question, are 1.2t jack stands sufficient? My floor jack is a 1.4t as well. Are they enough?
50sKid (1 year ago)
I would get 2 ton jack stands just for safety
Mike Savage (1 year ago)
Nice Tool & Video. I bought a fitting that connects one of the bleeder screws to my portable air tank (also a great tool) and put 15 lbs into the system..found a leak in the radiator...
50sKid (1 year ago)
gentoolive (1 year ago)
Good tool that you will use more often than you'd like.. I got so sick of chasing coolant leaks, and the car coming home on the wrecker because of the coolant system i got fed up and just traded in my 330ci.
john a ramirez (1 year ago)
fifty bucks and one minute diagnosis. i'd say that's a good buy.
vviiper (1 year ago)
Omg this would have been so useful when I did my watercooling system overhaul. I had one annoying leak that I just couldn't spot and it took forever to diagnose. This would've sorted me out nice and good
Hamid Hariri (1 year ago)
584 and proud of it!
Harbor CBS (1 year ago)
Take a tip from someone who knows, if you own an e46 thats more than 10 years old and you have a leak, plan on changing EVERYTHING thats made of plastic that comes in contact with the part that you NEED to change. You can't remove one part with out breaking two other plastic parts! I don't know why BMW plastic is so brittle after time but it's very frustrating to have to change three parts when only one is cracked. I guess what I'm saying is ...Plan ahead. Expect to make that trip to the parts store several times or just buy all the parts the first time. Good luck!
Niamh Healy (1 year ago)
I've been looking out for one of those! Deffo a must for BMW's lol
JiTengful (1 year ago)
Break my wallet
James Bruce (1 year ago)
Can you use that tool to force drain the coolant from the whole system?
Oliver Navarro (1 month ago)
Not possible
James Bruce (1 year ago)
thanks, about to replace cooling system and AC system as well as oil pan gasket and some other goodies on an e46. Thanks for the videos!
50sKid (1 year ago)
sounds plausible to me
Ace Rothstein (1 year ago)
Nice tool, i've got just the fitting for the reservoir and diy'ed something with a hand pump. Basically the same but cheaper. Excellent for bleeding stubborn cars too..
Marc KaPunkt (1 year ago)
I tried to find the leak with such a tool, but i failed. You can only use this on a cold engine, right? Can you pressurise the whole system with a closed thermostat?
Marc KaPunkt (1 year ago)
Ah OK, thanks :) I had a few leaks, the damaged thermostat gasket was quite difficult to spot.
50sKid (1 year ago)
Yeah never a good idea to remove the radiator cap on a hot car, but once it's open you can use it. You can pressurize when the thermostat is closed because the system isn't closed on the other end.
an0nakin (1 year ago)
Keep doing what you doing man, you are the best youtuber for e46 cars. People keep mentioning your name in bmw Facebook groups showing your videos you should be proud for that!!thanks for all and keep up the good work!!
50sKid (1 year ago)
Ahhhh, I didn't know he quit. Wow. Yeah man I am honored to be in that company. I think ETCG will be back, for sure, I've been talking to him.
frogmanvc (1 year ago)
The mechanic oc... He says he is temporarily stopping...Took down all of his vids to reedit them. Eric the car guy stopped making vids completely and I think scanner danner. I myself like you, I like autofix pal, I like old skoolfunk, I like realfixesfast, I like rachets and wrenches, I like Chrisfix, and a few others.
50sKid (1 year ago)
Which OC guy left YouTube?
frogmanvc (1 year ago)
50s I agree with an0nakin. The OC guy uped and left YouTube. That radiator kit is nice. But some vehicles it will not fit. On those vehicles you have to either make your own adaptor or buy one. I don't know where to buy adaptors for the kit. I have seen guy/s on youtube make them using radiator cap and a rubber tire thing(air filler thing). Just a reminder I love homemade tools and equipment. Especially for autobody and PDR work. If you know someone who wants to make something. Even a frame bench, I can help with that. I love your smoke machine. Now that's cooooool!!!!!
Rocky LR (1 year ago)
yeah, you can say that again
alex delgadillo (1 year ago)
damn almost first
theboringuy (1 year ago)

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