How to: Volvo C30 S40 V50 C70 Coolant Expansion Tank Replacement
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- Опубликовано: 13 сен 2018
- How to change the coolant expansion tank on a Volvo C30. The same procedure also applied to the S40, V50, and C70 models as well. Over time due to the heat and age, these tanks can become brittle, crack, and if excessive can leak. Mine isn’t to the point of leaking, but I have noticed some light cracking so I’d rather just be safe. From what I’ve found, aftermarket replacements don’t tend to fit well or are cheaply made, so for this I have stuck with an OEM unit. #volvo #volvoc30 #volvos40
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Tools/Supplies Needed:
-water bottles
-turkey baster
-hydrometer
-interlocking pliers
-new coolant tank
-new coolant
-distilled water
Procedure:
-make sure the engine is cool when doing this, you’ll need to remove the cap and then remove most of the coolant in the tank
-I used a turkey baster for a majority of the coolant and then a hydrometer to remove what little was left
-my coolant was between the minimum and maximum markings, so roughly 750ml of coolant was removed from the tank
-the old coolant can be reused if you put it in a clean bottle, I just purchase a jug of concentrate coolant from the dealer instead
-once there is minimal coolant remaining in the tank, using interlocking plier, remove the clamps on the two top hoses
-after they have been removed, the hoses can be pulled off
-gently grab onto the hose and give it a slight twist to help it remove, these can sometimes stick in place
-this can be a little difficult, place a rag on the edge of the fender in case you slip, it can be sharp so it reduces the risk of harming yourself
-if you find the hoses are cracked or deteriorating, they may need to be replaced
-after they have been removed, direct the tops up so coolant doesn’t drop out
-pull up the tank, this takes a little force
-it just clips into place on the inside of the fender and in front of the shock tower, some wiggling might be needed to help assist it up
-when that tank is disconnected, you can remove the rear hose
-again there is another clamp, using the interlocking pliers, remove it and push it back
-pull off the hose and direct it up so it doesn’t drip coolant
-the tank does have baffling, so it can still have coolant inside, be careful so you don’t dump any remaining coolant out
-there is a little tree debris left under the tank, so I’ll give it a quick vacuum before putting everything back together
-first start by installing the lower hose
-these hoses have notches where they align with a tab on the connection
-pull the clamp back into place
-now clip the tank back into place
-this will take a little force, you can probably use some like lubrication that won’t damage the plastic or paint such as a silicone spray
-push on those two last hoses, these too have notches which need to be aligned with tabs on the connections
-reinstall the clamps using the interlocking pliers
-for replenishing the tank with coolant, I just purchased some from the dealer, they sell it in a judge which comes in a concentrated glycoil
-this is then mixed with distilled water
-distilled water is needed as it does not contain any additives which may cause build up or corrosion in the engine’s cooling system
-you can also reuse the old coolant if you wish
-try to keep it a 50/50 ratio between coolant and water, I have kept the level just below the minimum line, this will allow us to verify the mixture and determine if it needs to be adjusted when tested with a hydrometer
-leave the cap off, then start the engine, turn the heater to the highest setting and allow the vehicle come up to operating temperature
-monitor the coolant level, the existing and newly added coolant should eventually mix
-turn the engine off, allow it to cool down, and then check the coolants boiling and freezing points with a hydrometer
-the freezing point should be at -37C, -35F or lower
-the boiling point should be at least 106C, 223F or higher
-if the freezing point is too high or the boiling point is too low, then add more glycol
-when the coolant is cool, ensure the level is between the minimum and maximum lines, reinstall the cap and you’re done
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Replaced the resevoir on my 2008 S40 with the help of your video. I greatly appreciate the explanation quick and easy!
Awesome to hear and thank you for the feedback :)
This was great info for me as I have a Volvo S40. I recently had an issue with the sunroof drain. And had I seen this tip It woulld have save me an very expensive fix. So ANY Volvo tips are very welcome.
Thank you for the feedback :) I'm slowly working up a library of Volvo tutorials.
Many thanks for such a valuable information about this section, I really need it to understand.👍👍👍 so good explanation
Happy to help and thank you for the feedback :)
Very helpful,thanks for your knowledge and expertise 🙏
Thank you so much for the kind words!
I replaced my tank a while back after I noticed it was starting to crack on the top. After market part fits ok.
Thanks!! Very informative video!! 👍 Appreciate it.
Thank you :)
Thanks for a great video. Could I just add, the pliers you used are difficult to move the clips, I tried it with mole grips which was a lot easier. Cheers
Thank you for the kind words and great tip as well!
Thank you
Great video. Do you need to vacuum bleed the system when replacing the coolant? I am going to flush the whole system
Thanks mate
Any time!
Thx...
Which Airline did you use to fly or steward for?👩✈️
Did you need to “burp” the coolant system after the install? Or does it largely do it on its own while you are topping it off?
If thank looks fine,please check O-ring on the cap-you will have puddle of fluid under the car by the wheel ?Replacing O-ring will fix the issue!
And what about purge the system, any screw to bleed air?.
Thanks for your video. Mine is cracked so planning to change the tank only. i have a question. If i use old coolant or buy a new antifreeze mixture (already mixed with distilled water) still i need hydrometer to check?
No problem! The hydrometer will be able to provide an accurate reading for the condition of your existing coolant once you've topped up the system. They're not overly expensive, but can protect your engine from the risk of having the coolant boil or freeze. As a safety precaution, I'd recommend it.
Just followed this tutorial on my 2011 C30 (114K miles). The old tank was only 3 years old when it developed cracks along the top above the "max" mark. It conveniently started leaking while I was on vacation about 500 miles from home, though fortunately there was a store nearby where I could get some extra coolant to top it off.
My local mechanic wanted $200 to replace it, so I did it myself for $80 in about 20 minutes.
I got the part from a dealer for about $65, but I saw that FCP Euro sells one from Nissens for $35, and they mark it as OEM. Would that be a good option too?
Nissens could be who makes the tank for Volvo, I'm not sure on that. Lots of other manufacturers have their parts outsource to other companies. If you purchase that company instead of the manufacturer's part, you can save quite a bit.
Aftermarket tanks and coolant are often a poor choice, but much more economical. You did a good job, but why did you not replace the coolant. It has a strange color
Thank you! Coolant will get replaced when I do the timing belt which is on the list of many things to do lol.
Great clip can you drain all coolant and is it is it recommended to do so.
No need to drain all the coolant for the expansion tank. If your coolant is old or doesn't past a test, then I would recommend flushing it and adding new coolant.
Hello! Thanks for this awesome video. Is it possible for you to link to the OEM reservoir unit? I'm having trouble finding it on volvo's website. Thank you!!!!
oop nevermind! found it
No problem, always happy to help! IPDUSA is the place I usually order my Volvo parts from, cheaper than the dealer and also OEM parts. I do have plenty more videos for this car too :)
@@4DIYers Thanks! I'll definitely check out more videos when I need to do more repairs! :)
Gr8 video as usual. Can you point me to the location of the transmission temperature sensor? I have same truck as yours.
Which truck? I have the Tacoma and Ram.
My technique to syphon out the fluid is a soap pump or a lotion pump…😅
Hi i have two questions? How tight does the cap have to be after putting coolant in it?
Why would of the tank blew up wild the car been park with the ac on?
Just hand tight. The tank blew because the plastic was most likely fatigued with spider cracking. The ac wouldn't have caused it, it was just coincidental.
I can not fill it with new coolant without measureing and adding water after replacement? As I don't have the measure tools.
I got a same question here.
Do you know why the antifreeze inside the expansion tank gets so hot ?
EVO X this liquid literally cools off your engine. It’ll be hot for sure. Don’t open when it’s hot.
If I’m adding the new Prestone coolant liquid for Volvo, do I still need to check with the tester as I don’t have that kit.
You should just to be safe and the ratio is correct.
@@4DIYers thanks a lot!
Is it really safe to run the engine with lid off? Also if i replace the tank can I use old lid?
Perfectly safe. Don't remove the cap when the engine is hot though. Only remove it before starting the engine. I used the old cap as well.
Should have listened to that tip on putting the towel on the body when pulling the pipes off 😅
Why not using an antifreeze that doesn't need to be mixed with water !?? ..
For whatever reason Volvos are finicky about what coolant to use, so many of us stick with the OEM stuff to play it safe. Its really not a bad price and it's easy enough to mix with distilled water. There ARE good aftermarket coolants out there but I havent wanted to risk it. On my Chevy? Whatever. It can take anything. Lol.
Where did u get it from
It can be purchased from IPDUSA.
I use baked beans