Complete how to guide to replace the thermostat Volvo 850, S70, V70, XC70, C70, V70R P80 car - REMIX

Thermostat replacement: 30 - 60 minutes ($30 / $90 / $180)
This video shows how to replace the thermostat in Volvo's built between 1992 - 2004, white block vehicles, especially P80 cars, 850, S70, V70, V70 AWD, V70 XC, XC70, C70, 960, S90, and V90.
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Replacement bolt size: M7-1.0 x 30mm
Thermostat PN: 271664
Lower thermostat housing for N engines (850): 1397909
Lower thermostat housing for RN engines (1999-2001): 8692934
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How to remove stripped screw: • How to remove stripped...
What coolant to use: • Which antifreeze coola...
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Disclaimer: • In this video I share ...
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[@simplelife4735]

fr robert you made my car last for some time now , much love hope life has treated you well , my car has 240,000 miles and is still going strong 💪🏻

[@RobertDIY]

sweet

[@TommyMcGuinness]

Thank you Robert. You are my Go To Guru! You have walked me through several of my XC70 issues. I appreciate you.

[@RobertDIY]

You are welcome

[@Twobarpsi]

Watching you change mine was 🤯 Still can't believe you got those 20 year old bolts out 👍

[@RobertDIY]

lol Practice.

[@pg41226]

You’re such a brilliant mech! Ive just bought my first “old”‘Volvo and I can’t wait to work on it once it gets warmer outside 😁 thank you!

[@RobertDIY]

You are welcome.

[@austinvduncan]

Thank your Robert for helping me keep my 99 v70xc alive

[@RobertDIY]

Glad to help

[@MaxKuehn]

Yo Robert, your Video made the journey of replacing the Thermostat easy! Got both bolts out with a long T40 bit without stripping them. The new one doesn't have a pin, but the 850 burped all the air out after a few miles, so i guess it should be ok. Thanks for your advice!

[@RobertDIY]

you are welcome.

[@chemistry636]

Very informative, detailed and well explained. Its great to see.

[@RobertDIY]

Long but right.

[@raffibaho8787]

Thanks for the video, just changed the thermostat on my s70, I have good heat in the cabin now.

[@RobertDIY]

👍🏾

[@potterg04]

Good morning 🌄 Robert and thanks for sharing the proper way to install a thermostat. God bless you 🙌

[@RobertDIY]

You are very welcome

[@stevemccooleq]

Very good advice, pay a little more and get the Volvo OEM thermostat. 5 years later you'll be glad you did.

[@RobertDIY]

Thanks for watching

[@sweet-ish5988]

Thanks Robert.. I bent the teeth on a brand new t40 star key trying to get that back bolt off as described..need to make sure to get a quality tool for it. Mine is coated with the black stuff. Must just be for rust prevention rather than a hardening treatment. Also broke the petcock because righty tighty lefty loosey was opposite.. 😂🤦‍♂️ Ie orientation is opposite..it loosens clockwise if you are facing the front of the car

[@RobertDIY]

I've never seen reverse threads.

[@Absaalookemensch]

Having thermostat issues with both our 1998 and 1999 V70s. Thanks for the video. This helps tremendously.

[@RobertDIY]

You're welcome!

[@Absaalookemensch]

@@RobertDIY Ordered the parts from IPD as well as Left blinker lenses for both. Have no idea why both cars lost the external lens cover in the past year. Your site is wonderful, your a tremendous asset to the Volvo community. Thanks for all the work you do.

[@RobertDIY]

You are welcome

[@BravenR]

Man the upper hose on my 04 c70 is such a pain to take off the housing

[@MaxKuehn]

Are you reading minds? My thermostat on the 850 just started acting up this morning 😄

[@RobertDIY]

🤓

[@awesomeshit2852]

Robert... you are awesome! Thank you and God bless you!

[@RobertDIY]

Thanks for watching and for the blessing.

[@viktorphilipsson596]

Thanks Robert for great videos! Love from 🇸🇪

[@RobertDIY]

Thank you for watching

[@AK47Hunter82]

Thank you so much man greets from Germany

[@RobertDIY]

You're welcome!

[@charlie225]

Thanks Robert this video answered my questions!!!

[@RobertDIY]

You are welcome.

[@tachyonbeam]

Thank you Robert, nice video

[@RobertDIY]

You are welcome

[@alejandrocarcamo4569]

awesome info ,robert you tha man

[@RobertDIY]

thanks for watching.

[@cleantubekey]

Hi Robert, thanks for all your great videos. I've benefited from many of them and I'm very grateful. I decided to do this job on my 99 V70 and the near T40 bolt wouldn't come out. I've completely stripped the inside, because I tried a few different T40 wrenches and eventually it wore away the inside. I further made things worse by trying a stripped screw removing drill bit, to no avail. I was thinking of cutting the round T40 bolt into a 6 sided "bolt head" shape, so I might be able to get it out with a ratchet wrench. Can you suggest any idea that you would do please? Thanks, Rory

[@RobertDIY]

kzbin.info/www/bejne/naWcqGCQiN2mb6ssi=6M3so2hNa-TozePs

[@RobertDIY]

kzbin.info/www/bejne/qKfLXougiMh3la8si=ctK-AsemqpOwDXzG

[@RobertDIY]

kzbin.info/www/bejne/oZ2boISlftmgkM0si=h08LCVDVO5DlKmSM

[@harrycover9180]

What about spraying WD40 sometime before unscewing the T40 screws?

[@RobertDIY]

that might help.

[@SebastianLinnarsson]

Great video man

[@RobertDIY]

Thanks for the visit

[@atomicthumbsV2]

Robert, do you have any tips on how to get the thermostat housing on a '98 V70 out past the power steering reservoir, fuel lines, etc?

[@RobertDIY]

pull the stuff out or use a long tool. Use the alternator video to get the stuff out.

[@mikesalama51]

I checked the fan with the ac on while the car is running and no fan movement also the fuse for the cooling fan was blown and I replaced it to a 30 amp because I couldn’t find a 35amp but still no fan working and I also checked the cooling fan relay next to the radiator The only thing I did not change is the cooling sensor next to the thermostat I will replace it and I will let you know Thanks

[@RobertDIY]

You should test the fan. 🤷🏾‍♂️

[@samihadid2522]

Hi Robert , In this video you have said that the juckle pin must to be in 1 oclock position .. in other video ( with 850) you said that the pin must to be in 6 oclock .. so what is the position is supposed to be ?? I have a Volvo S70 2000 2.4L non turbo Thank you

[@RobertDIY]

1

[@neilkendall4612]

Very impressed Robert, with your knowledge. Where do I find the thermostat on a Volvo V70 2.5d 2001 model? Thanks

[@RobertDIY]

I recommend the Volvo dealer.

[@kristyleitch5553]

omg i cant do this alone its too much and my boyfriend bought me this car before he died ,i now live in it but the water is pouring out can i put stop leak in it somehow ????/ is there any way to fix it without taking it all apart?

[@RobertDIY]

kzbin.info/www/bejne/bn3GfWmkrJp5nKs

[@RobertDIY]

I don't use stop leak stuff.

[@n0tdanish521]

I have a quick question, when I changed my timing belt & water pump on my 97' 850 I realized after I had completed the job that the coolant hose connected to the thermostat housing had no pressure, you could squeeze it like no fluid was in it while the car was running, The car does run great tho, doesn't overheat or has issues on heating up. Could it be a bad thermostat or?

[@RobertDIY]

Is the reservoir full of coolant?

[@RobertDIY]

kzbin.info/www/bejne/mXfHnpKQqbh3oc0

[@n0tdanish521]

@@RobertDIY yes

[@jamesbeard1837]

this is not how my thermostat works on my 02 xc70.the housing bolts are somewhat burried and go in at an angle not down.

[@RobertDIY]

ok

[@redbeak1453]

HI Robert, with the colder weather, my temp(96 Volvo 850T5) is fluctuating between 175 and when I get going it drops to around160. Would this affect the engine? My idle is rough and engine hesitates. Would you replace the ECT at the same time? You mention that thermostats should last around 15 years. I replaced the radiator, ECT and thermostat 6 years ago (60,000 miles) and I only use the blue Volvo coolant 50/50 mix.

[@RobertDIY]

Thermostat.

[@mikesalama51]

Can u add a video on how to test the fan Thanks

[@RobertDIY]

👌🏾

[@carlseiler6441]

Am I missing the replacement bolt specification in the comment/description? Thanks

[@RobertDIY]

Thanks for the reminder. Replacement bolt size: M7-1.0 x 30mm

[@michaelg3670]

excellent!

[@RobertDIY]

Thanks!

[@mikesalama51]

I have a Volvo s70 and it overheated and also loosing the cooling fluid I found out that the clamp on the lower hose of the radiator was loose so I replaced it with a new clamp Also the temperature gauge is always at the 3 o’clock position and I noticed that the radiator fan is not working So this tell me that the temperature sensor is not working properly and is not telling the fan to turn on when the temperature is gets Hights. Please tell me if my diagnosis is correct Thanks

[@RobertDIY]

I doubt it. The fan may be broken. Also, if you overheated the engine it likely has a blown head gasket now. Relay, fan, wiring, temp sensor.

[@RobertDIY]

How do you know the fan is not working?

[@RobertDIY]

kzbin.info/www/bejne/jYmyeZ2bhbqKobc

[@jamesmoore8461]

Hi Robert, is it worth replacing the temp sensor whilst I’m doing the job? If so do you have the part number for the sensor ? Thanks 👍

[@RobertDIY]

I do NOT.

[@stevemccooleq]

If you do that then use only the Volvo OEM temp sensor. I put a Meyle (ordinarily a decent brand for Euro cars) in mine and it failed in less than a year.

[@weirdshibainu]

Hello Robert. I have an 850. Water pump is 2 years old as is the radiator. 2 days ago, the temperature needle rose to maximum.I drove it a few blocks home. The coolant tank fluid was full, very hot. The top radiator hose was warm, the bottom radiator hose was cool. Drove it today a short distance. The temp needle starts at the 3:00 mark and the radiator fan starts running Within a few blocks, the needle again rises to near maximum. Is this a thermostat issue? Thank you

[@RobertDIY]

Probably, but I have not tested the thermostat.

[@RobertDIY]

kzbin.info/www/bejne/naWcqGCQiN2mb6s

[@RobertDIY]

kzbin.info/www/bejne/eKXHmpl3p7iIabM

[@OutdoorBoys100]

Hey robert any tips for when Your only able to get about half the coolant back in you got back out? 98 s70 I drained just ab 5quarts from the petcocks. However when I went back to fill I only got around 2.5 quarts back in and that's with the resivour at max level. It burped maybe half a quart after first drive. Have u ever seen these cars not burp properly ? Just think I'm having serious trouble getting the air out because this is my 3rd time redraining the coolant and trying to get the possible air out, I'm assuming air since have over 2 quarts extra lol. I drove it around for 5-10 mins and it went down. Let it cool topped off drove again and doesn't go down anymore. Just astonished that there's so much extra coolant even after driving it once shortly

[@RobertDIY]

The end of the video explains how I feel the system.

[@OutdoorBoys100]

@@RobertDIY I definitely watched the ending part however you stated you were able to get all of your old coolant back in. Where as for my situation I am not able to get it all back in even after driving it around . Still have around 1.5-2 qts extra from the initial drain . That's what I was hoping to get ur opinion on .I just don't wanna be harming the motor since I believe I am missing almost 2qts

[@850are2]

Hello. Your previous thermostat video said put the bleeder pin towards the front of car. This video says 1 o’clock position. FCP video says orientation dosent matter.?

[@RobertDIY]

OK

[@850are2]

Just trying to figure out if it makes a difference. Your advice is what I trust

[@jamesmoody9363]

JOHN 3:16 😊

[@RobertDIY]

ok

[@Backwardlooking]

👍🏻

[@RobertDIY]

Thanks

[@EscargotGaming]

At 16:00, you mention that you’ve never heard of a Volvo thermostat breaking, but in a video you made 7 years ago about this process (kzbin.info/www/bejne/bJWzinyqrqxjoqsm55s at 4m 55s), you mention that Volvo thermostats break, too. Was the broken one in that video not actually a Volvo thermostat? EDIT: I see now. You’re saying that you’ve never heard of them breaking and *getting stuck closed*. That makes much more sense! My bad

[@EscargotGaming]

Also, at 4m 35s in that earlier video (kzbin.info/www/bejne/bJWzinyqrqxjoqsm35s), you mention that the thermostat should be oriented with the weep hole facing the front of the vehicle, but in this video, you install it facing the back. FCP’s video (kzbin.info/www/bejne/a2rQlH-oiNp3oMkm10s) says the orientation doesn’t matter. What do you think?

[@RobertDIY]

They break but don't overheat the car.

[@RobertDIY]

I am going to delete the older video with the bad info. Not sure if it matters, just want to do it right when possible.

[@Sac_slappper_4rce]

Hi Robert! I just changed mine on my C70 and in a previous video you said the pin should points toward the front of the car instead of 1 o'clock like in this one. Sorry to be a pain in the butt. I just want to be sure. Thanks again Robert! Video I'm referring to: kzbin.info/www/bejne/bJWzinyqrqxjoqs

[@RobertDIY]

Yes, that was wrong info I got from a forum.

[@RobertDIY]

It's not the end of the world but next time you are in there fix it.

[@Sac_slappper_4rce]

@@RobertDIY I will. Thanks for your time and God bless!!