Volvo 850 Heater Matrix How To (P80 V70 Heater Core)

How to replace the heater core / heater matrix in your Volvo 850 or V70. Not the hardest job in the world, but fiddly and a bit messy. You don't even need too many tools, just a screw driver, T15 torx, T25 torx and some basics. Hope the video either helps or entertains you! #volvo #howto #mechanic
Here’s the full list of videos on my Volvo 850 Tdi, purchased for just £250…! We replaced out 940 Turbo with this car as our main family car, and it has been a labour of love. I really adore this car.#Volvo #Volvo850 #Restoration #CarBuild #ClassicCars
Volvo 850 TDI Restoration Part #1 -
Buying the car, the history and a tour of Expedition Campers
• Volvo 850 Restoration ...
Volvo 850 TDI Restoration Part #2 -
Stripping the interior ready for wheel arch rust repairs
• Volvo 850 Restoration ...
Volvo 850 TDI Restoration Part #3 -
Repairing the rusty wheel arches and painting the floors
• Volvo 850 Restoration ...
Volvo 850 TDI Restoration Part #4 -
Clearing the Drain Holes under the Windscreen and Sunroof
• Volvo 850 Restoration ...
Volvo 850 TDI Restoration Part #5 -
Replacing the Indicators, Side Lights and Side Repeaters
• Volvo 850 Restoration ...
Volvo 850 TDI Restoration Part #6 -
How much have I spent to get my Volvo 850 TDI MOT'd and Safe?
• Volvo 850 Restoration ...
Volvo 850 TDI Restoration Part #7 -
A fun summer evening building a new exhaust for the Volvo, plus a look at my recent underseal job!
• Volvo 850 Restoration ...
Volvo 850 TDI Restoration Part #8 -
Painting the plastics to improve the exterior looks... despite being told never to paint them.
• Volvo 850 Restoration ...
Volvo 850 TDI Restoration Part #9 -
Getting the windows tinted and going for a chameleon front screen
• Volvo 850 wagon gets 1...
Volvo 850 TDI Restoration Part #10 -
A review of the car after a 4,000 mile European tour
• Volvo 850 TDi 4,000 mi...
Volvo 850 TDI Restoration Part #11 -
Replacing the leaking heater matrix
• Volvo 850 Heater Matri...
Volvo 850 TDI Restoration Part #12 -
Winter updates… new headlining, new pipework, new heater matrix
• Volvo 850 TDi Project ...

[@RobertDIY]

Screw at 8:01 is suppose to be in the bottom of the matrix securing the pipes.

[@Dunkelzeitgeist]

Don't even have my 850 yet but here I am, the binge of Geoff continues 😅

[@bastogne315]

I've been watching car resto programs for 5 years. That is the first time I've seen anyone change the heater matrix....how cool is that😊😚😃🙏

[@GeoffBuysCars]

Glad to have taken your heater matrix virginity!

[@Lot76CARS]

Although fiddly it looks a lot more straightforward that I’d envisaged from the horror stories online. A useful video GBC, if only to reassure the faint hearted home mechanics!

[@GeoffBuysCars]

I gather the heater matrix on this car is easy when compared to some others! Was made easier by the fact i've had my carpets out so many times...!

[@volvoRman]

I should have mentioned when I sent you the link on facebook; when I changed my matrix, I totally flushed my cooling system with clean water first, so all that was spilled inside was water, and only added antifreeze when I was sure there were no leaks.

[@GeoffBuysCars]

Yeah this did cross my mind, but knowing my luck i'd have filled it with clean water then got stuck or had to do something, and then it would have frozen solid in the cold....! i've taken it a drive out and all seems to be honky dorey, very pleased to have sorted this!

[@bastogne315]

Just watched Robert DIY...is there something strangely mesmerising about his presentation??

[@GeoffBuysCars]

I dunno, he’s just been doing it for years and there’s nothing on p80 volvos he doesn’t know it has filmed!

[@leechristopher5403]

Good testing job their Geoff. Thanks for another interesting vid. Stay safe 🤙🏻

[@bsales3101]

Geoff, you barbarian. You've chopped your underlay out. Matrix exits the drivers (right) side. I actually thought it was impossible to get it out the left side. 😬 Good vid. 💪

[@bastogne315]

Future Islands..watching yesterday's episode. That dance!

[@bsales3101]

There is no requirement for sealant or gasket on the joint you mentioned between the core end moulding and the white pod it sits in.

[@bastogne315]

I love the floors..just love em.😍🥰😍🥰😍🥰💛💙🇮🇪

[@GeoffBuysCars]

me too!

[@davidlukey5189]

To the me watching this again 4 months from now, you thought you were so smart putting that radweld in to fix the matrix, but you knew this day would come.

[@GeoffBuysCars]

it wasn't too bad of a job, just a little messy and requires some interesting yoga moves

[@davidlukey5189]

@@GeoffBuysCars my kids do gymnastics. I'll be sending them in with a socket set and your KZbin video.

[@delukxy]

The old bolt hole is for the amp bracket if you have one. It has a mate on the other side.

[@twig3288]

Go ahead and pull those T25s then follow the step by step instruction for completing the task in hand 🤗

[@bsales3101]

Mahle Behr is OEM with the word VOLVO ground off.

[@guignolification]

Thanks for the video Geoff, I thought about changing the tubes to the connection and the connection in the firewall as well when I change the radiator.

[@GeoffBuysCars]

I considered this too, but then I figured, if it ain't broke... The 'quick coupling' and the pipes themselves are available from Volvo.

[@guignolification]

@@GeoffBuysCars Yes they are. My thought is, that part lasted 26 years, if I change it now, I don't have to worry about it again in my life. But you are absolutely right, I am not so fond of changing working parts.

[@GeoffBuysCars]

@@guignolification I think if mind had been an early car with steel pipes, i'd have changed all of it, but the ally pipes seem fine

[@charlie225]

Hey Geoff great job mate,, I dont understand Robert makes these jobs look so easy!

[@GeoffBuysCars]

It must be practice! I went back to his video about 20 times while doing this 😂😂😂

[@djtaylorutube]

Heater matrix is ok, now do the AC evaporator, that's a pain. :)

[@crazyforcars]

Now you proofed to be ready to get a job in a Volvo workshop 😉.

[@GeoffBuysCars]

Ha, maybe one day eh?

[@crazyforcars]

@@GeoffBuysCars I hope not, unless you keep going with GBC 😁.

[@SuperFIFTHGEAR]

Not a job that I'm looking forward to when/if I ever have to do it. Good that you managed to do it. What made you realise it was leaking there? Wet carpets? 👍

[@GeoffBuysCars]

Yeah, I did a video on all that but it's so god damn boring I haven't finished the edit yet as i'm confident no one wants to watch it, ha ha

[@matthewwiddows6319]

a 2l bottle with the base cut off and a puppy mat does wonders to keeping the floor dry!!

[@GeoffBuysCars]

Yeah I could have been better prepared for that part of the video, ha ha! I'd read in a few places that not much drains out.... wrong. It was pretty much all of it. Once I'm sure it's fixed, i'll get some new insulation and install the carpets. Excited to have it back on the road, I have another video coming on this car with a few other bits i've been tinkering with.

[@bastogne315]

Does the blue Volvo not fail the mot with that hole in the wing?

[@GeoffBuysCars]

Nah it's not MOT zone, even without a sticker on the wing. It's not sharp and poses no danger.

[@850glt]

Nice easy job for a double jointed contortionist who is 3' tall

[@GeoffBuysCars]

Oh exactly. I should have taken a photo of the position I was in to get the top screw in, you can't even see that screw in any of my video...

[@850glt]

@@GeoffBuysCars I bruised my ribs lying on top of the sill upside down and inside out when I changed mine...

[@bastogne315]

Last bit looked really awkward.

[@GeoffBuysCars]

Yeah there was a lot of film that was edited out, loads of farting around and wiggling it to try make it work!