01 v70 xc heater core replacement

AVIP · Post by **AVIP** » 14 May 2014, 08:12

Few quick questions..

In this ym the heater core is under the dash correct?

The bottom hose is cut in the engine bay

How do I remove the hoses? Special tool or pliers?

Read a good pdf on the repair just want to confirm some things for 2001

Post by **abscate** » 14 May 2014, 11:48

The heater core is contained in the climate unit under the dash. You have to lower it from the climate unit and work it backwards and out.

The hoses are removed with a single screw in the heater core holding the pipes - fitting in at the lower left corner.

Fail advice.....above applies to P80 cars, not OP P2

AVIP · Post by **AVIP** » 14 May 2014, 14:52

Thanks!

You still work it through the kick panel on both sides correct?

Post by **abscate** » 15 May 2014, 03:51

The kick panels come off with a single screw, which gives easy access to the core.

Post by **precopster** » 15 May 2014, 05:37

Totally different setup on P2s. The heater hoses in engine bay are grab tight and compress and twist and they come right off.

Not the same procedure as P80s. Volvo went forward in most ways on these P2s but backward in heater core accessibility.

benrk · Post by **benrk** » 19 May 2014, 10:54

You didn't give the reason why you want to change the heater core, if you have coolant leaking into the drivers footwell, it rarely is the heater core, usually it's the o-rings of the pipes connecting to the heater core.
Access is mechanically pretty easy, you have to remove the panels in the driver footwell & it's all right there behind the climate control module in the center console.
Now the pita starts, you're working with arms & head in the footwell around the pedals, don't even try to save the retaining clips for the hoses, they're near impossible & take forever to work them out in one piece, buy new ones & just cut the old to pieces.
The new o-rings are also near impossible to get in without lubrication, I just coated them lightly with regular chassis grease that I had around, then the pipes slid in with only moderate force, however, I didn't do research on the longterm chemical effects of the grease to the rubber, if the time is available I'd recommend doing research on a lubricant that is chemically safe & neutral to use on rubber.
If you really need to get the core out, you'll have to undo one little screw there somewhere & then I don't know, the steering column is in the way to slide it out, you either have to take that apart & out of the way or there is another trick that I don't know.
There are better write-ups on the interwebs with pics & all, I don't have a link, just google.

Good luck, Ben

alron400 · Post by **alron400** » 23 May 2014, 04:56

Hi guy's,

Yes I just "Love what Volvo did to the Heater Core too" "Not" !!! I have changed mine out in a P2 to a Mercedes A160 Heater Core that is all Alloy (mine is a Right hand drive car in Australia) and it is still really hard to get the core out.

: This is what the replacement core looks like

The removal of the Leaking core in my car was due to the "O Rings on the Core Splitting" and the leak was bad enough to warrant the replacement core, but I did not want to pay the outrageous sums of money that Volvo wanted.

: The replacement unit was "Plumbed in using Heater Piping" and only took half a day to make up.

The problem is that the "Firewall Connectors had also worn and were Leaking as well", so I replaced all of the Volvo Parts out and now have a system that is back to basics and held together with Hoses and clamps and if it is good enough for Mercedes then it is good enough for both of my Volvo's (an 850 T5 Estate and a V70XC AWD Wagon).

: I had to cut out a section of the "Glove box", but I put it back together and fixed it up at the end of the day.

I am now far more confident and I have no more leaks on a car that has done 220,000 km.

I hope all of this helps you.

Catch you on the Open Road.