|
850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models |
Information |
|
Heating poor after replacing leaking core matrixViews : 1583 Replies : 14Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Dec 5th, 2023, 19:43 | #1 |
Member
Last Online: May 29th, 2024 22:02
Join Date: Aug 2010
Location: Stockport
|
Heating poor after replacing leaking core matrix
I bought a heater core matrix off eBay last year and undertook the challenging task of replacing it myself, after watching it done on YouTube (a few times). Anyway I thought it was a success, the old one was leaking under the passenger footwell carpet, and now that’s stopped. Unfortunately the heater never really gets hot enough to warm the driver now. The A/C works well, I had it overhauled a couple of years ago, I just really need the heater to work properly now.
It might be related, I noticed that the car’s engine hardly gets up to normal temperature, even after a long drive. By this I mean that the temperature gauge needle doesn’t easily get to horizontal, in the middle of the gauge. It’s an old car, so could it be that the thermostat is faulty? If so, might this be the reason the car’s heating struggles to get warm? I really need a reliable experienced 850/V70 mechanic near Stockport, any recommendations are very welcome. I’ve been badly let down by Hallmark, don’t bother recommending them.
__________________
2007 S80 D5 SE Sport Geartronic 1999 V70 T5 SE Auto |
Dec 5th, 2023, 21:00 | #2 |
Premier Member
Last Online: Yesterday 20:10
Join Date: Sep 2017
Location: STANDISH LANCASHIRE
|
I had a similar problem on my '97 V70 regarding engine temperature:~
The thermostat is changed - also opted for the engine sensor as well, problem solved. Careful with the two stat bolts as they can be awkward- once removed copper grease the threads. This is a straight forward job with inexpensive parts. (Quality after market parts used and fine to date) Good Luck. Bob. Last edited by Bob Meadows; Dec 5th, 2023 at 21:03. |
The Following User Says Thank You to Bob Meadows For This Useful Post: |
Dec 5th, 2023, 22:45 | #3 |
VOC Member
Last Online: Jul 27th, 2024 22:30
Join Date: Jun 2006
Location: Selby, North Yorkshire
|
Definitely worth fitting a new thermostat, but be very careful when undoing the two retaining bolts - don't be tempted to use any force at all. The lower half of the stat housing is made from a brittle alloy, and it will shatter if hit hard.
As for the matrix, my understanding is that some after-market ones don't have the same internal pipework, and aren't as good at radiating heat as the better/more expensive OEM quality ones. Jack |
The Following User Says Thank You to capt jack For This Useful Post: |
Dec 6th, 2023, 09:11 | #4 | |
Member
Last Online: Jul 28th, 2024 22:24
Join Date: Feb 2007
Location: Zagreb
|
Quote:
I replaced mine (10 yrs ago) with Nissens and it's about 25% less efficient At least, it was a fair price...
__________________
[1981...244gld6] - 1992. > 2004. [1997 ... 855tdi] - 2004. > today. [2013 ... V70d3] - 2022. > today. |
|
The Following User Says Thank You to hal9000f For This Useful Post: |
Dec 6th, 2023, 16:00 | #5 | |
Experienced Member
Last Online: Yesterday 22:55
Join Date: Jun 2007
Location: L/H side
|
Quote:
__________________
My comments are only based on my opinions and vast experience . |
|
The Following User Says Thank You to Clan For This Useful Post: |
Dec 6th, 2023, 16:34 | #6 |
Premier Member
Last Online: Yesterday 22:15
Join Date: Jan 2011
Location: Horne (Nr. Horley)
|
Agree with all of the above - sounds like you need a new thermostat (get genuine Volvo and make sure it's fitted the right way round) which will at least get the engine up to temperature - and will probably pay for itself before long in improved MPG.
Also as above, the cheaper heater matrices have fewer cores and fins, and are far less efficient - you get what you pay for. As with most Swedish cars, the original heater matrix in these is super efficient, and will quickly heat the car up toasty warm even in serious minus temperatures.
__________________
Some people are like Slinkies, they serve no useful purpose but they still bring a smile to your face when you push them downstairs. |
The Following 2 Users Say Thank You to Luxobarge For This Useful Post: |
Dec 26th, 2023, 20:35 | #7 |
Member
Last Online: May 29th, 2024 22:02
Join Date: Aug 2010
Location: Stockport
|
😩 ugh. I watched and re-watched Robert DIY’s great video on how to do this job, and thanks to all of your helpful comments here, I thought I was up for this job.
Unfortunately one of the screws was going nowhere. It even broke my new T40 wrench, bought specifically for the job 🤦🏻*♂️. Further attempts only achieved me stripping the screw, so I tried to drill it out, and also tried using those drill bits for removing broken screws. No luck. I’m thinking I might try cut the screw top into a “bolt” shape with my Dremel, so I can try a wrench, but I’m not feeling confident now, particularly because of the very confined space. Probably end up taking it off to Hallmark next week.
__________________
2007 S80 D5 SE Sport Geartronic 1999 V70 T5 SE Auto |
Dec 29th, 2023, 20:32 | #8 |
Premier Member
Last Online: Jul 28th, 2024 11:57
Join Date: Oct 2004
Location: London/West Country
|
Hi all,
If a bolt snaps when removing the upper part of the thermostat housing (as has happened to Arnold), is it possible, easy or advisable to unbolt the lower part of the thermostat housing from the engine block (with the upper part still attached)? https://www.skandix.de/en/search/?q=thermostat&k=740 (Set up may vary according to model and year etc) Steve
__________________
V70 V70 2.4D D 5244 T (E4 engine) 2401cc 163HP manual six speed 2006 blue V70 2.5 Turbo AWD Man. 1999 Red C70 T5 Auto Conv. 2000 Blue V70 2.5 Turbo AWD Auto 1998 Green Last edited by SteveSarre; Dec 29th, 2023 at 20:35. |
The Following User Says Thank You to SteveSarre For This Useful Post: |
Dec 30th, 2023, 07:22 | #9 |
Member
Last Online: Yesterday 09:14
Join Date: Nov 2018
Location: bolton
|
can highly recommend bryn motors in wigan , ask for alex . tel 01942 711112 , they have done work for me and im fussy they are honest and very know their stuff on volvos
|
The Following User Says Thank You to staffy460 For This Useful Post: |
Jan 4th, 2024, 00:45 | #10 | |
Member
Last Online: May 29th, 2024 22:02
Join Date: Aug 2010
Location: Stockport
|
Quote:
I’ve only further stripped the outside of my newly shaped bolt by trying. I called a local garage and they will charge me £75 per hour labour to do it, which burns my arse!
__________________
2007 S80 D5 SE Sport Geartronic 1999 V70 T5 SE Auto |
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|