HVAC

[Stealthn]

How many total miles on it? How long have you owned it? Any previous owners?

104 km, first owner

 

[Stealthn]

OK just got off the phone with service, they said they have had this (zero function on HVAC) 5-6 times now where the issue is too much of the protective coating on the ground points for the HVAC system. They clean off the ground points and it fixes this issue. I am bringing it in tomorrow and they said it takes about 10 minutes so I will report back if it fixed the issue. Should be still cold enough tomorrow to full test.

 

[Sammyd]

104 km, first owner

Sorry to hear this. New car should not be without a functional HVAC.
Warranty is good to have (and expected) on a new vehicle, but one should to have to use it so soon.

The MY 2024s seem to have a lot more issues than the 2025s.

Unless there is a world wide product recall for the HVACs and they are replaced, these vehicles will be avoided in the future and will have much worse resale Values compared the 2026s+.

In 3-5 years when one is looking for a used Granny, why would anyone buy a 2024/2025 vs a 2026 or later model? It’s unfortunate that the HVAC cannot be remedied as easily as the steering.

 

[OkGo]

I have noticed the colder it gets the more likely the HVAC will fail to produce heat

 

[derek_zoolander]

2024 Trialmaster 25k miles. All stock except for a roof rack. Coldest setting with Air compressor switch on, is cold...... next notch is VERY warm, anything to the "right" (clockwise) from there, and its just full heat. Basically no adjustment at all. Either you have air conditioning, or full heat. I have a 1995 F800 truck with a mechanical slide lever that works better than this. If they put the temperature sensor in the duct after the fan/damper controls, and let us set the temperature of the air coming THROUGH the system, it would be much better.

I had this issue in my 24. Have you checked your coolant levels? Topping mine off and running the bleed procedure has fixed it for me.

I do think I've got a bad hot coolant tank too b.c there is some discoloration at the center seam and it appears to have lost some since filling about 3w ago. Taking it in for annual service tomorrow and have this on the list to be checked

 

[Roach]

Has anybody requested through formal channels (email to Lynn C or maybe Mark T in the US) about extending the factory warranty for the HVAC?

 

[ryanjl]

Would the HVAC issues make you all go with a 2026 over a 2025, even with around an effective $8,500 premium?

 

[CRH]

Would the HVAC issues make you all go with a 2026 over a 2025, even with around an effective $8,500 premium?

And more of the nanny state feature

 

[CRH]

I have noticed the colder it gets the more likely the HVAC will fail to produce heat

Someone suggested it was it a similar system to air source heating in a house, and we know how good they are if it's not 100% insulated and sealed up

 

[Skydance]

Would the HVAC issues make you all go with a 2026 over a 2025, even with around an effective $8,500 premium?

Mines ok now, drives as smooth as butter. It’s fixable with time, purging and coolant top up. There is some serious air pockets in the system.

I would not give anymore money to Ineos if they can’t fix an existing vehicle no matter how good it is. The way they handle things is beyond belief. If they want my loyalty, then they must fix everything single vehicle upto a certain minimum standard. I look back on my snagging list when I first bought my car in 2023 and it’s a couple of pages long and I’ve fixed most of them myself from this forum because it’s not convenient to travel 1 and 3/4 hours to my nearest dealerships only to be told it’s normal or there is no fix.

Also the nanny bongs are a big distraction and a safety issue. I know how to drive safely. Most older folks in this customer segment don’t want all this nanny stuff but I do understand it’s government legislation. There is more things to go wrong and break. Hope Trump reverses it all. Let us enjoy driving.

 

[Sammyd]

OK just got off the phone with service, they said they have had this (zero function on HVAC) 5-6 times now where the issue is too much of the protective coating on the ground points for the HVAC system. They clean off the ground points and it fixes this issue. I am bringing it in tomorrow and they said it takes about 10 minutes so I will report back if it fixed the issue. Should be still cold enough tomorrow to full test.

Did the hvac issue get resolved at the dealership?

 

[TD5-90]

I treat it as a manual system by only selecting,
- floor vents or floor/dash (never defrost)
- temp selection
- fan speed
- AC as required

Same. Exactly.

 

[TD5-90]

keep doing it, and driving. It takes a long time to clear all the air, a long, long time

HVAC worked well after several times of topping up & purging. Then I got my diesel heater installed: They inevitably had to open the system. Result: Trapped air. Several purge cycles & several 100kms necessary to restore reasonable heater function again.

 

[AlexN]

Too be honest......that should be a recall and not me doing the procedure over and over again which I have not yet. At the price we pay this should be working. Mine is a 24 with around 5000KMs on it. For us Canadians.....driving in -20C without anything is not funny. I love my Trailmaster...but for the money I spent.....I expect more from INEOS.

 

[Sammyd]

If the purging and refilling the coolant tanks is effective (and more cost efficient than replacing the entire HVAC unit), why don’t the dealerships do this to the remaining 2024/2025s on dealer lots and ones coming in for service? Just have an official recall and remedy this issue.

The official Ineos policy seems to be either:
Don’t ask- Don’t tell
Or
Ignore it and it will go away

 

[CRH]

If the purging and refilling the coolant tanks is effective (and more cost efficient than replacing the entire HVAC unit), why don’t the dealerships do this to the remaining 2024/2025s on dealer lots and ones coming in for service? Just have an official recall and remedy this issue.

The official Ineos policy seems to be either:
Don’t ask- Don’t tell
Or
Ignore it and it will go away

I think the problem is that it needs more than just bleeding, it needs to be run over a period if time to get all the small amounts of air out. One IA mechanic did mention to me about a pressurised kind of kit for bleeding the system but I don't think the dealers do it??

 

[samnt650]

How far is your dealer.
Can you arrange to deliver at a time that they will immediately send a technician (mechanic) out on your arrival so that your truck is operating as you explained. I did this in the early days of problems and dealers not really being aware.

Dealer spent a week, trail & error, shimming certain flaps & controls w/ the air con system, manage to get the vibration part "resolved" however the front / rear heat problem is a feature., not a bug.

 

[CRH]

Dealer spent a week, trail & error, shimming certain flaps & controls w/ the air con system, manage to get the vibration part "resolved" however the front / rear heat problem is a feature., not a bug.

The front and rear is not a feature, it will eventually work once all the air is out and any leaks in expansion tanks are fixed. Mine took about 25,000+ miles to fix fully. Not right that they are like this, they need to find a better system to clear all the air but it is what we have and the good news is it is fixable, it's just never a great system.

 

[Tom109]

The front and rear is not a feature, it will eventually work once all the air is out and any leaks in expansion tanks are fixed. Mine took about 25,000+ miles to fix fully. Not right that they are like this, they need to find a better system to clear all the air but it is what we have and the good news is it is fixable, it's just never a great system.

Agreed. I had the super-hot rear condition 2-3 times over the Summer of 2024 and it was resolved by the dealer.

 

[Sammyd]

Would love to see a YouTuber compare the HVAC temps (at the various vents) on a “fixed” or functional 2024/2025 vs. a new 2026. They would need to start from cold on a very old or hot day and measure the temps at certain time intervals and also compare the various settings on air flow (front face, feet..).
Same can be done for the turning radius and turning effort for a MY 2024/2025 stock, vs with aftermarket (Fox) stabilizer, vs a 2026.