Let's get some perspective: Is your Grenadier AC working as it should?

[G-Man]

Who else's AC is batsh1t crazy and randomly blows hot air one day and cold the next on the exact same setting? I don't think the AC system got the attention it deserved during the 1.2 million miles of road testing, that's for sure. I love my new truck but it's the one thing that drives me nuts on pretty much a daily basis as I fiddle away at the controls and I'm surprised Ineos haven't found a fix for it yet. I gather it's down to sticky solenoid valves or such like and is probably an expensive warranty concern for them.

It would be useful to set up a poll on this forum and get an idea of what percentage and numbers of owners here have flaky AC. This forum must represent a decent amount of the Grenadier owner population, perhaps it would help sharpen Ineos' perspective on the issue if it popped up on every Google search relating to Grenadier AC issues. I don't have the ability to raise a forum poll but maybe @Stu_Barnes would consider it a worthy exercise

 

[Baron von Teuchter]

Just chiming in to say my Grenny takes about 7 hours to pump out some lukewarm air. In summer, the cold air coming out is OK’ish but not super cold either.

Based on this thread it seems like there’s not really any solution.. other than to accept that the HVAC system in the Grenadier is just crap?

Definitely something wrong. Mine can give ferocious heat in -15C air temp. Was 30C here last weekend and the AC was too cold. Sounds like yours needs coolant system checked over and bled - there is a specific procedure they do.

Just for clarity, mine is not perfect, trying to get it somewhere comfortable in between too hot and too cold is tricky at times

 

[Mike Morrison]

Your off-road screen shows engine oil temp?? Mine doesn't. Can someone in the US confirm?

Only on the diesel vehicles not petrol

 

[Mike Morrison]

Our vehicle is 6 weeks old 1600km in and as someone here pus it, the a/c works well until it doesn’t. Kinda works ok around town but after a 5hr trip it went schizophrenic so MY25 has still not been sorted.

 

[Skydance]

Definitely something wrong. Mine can give ferocious heat in -15C air temp. Was 30C here last weekend and the AC was too cold. Sounds like yours needs coolant system checked over and bled - there is a specific procedure they do.

Just for clarity, mine is not perfect, trying to get it somewhere comfortable in between too hot and too cold is tricky at times

My experience of the HVAC is exactly like yours. I’ve taken the lower foot vent apart panel and lagged the area of the pipe recommended and there is still small drips of water but only on a hot humid day.

My other conclusion is the condensation drips is dripping from inside the foot vents caused by the blend door open inbetween hot and cold. Today, the AC was freezing cold so cold it can caused the front windscreen to condensate on the outside (set at 23 degrees). Set at 25 degrees, hot roasting air blows out of the rear vent. It’s weird to say the least.

 

[HugoB]

Don't lose hope @HugoB. I previously worked with some public servants that spent 7 hours and 36 minutes each day pumping out lukewarm air so your situation could be worse.

I think there are a number of owners that have had success after cooling system bleeding and an A/C gas leak check and recharge. This is for an improvement in temperature not regulation control - different problem.

I assume this is a warranty situation to have the system checked and/or recharged?

 

[Clark Kent]

I assume this is a warranty situation to have the system checked and/or recharged?

The cooling system bleeding is a straightforward DIY task. Instructions are here.
The AC is also dependent on the low pressure/temp cooling circuit so I would do that bleed then reassess the A/C performance. If it's still naff then an A/C service is a warranty claim if it proves to be leaking or low on gas.

 

[HugoB]

The cooling system bleeding is a straightforward DIY task. Instructions are here.
The AC is also dependent on the low pressure/temp cooling circuit so I would do that bleed then reassess the A/C performance. If it's still naff then an A/C service is a warranty claim if it proves to be leaking or low on gas.

Thanks, I had no idea. I'll try the top-up and bleeding procedure first. Looks like it may need to cycle through that a couple of times, based on other people's experiences.

 

[eric janssens]

Who else's AC is batsh1t crazy and randomly blows hot air one day and cold the next on the exact same setting? I don't think the AC system got the attention it deserved during the 1.2 million miles of road testing, that's for sure. I love my new truck but it's the one thing that drives me nuts on pretty much a daily basis as I fiddle away at the controls and I'm surprised Ineos haven't found a fix for it yet. I gather it's down to sticky solenoid valves or such like and is probably an expensive warranty concern for them.

It would be useful to set up a poll on this forum and get an idea of what percentage and numbers of owners here have flaky AC. This forum must represent a decent amount of the Grenadier owner population, perhaps it would help sharpen Ineos' perspective on the issue if it popped up on every Google search relating to Grenadier AC issues. I don't have the ability to raise a forum poll but maybe @Stu_Barnes would consider it a worthy exercise

Eric Doumoulin from Belgium, my AC and blower don’t work.
Have now 20 k , and 2023/12, what’s happening ?

 

[scottyboy436]

Bit late to the party , but my AC works flawless in the heat that the UK is seeing this year , only thing is that it is hard for it to keep a constant temp

 

[Tenac]

Sorry I did not read the entire thread, but my AC finally has had this issue. However I can repeat the issue every time, can someone test this on your ride too???

Note: I do not yet have the new software update.

So I had a quick quick pit stop to get some fuel. I had about 1/2 tank and stopped to top it off. I stepped out to fill the tank quite quickly as I could (running short on time). Jumped back in and quickly insert key right to start. AC first started out cool but went to warm, as I drove i tired all the buttons to no solution. Arrived at my destination for a few hours and left AC was working fine.

About a week has gone by I did the exact same thing and bam No AC after fill up. Now at first I thought it was due to my quick to start, so after I parked for a bit I started up normally and AC was back. Drove home and next day I got in started it fast and AC worked.... Well a couple weeks went by had to fill up and thought I would try it again and sure enough fill up, quick start = no AC for me.

I think I'm going nutz here lol but does anyone mind trying that out for themselves.

 

[Bobcat Sig]

Interesting, @Tenac. I've only been able to get my QM HVAC to act up once.

After dinner, we jumped in the truck and quickly set off. I left the HVAC controls as they were when we left the truck to go in for dinner. Once on the road, it was quickly apparent that only hot air was blowing out of the vents, no matter the HVAC setting, temp, or otherwise. Fortunately, the evening was cooling off, so the windows open kept things tolerable.

I have not been able to duplicate it just yet. I'll have the dealer look at it next week.

 

[Skydance]

Q

 

[Tenac]

Interesting, @Tenac. I've only been able to get my QM HVAC to act up once.

After dinner, we jumped in the truck and quickly set off. I left the HVAC controls as they were when we left the truck to go in for dinner. Once on the road, it was quickly apparent that only hot air was blowing out of the vents, no matter the HVAC setting, temp, or otherwise. Fortunately, the evening was cooling off, so the windows open kept things tolerable.

I have not been able to duplicate it just yet. I'll have the dealer look at it next week.

Dang, interesting detail I forgot I always leave the AC as is never adjust and not in auto right now either.

 

[davo]

My first engineering job years ago was with a tier 1 automotive supplier in Australia which made Air Conditioning systems for various OEMs. The major types of testing we did during development of those systems were:

• WInd tunnel testing - mostly checking the heating and cooling performance (so heating the vehicle interior up after soaking the vehicle to -30degC or cooling down the vehicle with AC after soaking the vehicle to 40dec C - I think my ineos does pretty good in those areas.
• Linearity testing - where we measured cabin vent temperatures to make sure that the vent temperature responds linearly with the temperature knob position - a quick scan of the last 18 pages suggests that there are lots of situations where Ineos performs pretty crap. I am pretty sure there is some sort of temperature PID controller wind-up happening when you set the temp very high or low (or when you start the vehicle which has been soaked very hot or cold) too.
• Airflow testing to make sure that the appropriate air flow rate comes out each vent depending on the blower fan setting and foot/face/demist vent setting - the bit which annoys me the most is the leakage of air out the demist vents when the face vent setting is selected and you have cold air coming out - I find (Brisbane Australia so mostly warm and sometimes humid) that too much cold air comes out the demist vents onto the windscreen and I get a patch of condensation fogging up the windscreen.
• Various test for the automatic climate settings - for me that does not work well. In my other car I just set to 22.5degC and never touch it and am mostly comfortable - In the Ineos the temp never seems to be right - so you keep on fiddling with temperature and airflow settings to try to make it comfortable.

Just feels to me like Ineos didn't have a great specification for their air con system, or they ran out of time to develop it properly.
Hope it gets improved with software updates but I wont hold my breath...

 

[Mike Morrison]

Ja, but the tested the prototype vehicles for over 1.1 million miles…..
Interesting how in the brochure they wax lyrical about all the attributes of the vehicle but not a word about the HVAC system

 

[Zimm]

Ja, but the tested the prototype vehicles for over 1.1 million miles…..
Interesting how in the brochure they wax lyrical about all the attributes of the vehicle but not a word about the HVAC system

whats not mentioned is other vehicles get tested for 10million.

 

[Zimm]

Bit late to the party , but my AC works flawless in the heat that the UK is seeing this year , only thing is that it is hard for it to keep a constant temp

I'm Corn'fused.

 

[landmannnn]

My first engineering job years ago was with a tier 1 automotive supplier in Australia which made Air Conditioning systems for various OEMs. The major types of testing we did during development of those systems were:

• WInd tunnel testing - mostly checking the heating and cooling performance (so heating the vehicle interior up after soaking the vehicle to -30degC or cooling down the vehicle with AC after soaking the vehicle to 40dec C - I think my ineos does pretty good in those areas.
• Linearity testing - where we measured cabin vent temperatures to make sure that the vent temperature responds linearly with the temperature knob position - a quick scan of the last 18 pages suggests that there are lots of situations where Ineos performs pretty crap. I am pretty sure there is some sort of temperature PID controller wind-up happening when you set the temp very high or low (or when you start the vehicle which has been soaked very hot or cold) too.
• Airflow testing to make sure that the appropriate air flow rate comes out each vent depending on the blower fan setting and foot/face/demist vent setting - the bit which annoys me the most is the leakage of air out the demist vents when the face vent setting is selected and you have cold air coming out - I find (Brisbane Australia so mostly warm and sometimes humid) that too much cold air comes out the demist vents onto the windscreen and I get a patch of condensation fogging up the windscreen.
• Various test for the automatic climate settings - for me that does not work well. In my other car I just set to 22.5degC and never touch it and am mostly comfortable - In the Ineos the temp never seems to be right - so you keep on fiddling with temperature and airflow settings to try to make it comfortable.

Just feels to me like Ineos didn't have a great specification for their air con system, or they ran out of time to develop it properly.
Hope it gets improved with software updates but I wont hold my breath...

I certainly wouldn't argue with your experience. However, I might have mentioned this earlier, but since the IG system is based on the BMW HVAC it has inherited their flaws.
Google X7 Aircon issues and you will find similar commentary.

 

[LeeroyJ]

Dang, interesting detail I forgot I always leave the AC as is never adjust and not in auto right now either.

If this happens, do this (note that after you exit the vehicle and lock the doors, the computer takes 3min and 35 seconds to go to sleep, it needs to do that for this to work):

Post in thread 'AC / heat in rear seat'

Aug 22, 2024

I hadn't seen this thread before or I would have responded earlier: I had the same problem and had my Grenadier shipped to the dealer twice, they were not able to solve it. Eventually through trial and error I found a work-around that avoids the issue.

You are now a pilot - you have a pre-departure and pre-shutdown procedure you must follow, here it is:

1) Before starting the Grenadier confirm:
All three HVAC dials are turned completely counter clockwise (i.e. fan off, full cold, front vents selected).
Turn the ignition one click (i.e. before the turning the engine)
Allow all the...

• LeeroyJ

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