Model Year 2026 (MY26) – Confirmed & Speculated Changes

[Lexx]

You guys must be a bunch of younglings lol. I've had extensive time driving recirculating ball steering vehicles (especially Mercedes). And they've all got this play in the center where you can move the wheel an inch or two in either direction without having the vehicle move. My dad's 1970's S class was this way. My 300CE was this way. And my R129 SL500 is also the same way. I do prefer rack and pinion steering systems like on my Porsche 997.2 Carrera GTS, but for an off-road truck like the Grenny, it should be perfectly fine. Throw that adjustable Fox stabilizer on there and adjust the bump stops, and call it a day. As for the ADAS nannies - I'd turn all that crap OFF.

 

[Icgreen3]

In regards to the HVAC system, the two big questions for me are: How good of an improvement has INEOS made to the HVAC system on the 2026 model? How likely is INEOS to fix and improve the older 2023 - 2025 models? As far as I know, INEOS has been replacing the whole unit for customers who have had significant issues with either heating or cooling which is probably a costly repair for them.

Thanks for the post. Are they really replacing HVAC system? My wife has a 2024 with about 10 K on it and that is her biggest grip cold air in the winter hot air in the summer perfect. Oh, we've received from the dealer is put it on auto which does absolutely nothing.

 

[CRH]

Thanks for the post. Are they really replacing HVAC system? My wife has a 2024 with about 10 K on it and that is her biggest grip cold air in the winter hot air in the summer perfect. Oh, we've received from the dealer is put it on auto which does absolutely nothing.

your dealer is useless, they need to keep bleeding the system until ALL of the air is out, not do it just once and say that it's as good as it gets, lazy

 

[Jeremy996]

your dealer is useless, they need to keep bleeding the system until ALL of the air is out, not do it just once and say that it's as good as it gets, lazy

And stupid - the HVAC system does not have enough vertical distance to make bleeding easy - it can, and often does, take multiple attempts, ideally from cold to work.

 

[landmannnn]

And stupid - the HVAC system does not have enough vertical distance to make bleeding easy - it can, and often does, take multiple attempts, ideally from cold to work.

I followed the bleeding/purging procedure 3 times.

It now works fine on auto. A bit slow to react so I have resist the temptation to keep adjusting it up or down until it settles at the set temperature.

 

[Tenac]

I followed the bleeding/purging procedure 3 times.

It now works fine on auto. A bit slow to react so I have resist the temptation to keep adjusting it up or down until it settles at the set temperature.

Is there a link to that process? I did a search but to my skills cannot get it to show up.

 

[CRH]

I followed the bleeding/purging procedure 3 times.

It now works fine on auto. A bit slow to react so I have resist the temptation to keep adjusting it up or down until it settles at the set temperature.

You do have to be patient with it and don't get it hot for too long as you need to cool it to get working 'normally'' again.
I like to cook my feet but after 30mins or more of full heat on my feet it won't operate mid temps unless I blow cold air through everything and cool the cabin.

 

[CRH]

Is there a link to that process? I did a search but to my skills cannot get it to show up.

Rok_Dr’s Exceedingly Unofficial Owner’s Manual Supplement​

• Thread starterRok_Dr
• Start dateMay 24, 2024
• Tags
  owner owner's manual

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[COLOR=rgb(252, 252, 253)]Rok_Dr[/COLOR]​

Grenadier Owner

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• May 24, 2024

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UPDATED 6 January 2026. (v11). New Link Follows: Refer to post #219 in this thread for changes.

https://drive.google.com/file/d/1h1cQima5pDmet0eCV5W2VBxWOcBsxRpn/view?usp=sharing

UPDATED 8 November 2025. (v10). Refer to post #215 in this thread for changes.

UPDATED 25 September 2025. (v9). Refer to post #192 in this thread for changes.

UPDATED 5 August 2025. (v8). Refer to post #183 in this thread for changes.

UPDATED 8 February 2025. (v7a). Refer to post #154 in this thread for changes.

UPDATED 2 December 2024 (v6). Refer to post #137 in this thread for changes.

UPDATED 8 October 2024 (v5). Refer to post #102 in this thread for changes.

UPDATED 24 August 2024 (v4). Refer to post #83 in this thread for changes.

UPDATED 28 July 2024 (v3). Refer to post #64 in this thread for changes.

UPDATED 2 July 2024 (v2). Refer to post #62 in this thread for changes.

UPDATED 3 June 2024 (v1.1). Refer to post #48 in this thread for changes.

Since Christmas I’ve been slowly compiling an off-line document which I can print and put in my glove box that captures information missing from the owner’s manual and other useful bits and pieces.

I’ve now got it to a point where its ready to share with forum members. You can download the new PDF using the following link:

Use link at top of page now

The forum has been a great source of information so thank you all for your efforts. Posts I’ve drawn information from are referenced (if you need further info) and members acknowledged in the document.

I’ll update the link in this post and post an alert in the thread when I update the document. Any feedback, corrections or even additions are welcome. Happy for you to share provided you make acknowledgement to this thread.

If you print it out either use an A5 page and shrink to fit or an A4 booklet in adobe reader print settings..

May you find it useful.

Cheers

Steve
Last edited: Jan 7, 2026