G05
BMW X5
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2 days agoLAST POST
11-26-2025
Thanks for reposting my videos - it’s great PR for how calm and composed the X5 handles a 33’ trailer. If I were you, I would stop talking about towing before the embarrassment spreads any further.

Now, on your speed fetish: you have very limited towing experience, we established this already. However, if you would spent five minutes on actual RV forums, you would know that seasoned RVers consistently cite 60–65 mph as the sweet spot for towing, REGARDLESS of state. It’s not about flooring it in dad’s pickup; it’s about keeping things safe, stable, and fuel efficient. You know, the stuff real towers care about.

Your obsession with speed screams "teen who just got his license and wants to redline dad’s Corvette". Real towing isn’t Fast & Furious - it’s smooth, stable, and uneventful. Which, judging by your posts, is still a mystery to you.

Polo08816 wrote
No doubt! Let's re-hash this too while we're at it.

bono's user avatarbono has posted videos (two?) of himself driving so slowly on US interstates that people have had to pass him in the right shoulder while there is a line of cars and a 18 wheeler trying to pass him in the left lane because he doesn't have enough tow vehicle to keep up with the flow of traffic on US interstates. He would have you believe that it's because of some towing speed limit in California, but he's logged 60,000 miles of towing and all of it is only in California?




Here are most of his videos and the common theme is that he just doesn't have enough of a stable tow vehicle to even keep up with 18 wheelers on the interstates:
11-26-2025
bono wrote
Thanks for reposting my videos - it’s great PR for how calm and composed the X5 handles a 33’ trailer. If I were you, I would stop talking about towing before the embarrassment spreads any further.

Now, on your speed fetish: you have very limited towing experience, we established this already. However, if you would spent five minutes on actual RV forums, you would know that seasoned RVers consistently cite 60–65 mph as the sweet spot for towing, REGARDLESS of state. It’s not about flooring it in dad’s pickup; it’s about keeping things safe, stable, and fuel efficient. You know, the stuff real towers care about.

Your obsession with speed screams "teen who just got his license and wants to redline dad’s Corvette". Real towing isn’t Fast & Furious - it’s smooth, stable, and uneventful. Which, judging by your posts, is still a mystery to you.
Oh, I actually prefer you to keep repeating yourself so your embarrassment continues to perpetuate in this thread.

I also want people to keep watching the videos that you're referencing to demonstrate how the X5 (or any other similarly sized tow vehicle) just isn't enough tow vehicle for that type of trailer to keep up with traffic on US interstates. The music isn't helping your cause either.


You've also been avoiding my other question:
Polo08816 wrote
Both tooloud10's user avatartooloud10 and myself have both a half ton pickup AND a G05 X5, and our "lived experience" tells us that the F150 is more the more stable towing platform. We are in a position to provide a side by side comparison, you're not. You only own one of the two options that's being discussed. We own multiple BMWs and yet we're not nearly as delusional as bono's user avatarbono to think that our G05 X5 tows better than our half ton pickup.

To that end, I also have a F25 X3 35i and it has a lower COG than my G05 X5, shorter rear overhang, adaptive suspension, and simply handles better than my G05 X5. Does that make my F25 X3 35i a better tow vehicle than my G05 X5?
By your logic, wouldn't my F25 X3 35i be a better tow vehicle than both my G05 X5 and F150 since it handles better, has a lower COG, has a shorter rear overhang?
11-28-2025
Our present tow vehicle is a 2018 35d Msport with rear air suspension. It has approximately 130,000 miles on it and about half have been towing in the West. The trailer we tow is an Oliver Elite II, weighing aproximately 5,700 lbs. loaded and we use an Andersen WDH. We average almost 20 mpg towing and 35 mpg otherwise.

The 35d has been an outstanding tow vehicle for us! Power, braking, downhill engine braking and MPG have all been great but most of the emissions warranties ended at 120,000 miles and I just got a $1,600 estimate to replace the particulate sensor to “see if that is the only problem”.

It looks like it may be time to purchase our next tow vehicle, and we don’t want to miss out on the present X5’s styling, the idrive controller and the split tailgate. We also suspect the new G65 will again increase in size and that would force us to have to park on the street, which is not acceptable to us.

I value everyone’s opinion, but we are not interested in any other vehicles and we do clearly understands everyone’s opinions regarding the “appropriateness” of our present and future set-up.

Please keep the discussion centered around the specific question I am asking.

Thank you all in advance.

Andrew
11-28-2025
Flocke wrote
Our present tow vehicle is a 2018 35d Msport with rear air suspension. It has approximately 130,000 miles on it and about half have been towing in the West. The trailer we tow is an Oliver Elite II, weighing aproximately 5,700 lbs. loaded and we use an Andersen WDH. We average almost 20 mpg towing and 35 mpg otherwise.

The 35d has been an outstanding tow vehicle for us! Power, braking, downhill engine braking and MPG have all been great but most of the emissions warranties ended at 120,000 miles and I just got a $1,600 estimate to replace the particulate sensor to “see if that is the only problem”.

It looks like it may be time to purchase our next tow vehicle, and we don’t want to miss out on the present X5’s styling, the idrive controller and the split tailgate. We also suspect the new G65 will again increase in size and that would force us to have to park on the street, which is not acceptable to us.

I value everyone’s opinion, but we are not interested in any other vehicles and we do clearly understands everyone’s opinions regarding the “appropriateness” of our present and future set-up.

Please keep the discussion centered around the specific question I am asking.

Thank you all in advance.

Andrew
No need to post the same question in multiple threads. So your other post for some information.
11-28-2025
Thanks for that.

I wanted to make sure it was seen by everyone who has input.

Andrew
11-28-2025
bono wrote
Let me break it down real simple: neither you nor your buddy has towed anything close to the edge of the X5’s capability, let alone a full-size travel trailer. Meanwhile, I have done thousands of real miles with a 33’ camper and one finger on the wheel - and posted the videos. Not anecdotes. Evidence.
LOL for years I managed a construction equipment rental branch—a company you’ve almost surely heard of. My company truck was an F250 diesel, which was the lightest vehicle we were supposed to tow with.

In a pinch they’d allow the sales reps to tow small loads with their F150s but I’d have been laughed out of the yard if I showed up with an X5.
11-28-2025
People may laugh, sure. There’s a lot of ignorance out there when it comes to towing, and you can see it even in this thread. The truth is, ignorance doesn’t replace actual knowledge or experience. "LOL"
tooloud10 wrote
(...)
In a pinch they’d allow the sales reps to tow small loads with their F150s but I’d have been laughed out of the yard if I showed up with an X5.
11-28-2025
What hitch setup are you using? The standard F15 hitch wasn’t designed for a WDH, so I am curious what configuration you have. Even though I think the 50e is the stronger option for mountain towing, with a trailer that light the 40i would be more than capable.

Also, just a note on air suspension - while it doesn’t redistribute weight between axles, I think it is nice to have for towing for keeping the back of the vehicle level.
Flocke wrote
Our present tow vehicle is a 2018 35d Msport with rear air suspension. It has approximately 130,000 miles on it and about half have been towing in the West. The trailer we tow is an Oliver Elite II, weighing aproximately 5,700 lbs. loaded and we use an Andersen WDH. We average almost 20 mpg towing and 35 mpg otherwise.

The 35d has been an outstanding tow vehicle for us! Power, braking, downhill engine braking and MPG have all been great but most of the emissions warranties ended at 120,000 miles and I just got a $1,600 estimate to replace the particulate sensor to “see if that is the only problem”.

It looks like it may be time to purchase our next tow vehicle, and we don’t want to miss out on the present X5’s styling, the idrive controller and the split tailgate. We also suspect the new G65 will again increase in size and that would force us to have to park on the street, which is not acceptable to us.

I value everyone’s opinion, but we are not interested in any other vehicles and we do clearly understands everyone’s opinions regarding the “appropriateness” of our present and future set-up.

Please keep the discussion centered around the specific question I am asking.

Thank you all in advance.

Andrew
11-28-2025
bono wrote
What hitch setup are you using? The standard F15 hitch wasn’t designed for a WDH, so I am curious what configuration you have. Even though I think the 50e is the stronger option for mountain towing, with a trailer that light the 40i would be more than capable.

Also, just a note on air suspension - while it doesn’t redistribute weight between axles, I think it is nice to have for towing for keeping the back of the vehicle level.
We have an unreinforced Curt receiver hitch, recommended by Andy Thomson at Can Am. We are also using the Andersen WDH and it moves about 150 - 180 lbs. forward to the front tires. With that set up and the rear axle air suspension, the handling and ride are very good.

I like the idea of the increased CCC of the 50e but I am not sure how the plug-in hybrid will help if I can't charge while traveling on multi-week, 4,000+ mile camping trips. It is my understanding the suspensions are the same between the two except for the 2-axle air. If that is the case, adding the 2 axle air suspension should increase the CCC significantly on the 40i.

I am also concerned about going from diesel to gas and the loss of engine compression holding us back going downhill. I don't know if the regenerative braking is a game changer for towing downhill?

I have had both the 40i and 50e as loaners and wasn't impressed by either in their ability to hold the vehicle back going downhill. Maybe I am missing something with how to get the most out of the regenerative braking on the 50e?
11-28-2025
Flocke wrote
I am also concerned about going from diesel to gas and the loss of engine compression holding us back going downhill. I don't know if the regenerative braking is a game changer for towing downhill?

I have had both the 40i and 50e as loaners and wasn't impressed by either in their ability to hold the vehicle back going downhill. Maybe I am missing something with how to get the most out of the regenerative braking on the 50e?
No, you aren't missing anything. The regenerative braking is not like on EV's where you can stop the vehicle.
12-01-2025
Thanks again — that makes total sense with your hitch setup.

On the plug-in hybrid question - when I tow with the 50e, I typically use HOLD function at the start of the trip to keep the battery fully charged. When I am in the mountains (Yosemite, Mammoth Lakes, etc.), I will try to use some battery capacity so I have at least 1/3 depleted - that way I can recharge the battery to full on the descent.


On the regenerative braking question - I have towed extensively with both the 35d and 50e, including mountain regions like Yosemite, Tahoe and Mammoth. Honestly, I don’t notice a major difference between the two when descending long grades. In both cases, I usually just drop the transmission into 3rd gear and rarely need to touch the brakes - even on multi-mile descents.

I am not sure how much regen contributes when towing - I assume most of the braking force still comes from engine braking rather than the electric motor. Either way, the downhill control has been more than sufficient in both setups from my experience.

If I were in your shoes and planning longer trips without access to charging, I think your idea of going with the 40i plus 2-axle air suspension is a great move (if you can spec it with the air suspension).
Flocke wrote
We have an unreinforced Curt receiver hitch, recommended by Andy Thomson at Can Am. We are also using the Andersen WDH and it moves about 150 - 180 lbs. forward to the front tires. With that set up and the rear axle air suspension, the handling and ride are very good.

I like the idea of the increased CCC of the 50e but I am not sure how the plug-in hybrid will help if I can't charge while traveling on multi-week, 4,000+ mile camping trips. It is my understanding the suspensions are the same between the two except for the 2-axle air. If that is the case, adding the 2 axle air suspension should increase the CCC significantly on the 40i.

I am also concerned about going from diesel to gas and the loss of engine compression holding us back going downhill. I don't know if the regenerative braking is a game changer for towing downhill?

I have had both the 40i and 50e as loaners and wasn't impressed by either in their ability to hold the vehicle back going downhill. Maybe I am missing something with how to get the most out of the regenerative braking on the 50e?
12-01-2025
Bono,

Thanks! I was hoping you would respond. Based on our similar towing experiences and the fact you tow in the same areas we do, I value your opinion.

Do you have any insight on the addition of the 2-axle air suspension to the 40i and its impact to CCC? I would like to improve the "official" CCC if I can.

From what I understand the suspension of the 40i with the air and the suspension on the 50e are the same. If that is the case, then another reason to go with the 40i.

Thanks again,

Andrew
12-01-2025
If by CCC you are referring to payload, then yes, adding 2-axle air suspension increases payload capacity. For reference, 50e models with 2-axle air typically come in around 1,700+ lbs of actual payload. Non air suspension would have 300–400 lbs lower payload.

Side note (and I know this is a controversial topic): payload isn’t the most critical limitation when towing with a proper weight distribution hitch. In real-world towing, tire and axle ratings become more meaningful constraints than the printed payload figure, since the WDH redistributes weight across vehicle and trailer axles. Payload is much more important for hauling the cargo in the vehicle.
Flocke wrote
Bono,

Thanks! I was hoping you would respond. Based on our similar towing experiences and the fact you tow in the same areas we do, I value your opinion.

Do you have any insight on the addition of the 2-axle air suspension to the 40i and its impact to CCC? I would like to improve the "official" CCC if I can.

From what I understand the suspension of the 40i with the air and the suspension on the 50e are the same. If that is the case, then another reason to go with the 40i.

Thanks again,

Andrew
12-01-2025
Agree and understood.

Thanks again!
01-12-2026
Hello,

Has anyone attempted to install a DC to DC charger for an RV trailer? I have a 2026 X5 M60i and I know the battery is in the rear, so I'm thinking this might be easier than running cables to the engine bay like most cars\trucks.

My concern is in the complexity of the battery connections and the risk of damage to my alternator, battery, or other parts by not properly making the connection to the DC-DC charger.

Has anyone successfully done this and know which posts\connecting points I should use? I included pics of my battery for reference.

Thanks!
An image attached to this post, provided by the posterAn image attached to this post, provided by the poster
01-17-2026
Halfdeaf wrote
So coming back from my excursion to The Coast I had the unfortunate situation of falling asleep at the wheel... Never happened to me before; scary sh*t.

Woke up to see us heading at an awkward angle down a long slope into the ditch in the median of a 4-lane hwy (cruise control on @ 64).

I could feel the momentum trying to tip over - gave it some gas to straighten out, and eventually got the rig back onto the highway where I heard a disconcerting grinding noise.

Got it over to the shoulder without hitting anybody (whew!) and stopped to find I had blown the right side tire on the trailer.

There is NO WAY I wouldn't have rolled over without the WDH. For that matter, I'm not sure my JGC would have made the save... Kudos to the X5!

As for all that extra stress on the chassis of the X5, so far I haven't noticed anything abnormal - drives true, no weird squeaks, moans or rattles...

Embarassing, but I'm really happy to be able to tell the tale!
Kudos to you for sharing this. Most folks only want to share their wins, not their fails/mistakes. If this helps 1 person from dozing off it's worth it!
01-17-2026
bono wrote
Given how rare people get flat tire, full size spare tire is totally irrelevant. More important is that BMW is a great tow vehicle which you would enjoy every second while towing instead of towing with 100 years old design vehicles which handle poorly, but have full size spare.
EZ spare offers a nice beefy spare tire that is ~ 99% full size diameter and wider than most on a 20" wheel. I intend to haul this around on trips. Not saying I'd tow for 500 miles on the thing but I'd trust it over a moderate distance at low speed.
01-27-2026
mn_bmw wrote
Hello,

Has anyone attempted to install a DC to DC charger for an RV trailer? I have a 2026 X5 M60i and I know the battery is in the rear, so I'm thinking this might be easier than running cables to the engine bay like most cars\trucks.

My concern is in the complexity of the battery connections and the risk of damage to my alternator, battery, or other parts by not properly making the connection to the DC-DC charger.

Has anyone successfully done this and know which posts\connecting points I should use? I included pics of my battery for reference.

Thanks!
I have an Orion XS in the trailer, set to 10A, to charge a LiFePO4 battery from the X5. The 7-way connector’s +12V aux in the X5 it draws from is only fused at 15A. If you’re using a wireless brake controller (Tekonsha RF, Curt Echo, …) on that wire to actuate the brakes with only the car’s AGM battery available as the Li one in the trailer should be isolated, you’re already at the limit and a DC-DC charger would overload the circuit. With AGM on both ends it’s not an issue as they can both provide current.
The 12V wire on the dedicated brake controller connector in the steering wheel housing on the other hand is fused at 30A, I would use a wired brake controller on a dual axle (4 electric brakes can draw up to 12-16A) trailer with Li for that reason. Of course it also leaves the 7-way 12V fully available for charging with DC-DC.
02-11-2026
By two screws, the cubby hole comes out and the brake controller harness was right there in my 50e. You can get the necessary parts from ECS tuning for a plug that fits: part #164439 x4 and the male connector #1512776.
Someone made a pretty clear diagram of the wiring order for a Tekonsha harness, which I also attached. Hope this helps someone.
An image attached to this post, provided by the posterAn image attached to this post, provided by the poster
02-17-2026
Lots of good info in here on brake controler, etc. I'm looking for any thoughts around the confusion I'm seeing for a rating to carry a motorcycle hauler on the back of my 2026 X5 x40i. I put on on order SPECIFICALLY to get the factory hitch because I didn't want to have to add a hitch bar on after the fact like I did on my wife's white 2022 X3 shown in the picture. For the X3 I paid $1200 to add a $300 Curt Class III hitch bar, which replaced the rear bar in the X3. I assumed the X3 was rated for 400lb tongue weight so my dirt bike (230lb) and Moto Hauler (60lb) is well under that. It does cause the rear of the X3 to sag a bit but its felt stable and I've used it 6 times and 500 miles last year.

But I decided to get my own X5 with a hitch option so I can haul my own bike in my own car. I went with the X5 assuming it was more substantial than the X3 which the towing spec shows... but my concern is the "Rear Carrier" details in my 2026 X5 owner manual cast a lot of doubt on whether my 290lb Moto Hauler idea is too risky in the long haul.

Here in the US the X5 factory hitch option DOES NOT come with that gooseball-swing thing. It's just a receiver. So why does my 2026 X5 online manual show a ball in the picture on the Rear Carrier page?

Does anyone know how to reach BMW factory to point out silly inconsistencies like this? It would be impossible to put a rear carrier onto a ball?

The tongue weight rating for the X5 (both x40i or M60i) is 551lb according to the online owner manual. But that is for a weight going DOWN at the hitch. A rear carrier extends the weight out behind the vehicle creating a bending moment that tries to rip the carrier weld apart. Now that my factory order 2026 X5 is built and in transit to me I'm worried about what I have done!

Any ideas from those (only in the US?) who have the factory hitch rather than the gooseneck thing?
An image attached to this post, provided by the posterAn image attached to this post, provided by the poster
02-17-2026
BMW has always been vague about towing in the US market. They largely ignore the American hauling crowd - meanwhile in Europe cars like the 5 Series tow regularly (no hitch option in the US). So the manual inconsistencies don’t surprise me.

At 390 lbs you are well under the 551 lb tongue rating. Yes, a carrier creates more leverage than a straight vertical load, but you are not in extreme territory. For context, I have towed 800–900 lbs tongue weight for 70k miles on an X5 with zero signs of hitch stress.

Keep the carrier tight to the receiver, torque everything properly, and you should be fine. Just check any potential sign is stress on the hitch.
02-17-2026
bono wrote
...At 390 lbs you are well under the 551 lb tongue rating...
I fixed a typo above in my math... the combined bike and rack weight is 290lb not 390lb and I'll have to measure but its center of weight is probably 16" from the car which is similar to the 11.8" measurement BMW gives from the ball (if the ball could be present).

I think when you tow a big load with an 800lb tongue weight, that weight is right at the ball, which is 5" from the hitch let's say. Or maybe the ball is further out for a big load like that?

In my case the tongue weight is only 290lb, but its more like 16-18" away from the hitch... I just hope they didn't weld their factory hitch to the bar in a dumb way where it has no twisting strength. By comparison the Curt class III hitch is really beefy for resisting bending and it fastends right to the factory side rails with 4 big bolts.

At this point I can only hope or I will have ordered a big expensive car that requires me to find a way to cover a trailer outside in New England :-(