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      05-24-2020, 02:51 PM   #1
matthewk
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Difference between rear axel and GVWR: with and without 3rd Row seating.

In the BMW specifications it lists different specifications for rear axel load and gross vehicle weight with and without 3rd row seats. I have looked but cannot find any different chassis parts, axels, suspension, etc which are either different or reinforced which explains this load capacity difference. Does anyone have any ideas?

I have a 2020 G05, M-Sport, air suspension, without 3rd row seats, and I plan to tow a small travel trailer with it. I am curious about improving cargo capacity, and if there is part difference within the 3rd row package I can implement.

Without 3rd row.
Approved rear axle load lbs/kg 3,616/1,640
Approved gross vehicle weight lbs/kg 6,162/2,795

With 3rd row.
Approved rear axle load lbs/kg 3,858/1,750
Approved gross vehicle weight lbs/kg 6,691/3,035

Basically with 3rd row the car can carry 500# more cargo/people.

Any thoughts would be appreciated.
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      05-26-2020, 12:14 PM   #2
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The 3rd row only comes with air suspension. Perhaps the air suspension can take more weight than the x-line or m-adaptive suspensions?
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      05-29-2020, 02:57 AM   #3
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There is no GVWR and rear axle rating difference for vehicles with air suspension but no third row.
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      05-29-2020, 02:59 AM   #4
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Here are the tech specs:


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      05-30-2020, 07:06 AM   #5
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Quote:
Originally Posted by Mr. Maboomba View Post
There is no GVWR and rear axle rating difference for vehicles with air suspension but no third row.
Yes, the point of my question. I understand the specs, but I can't find a single part difference other than the seats themselves which explains the difference.
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