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      10-26-2021, 05:11 AM   #1
James_G0540i
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Replaced my 30D with a 40i

I've been a big advocate for my 30D Diesel, but I've just replace my 2019 30D with a 2021 40i, and WOW what a car and what a motor.

I didn't mind the 30D, it had heaps of power, low down torque, and was very fuel efficient, but the 40i motor is absolutely magic - as smooth as butter when pushed gently, but an absolute "animal" when pushed hard - especially in Sports Plus mode. I haven't pushed her that hard yet because I'm still in the run-in period, but I have revved it to 4500-5000 and love that sound !

My new ride has the full M Sports package with M Sport Exhaust, Red M Sport brakes along with 22" 742 M Bicolour jet black rims with plain vanilla Adaptive M Suspension. The interior is Black with Carbon Fibre trim which I think looks awesome.

Two important things I think are worth mentioning:
1 - I've been driving it for almost a week now, and I am fully convinced the 22" 742 wheels provide a softer ride than the 20" 740M wheels I had on my 2019 30D. The 22" tyres are Contis non run-flats, while my old 20" were Bridgestone Alenza run-flats. Seriously the difference is day & night. They are definitely a little noisier on the highway (but in a very subtle way), while at normal street speeds the noise is negligible - the same as the 20".
I was initially VERY worried about going to 22" wheels after hearing from some drive journos whining about how hard the 22" makes the ride - but no such experience for me...
Anyone considering the 22", my advice GO FOR IT ! ..you wont be disappointed.

2- I changed from Diesel to Petrol (Gas) because almost ALL of my driving these days is now short distances, and with COVID I'll only be going into the office once or twice a week max. I only tow half a dozen times a year, and the 40i and the 450Nm is plenty for my small boat. I plan on keeping this through to the end of the decade (~10-12 years), and selling or trading in a petrol motor after 2030 will be a lot easier than trying to trade in a Diesel powered car...

Here's a few pics...
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Last edited by James_G0540i; 10-26-2021 at 05:16 AM..
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      10-26-2021, 05:57 AM   #2
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Congrats and very nice looking. The carbon fibre trim is stunning

I can just confirm what you are saying regarding the 22”, had the same 22” on a 30d but different tires and no problem with the ride comfort, albeit I had air suspension front and rear. I now have 21” on a 45e and I can’t say they are more quiet either. Both cars with double glass. I think the noice level is more dependent on the tires as you point out and the surface your driving on as oppsed to 20”,21”, 22”.
Only downside of the 22” is that they take longer to clean as there are a lot of spokes, the 21” Y-spokes are easier.

Enjoy your new car!
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      10-26-2021, 07:05 AM   #3
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Quote:
Originally Posted by James_G0540i View Post
I've been a big advocate for my 30D Diesel, but I've just replace my 2019 30D with a 2021 40i, and WOW what a car and what a motor.

2- I changed from Diesel to Petrol (Gas) because almost ALL of my driving these days is now short distances, and with COVID I'll only be going into the office once or twice a week max. I only tow half a dozen times a year, and the 40i and the 450Nm is plenty for my small boat.
Did you consider the 45e? Sounds like an ideal car for your current needs. I love mine.
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      10-26-2021, 09:13 AM   #4
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Wow she's a beauty!! I absolutely agree with you on the 22s! How is the performance exhaust sound?? Love how you're able to chose the carbon fiber for the 40i
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      10-26-2021, 11:36 AM   #5
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First, congrats on the purchase!

Quote:
Originally Posted by James_G0540i View Post
I've been driving it for almost a week now, and I am fully convinced the 22" 742 wheels provide a softer ride than the 20" 740M wheels I had on my 2019 30D. The 22" tyres are Contis non run-flats, while my old 20" were Bridgestone Alenza run-flats. Seriously the difference is day & night. They are definitely a little noisier on the highway (but in a very subtle way), while at normal street speeds the noise is negligible - the same as the 20".
I was initially VERY worried about going to 22" wheels after hearing from some drive journos whining about how hard the 22" makes the ride - but no such experience for me...
Anyone considering the 22", my advice GO FOR IT ! ..you wont be disappointed.
How much of that do you think is attributable to the adaptive suspension (which I'm assuming you didn't have on the previous car?)

Not that I don't believe you, but it's hard to imagine that a 22" wheel is as comfortable as a 20" wheel on the same vehicle.
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      10-26-2021, 11:46 AM   #6
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I have the same Continentals on my ride...and the noise gets irritating at times. However, i think much of the noise (or lack thereof) really depends on the surface composition you're driving on.

I noticed a substantially quieter ride when i'm driving at highway speeds over asphalt versus when the road material is more concrete in nature.

In the latter scenario...the noise coming through the cabin is reminiscent of the sound a rubber kick ball makes when kicked (that "boooinng" sound) but just never ending...a hollow, rubber ball sound...which i suppose...is exactly what those tires are

The other drawback for me is that these are summer tires...and given that i live in a very mild climate (Los Angeles) buying a set of winter tires makes zero sense for me. However, with these summers...i unfortunately really can't take this car up to the snow...so we'll still likely drive up (once a year) in my 2013 328
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      10-26-2021, 01:48 PM   #7
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Nice ride. I've been tempted to do the same but I still a high mileage so will stick with the 3.0d for now. I've got the 22" 742 rims on my diesel and love them. I had years of RFTs on previous BMW and was a little worried about not having a spare. After 2.5 years I've just bought a cheap Chinese emergency spare wheel kit for £185. Clearly it is not a patch on the oem emergency spare but it will be sufficient to get me to a tyre depot and better than using the emergency repair kit
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      10-26-2021, 03:27 PM   #8
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Looks absolutely stunning - congratulations! Carbon interior with black seats is possibly the best combination.

Pleased to hear the 22s are proving the right choice and no problems with the ride. Non run flats make a huge difference, plus the advancements in adaptive settings.

Enjoy that peach of a motor. Nothing like the smooth power of a BMW inline 6-cylinder petrol engine.
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      10-26-2021, 05:10 PM   #9
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Quote:
Originally Posted by YuicyYumboYack View Post

How much of that do you think is attributable to the adaptive suspension (which I'm assuming you didn't have on the previous car?)

Not that I don't believe you, but it's hard to imagine that a 22" wheel is as comfortable as a 20" wheel on the same vehicle.
That's an interesting question.

I had the exact same Adaptive M Suspension on my previous 30D, and I was always surprised how rough the ride was on the 20" RFTs, even in Comfort mode.

With the new ride, I find the overall feel "more compliant" and it just seems less jarring and able to absorb road anomalies better. It is hard to explain...

Maybe the previous car had different or harder springs in the Adaptive M suspension setup, or maybe the 22" wider tyres are able to better absorb road undulations and potholes better....
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      10-26-2021, 06:07 PM   #10
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Quote:
Originally Posted by James_G0540i View Post
That's an interesting question.

I had the exact same Adaptive M Suspension on my previous 30D, and I was always surprised how rough the ride was on the 20" RFTs, even in Comfort mode.

With the new ride, I find the overall feel "more compliant" and it just seems less jarring and able to absorb road anomalies better. It is hard to explain...

Maybe the previous car had different or harder springs in the Adaptive M suspension setup, or maybe the 22" wider tyres are able to better absorb road undulations and potholes better....
Interesting, and good to know! When I ordered the x5 I wanted to go with something bigger, but ultimately the baby's comfort took priority so we we didn't upgrade.

I'm going to show your post to my wife as proof we need to get 22" wheels
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      10-26-2021, 06:57 PM   #11
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Personally, I don't see the appeal of big wheels...cost more, tires cost more, tend to wear out sooner, more susceptible to damage to both the tire and the wheels, and I can't see them while driving it. The taller tire sidewalls do ride better, and the thing seems to handle fine. In the bay area, you may not encounter snow, but if you wanted to go skiing, you'd need to purchase either some winter tires, or all-weather ones, adding yet more costs, or, drive something else.
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      10-26-2021, 07:40 PM   #12
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Quote:
Originally Posted by jad03060 View Post
Personally, I don't see the appeal of big wheels...cost more, tires cost more, tend to wear out sooner, more susceptible to damage to both the tire and the wheels, and I can't see them while driving it. The taller tire sidewalls do ride better, and the thing seems to handle fine. In the bay area, you may not encounter snow, but if you wanted to go skiing, you'd need to purchase either some winter tires, or all-weather ones, adding yet more costs, or, drive something else.
I see your points. I'm in the bay area and thinking about getting the scorpions when these 22 continentals wear out. No plans for winter wheels. I find the ride is quite good presently.
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      10-26-2021, 09:42 PM   #13
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Hi James,

fantastic looking vehicle! congratulations i am also in Melbourne like you!
the carbon fibre looks so nice, im just scared of scratches, looks like it could be easily scratched ?

ive also gone for the 22" wheels and M sport exhaust, cannot wait! not getting built until earliest December 19th or January.

come and join the Australian G05 group on facebook and share you car there!

www.facebook.com/groups/4356514257760597/
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      11-21-2021, 08:22 PM   #14
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Great move imo - same reasons I chose the 40i (coming from an E70 35D).

And also echo your sentiments re the wheels - I did quick back to back test drives of the 22 vs 21 and didn't notice any detriment with the 22s, so went them because they look great lol

You now have the option of swapping out your downpipe. I went the CG DS-1 - adds a nice rumble to the exhaust note!
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      11-21-2021, 09:30 PM   #15
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Beautiful color combo! Congratulations. I went for the 40i as well after owning several N62 4.4L BMW's and this reminds me a lot of my old E39 528i, smoothest car I've driven.
One question though, since when is the HVAC control display orange? Does this also have to do with the "shortages" or the fact that you're in a different region than me for example?
Mine is white with a few colors.
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      11-21-2021, 09:59 PM   #16
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Quote:
Originally Posted by maher View Post
Beautiful color combo! Congratulations. I went for the 40i as well after owning several N62 4.4L BMW's and this reminds me a lot of my old E39 528i, smoothest car I've driven.
One question though, since when is the HVAC control display orange? Does this also have to do with the "shortages" or the fact that you're in a different region than me for example?
Mine is white with a few colors.
Nope, the car hasn't got 4-zone climate control, only 2-zone - which explains the mono-chrome orange display. (it does change to white during in the daylight).

You must have the 4-zone climate control?
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      11-21-2021, 10:03 PM   #17
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Quote:
Originally Posted by atlas View Post
Great move imo - same reasons I chose the 40i (coming from an E70 35D).

And also echo your sentiments re the wheels - I did quick back to back test drives of the 22 vs 21 and didn't notice any detriment with the 22s, so went them because they look great lol

You now have the option of swapping out your downpipe. I went the CG DS-1 - adds a nice rumble to the exhaust note!
My wife already gets nervous with the existing rumble of the M Sport exhaust, I think I'll be pressing my luck going louder...

I've been driving it now for a few weeks, and the more I drive it the more I love it. Is it just me, but it feels a lot more than a 250kW motor? ....
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      11-21-2021, 10:56 PM   #18
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Quote:
Originally Posted by James_G0540i View Post
Quote:
Originally Posted by maher View Post
Beautiful color combo! Congratulations. I went for the 40i as well after owning several N62 4.4L BMW's and this reminds me a lot of my old E39 528i, smoothest car I've driven.
One question though, since when is the HVAC control display orange? Does this also have to do with the "shortages" or the fact that you're in a different region than me for example?
Mine is white with a few colors.
Nope, the car hasn't got 4-zone climate control, only 2-zone - which explains the mono-chrome orange display. (it does change to white during in the daylight).

You must have the 4-zone climate control?
I guess that's exactly it!
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      11-22-2021, 12:13 AM   #19
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Quote:
Originally Posted by James_G0540i View Post
My wife already gets nervous with the existing rumble of the M Sport exhaust, I think I'll be pressing my luck going louder...

I've been driving it now for a few weeks, and the more I drive it the more I love it. Is it just me, but it feels a lot more than a 250kW motor? ....
Try the exhaust flap mod and see how that goes lol

My theory on the power is that they detuned the peak HP but added more usable torque. But that is purely speculation.
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      11-22-2021, 06:13 PM   #20
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Quote:
Originally Posted by James_G0540i View Post
I didn't mind the 30D, it had heaps of power, low down torque, and was very fuel efficient, but the 40i motor is absolutely magic - as smooth as butter when pushed gently, but an absolute "animal" when pushed hard - especially in Sports Plus mode. I haven't pushed her that hard yet because I'm still in the run-in period, but I have revved it to 4500-5000 and love that sound !


Two important things I think are worth mentioning:
1 - I've been driving it for almost a week now, and I am fully convinced the 22" 742 wheels provide a softer ride than the 20" 740M wheels I had on my 2019 30D. The 22" tyres are Contis non run-flats, while my old 20" were Bridgestone Alenza run-flats. Seriously the difference is day & night. They are definitely a little noisier on the highway (but in a very subtle way), while at normal street speeds the noise is negligible - the same as the 20".
I was initially VERY worried about going to 22" wheels after hearing from some drive journos whining about how hard the 22" makes the ride - but no such experience for me...
Anyone considering the 22", my advice GO FOR IT ! ..you wont be disappointed.
Great choice . I upgraded my wife's '15 x3 30d (same motor) to a '21 40i (now mine) and wouldn't have it any other way. I have the same B58 motor in my M140 and its just such a great motor all round, although it is disappointing they've detuned it for the x5 in comparison.

I didn't compare the tires back to back like you've been able to do but I did look at the cost difference between the 20" RF and the 22" non=RF and it worked out about $200 difference for a full set. And given the 22's came in the equipment pack I wanted (for the exhaust) it was a no-brainer.
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      11-22-2021, 06:20 PM   #21
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Quote:
Originally Posted by atlas View Post
Try the exhaust flap mod and see how that goes lol

My theory on the power is that they detuned the peak HP but added more usable torque. But that is purely speculation.
Driving 2 B58's back to back (X5 40i v M140i) it is a really noticeable difference in tuning (excluding weight and chassis characteristics, etc). Obviously there's a big weight difference and RWDvAWD.

I would argue, from my amateur opinion, that the x5 could do with more torque, particularly down low.
What I find interesting, and I'm sure someone more technical than me could comment, is that the turbo on the 140 is very subtle and you have to go searching a bit for it on normal driving, but with the x5 it seems to be always be noticeable - at least you can almost always hear it..
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      11-22-2021, 06:42 PM   #22
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Quote:
Originally Posted by quattrodubber View Post
Great choice . I upgraded my wife's '15 x3 30d (same motor) to a '21 40i (now mine) and wouldn't have it any other way. I have the same B58 motor in my M140 and its just such a great motor all round, although it is disappointing they've detuned it for the x5 in comparison.
.
Agree. The X3M40i has 265kW and 500Nm, and that tune would have been the perfect fit for the X5, especially that extra 50Nm of torque which would have been great for this heavy car.
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