M40i CO₂ emissions

[Swiftly]

I am wondering if any one can explain why the 2023 LCI M40i model CO₂ emissions is rated at 184 g/km where as my previous 2019 M40i CO₂ emissions was only 168 g/km. I am wondering if BMW have reduced some of the stuffing out of the exhaust system, since I have noticed that the exhaust sounds much deeper and is more throaty than the 2019 model, and which might account for the increase in emissions rating?

 

[B21]

Figures are broadly similar ..different certification basis in 2019 vs 2023 but close enough

For M40i

2019 EU6-LD temp 191-192
2023 WLTP 184-183

 

[Swiftly]

Figures are broadly similar ..different certification basis in 2019 vs 2023 but close enough

For M40i

2019 EU6-LD temp 191-192
2023 WLTP 184-183

So the deeper exhaust sound is just one of many minor differences that I have noticed between the 2019 and the 2023 LCI models

 

[Pondy]

I am wondering if any one can explain why the 2023 LCI M40i model CO₂ emissions is rated at 184 g/km where as my previous 2019 M40i CO₂ emissions was only 168 g/km.

I thought everybody knew.....white cars are much less eco-friendly than red ones. It's a sure-fire fact.

PS It may have something to do with change in fuels too. E5, etc! :?

PPS Just noticed the 'official figure' (which means absolutely nothing as it's a desktop calculation) is exactly 10% higher. Strange? :?

 

[Pondy]

was only 168 g/km.

ONLY 168g? 168 grams of a gas is a LOT of gas. And that's per km, not mile.
For every 1,000 miles at 184g/km you are pumping out nearly a 1/3 tonne of CO2. So much for kerbing global warming!

 

[Swiftly]

I am wondering if any one can explain why the 2023 LCI M40i model CO₂ emissions is rated at 184 g/km where as my previous 2019 M40i CO₂ emissions was only 168 g/km.

I thought everybody knew.....white cars are much less eco-friendly than red ones. It's a sure-fire fact.

So that's what it is :lol:

 

[q96169we]

I remembered the CO2 rating method changed between when I ordered my G31 and when I took delivery of it. It's exactly same car but CO2 is about 20g/km higher. The car was ordered in March 2020 and delivered in May 2020 so your 2019 vs. 2023 might be due to the same reason.