W205C43PFL

I never said it doesn't save fuel, I said from what I read and to make sure that everything is extra clear, on vehicles with the traditional auto start/stop (in this case the GLE 350), it might use more fuel when the vehicle isn't powered off long enough, let's say if you just stop for a stop sign and then move on or stuck in stop-and-go traffic the type that you literally do stop and then immediately go, I already stated this might or might not be accurate but many sites are talking about this same thing so I guess take it for what it is and reason why I wrote what I wrote, I am just sharing what I read. Sorry for the confusion. Thanks for your post I mean if we didn't talk about this topic, you wouldn't had posted those links that could help other forum members learn about their cars if they come across this thread. Just need to make sure if their vehicle is not a 450, the 48V ISG MB uses does not apply.

W205C43PFL

Quoting this post to say thank you for sharing this, I would never know that BMW still uses a belt-driven motor/generator despite having a 48V system. I learned something today.

GregW / Oregon

They are transitioning to integrated. I believe the X5 used this system: https://www.seg-automotive.com/48v/m...rical%20power.
However, based on their 2/16/2023 press release, it appears the X5 and X6 now use an ISG like Mercedes. "All the drive units now feature 48V mild hybrid technology. This across-the-board application of electrification comes in the form of an electric motor integrated into the transmission. This motor generates an output boost of up to 9 kW/12 hp and 200 Nm (147 lb-ft) of torque, helping the combustion engine to deliver a smooth, dynamic drive along with high efficiency." Note that their system only provides 12 hp, compared to 22 hp. on the GLE's.

W205C43PFL

Thanks, is there a chance it is the same supplier or BMW has their own supplier?

manbeing

I watched an official BMW video regarding the engine idle stop/start system on X5s. it says this system is engineered to be built for the lifetime. Based on the quality of BMW, I am not sure it is real or not.

noca$h

Bought a 23 GLE450 last weekend and best I could manage was barely a grand off msrp. The 350s were on the lot 3:1 and salesman even admitted theyd be able to work on those a bit more. I just didnt like the way the 350 drove compared to the 450 at all.

W205C43PFL

Although not defending BMW by any means, they did have an impressive achievement of ranking 3rd place in Consumer Report reliability chart competing with known reliable Japanese brands (take it for what it is worth though) as there are multiple factors that contribute to a vehicle reliability, while MB has it down to I forgot I think 20th place. Like I said though, just take it for what it is worth.

W205C43PFL

Congrats on your vehicle, if it is the ride then it probably is just the tires that are causing issues, getting rid of run-flats or downsizing will help.

manbeing

What are the least reliable car models from Consumer report

Consumer Reports least reliable car models ranking includes cars with at least two model years of data and factors in issues like squeaky brakes and trouble with four-wheel-drive systems.

1. 2023 Jeep Wrangler

2. 2022 Mercedes-Benz GLE

3. 2022 Jeep Gladiator

4. 2022 Chevrolet Silverado 1500/GMC Sierra 1500

5. 2022 Chevrolet Bolt

6. 2022 Ford Explorer

7. 2022 Nissan Sentra

8. 2022 Lincoln Aviator

9. 2022 Hyundai Kona Electric

10. 2022 Ford F-150 Hybrid

W205C43PFL

Hence why I said take it for what it is worth.

W205C43PFL

Anyways OP I guess you want to go back to discussing the GLE, so let's do that. Is the 350 too much of a compromise, you did say the powertrain is impressive and good enough for your needs right?

W205C43PFL

Nevermind you said the GLE 450 is impressive I guess the 350 is a deal breaker for you.

W205C43PFL

Well I mean if you still want to talk about this topic, there is a whole thread on this one it seems: https://mbworld.org/forums/gle-class...15-2022-a.html

mikapen

I agree. It's a long winded and divisive topic. Let's leave it there.

mikapen

I had a 350 loaner while my 450 was in the shop for a week.
​​​​​​I was quite impressed, especially since we have a GLC300 with essentially the same power.

We live at 5,000 ft, and spent the week viewing Aspens, 12,000 ft passes, about a thousand miles during the week.
The 2 liter four moved the car with ease, and I got used to the turbo lag more easily than when I drive the GLC.

Passing traffic was surprisingly good, but not much left above 75, compared to about 90 with the 450.

There is very little stop and go traffic on our vicinity, and I was pretty unaware of Stop Start.

Our 450 got about 1mpg better than the 350 in similar driving, BTW.

Bryce1023

Waiting for the 2024 will most likely eliminate any discount you may get. It is basically the same vehicle. A $4000.00 discount seems very attractive considering the vehicle and the current prices being asked. BTW, is the 2023 a demo car, what kind of mileage does it have? You decision should also be dependent on are you buying or leasing, and how many years you intend to own the vehicle if buying. Whatever you decide, best of luck.

W205C43PFL

Yup your experience validated what I learned and heard, German inline-6s are inherently smooth so that is a real plus compared to four cylinders due to it being more balanced and other things. The 48V system as you already know will help with fuel economy that we don't otherwise expect in a six cylinder. The four cylinder if constantly pushed to achieve the same that six cylinder can do with minimal effort and workload from your experience you end up using more fuel. As the six cylinder can achieve the same task with less effort and stress than the four cylinder and at lower RPMs too, especially when merging on the highway, since the vehicle runs at lower RPM despite being a six cylinder, it uses less fuel completing the same task the four cylinder is trying to complete.

ddeliber

Just out of curiosity, what are the considerations for things like CAFE or emission standards etc? I was under the impression that a manufacturer has do be under some threshold for all models (some type of average) and the focus was on fuel economy only. If it just fuel economy, and the i6 is better than the i4 wouldn't it be in MB's best interest to ship more 450s over 350s?

Is there something else in there that makes it better for MB to push 4 cylinder vehicles over 6's?

mikapen

The MPG rating for the four is higher on the EPA test cycle.

450s are limited by component availability. The demand is certainly there.

GregW / Oregon

The price point of the 350 makes it a higher volume model, as well.

mb2be

X5 was actually ranked highest for midsize luxury suv. I have not had any issues since day 1 unlike this gle, issue right off the factory.

W205C43PFL

Well, not defending MB either but it is unfortunate that lemons are a thing, hopefully yours isn't actually a lemon but no vehicle is free of issues, even X5 I guess some specific ones will have issues and might be required to go through manufacturer buyback, hopefully your X5 remains problem free and as for your GLE, hopefully the issues on the GLE is resolved as well.