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Has someone noticed 2024 GLE 350/450 has 94B "integrated starter generator generation 2", while previous year models have 93B "integrated starter generator"
I didn't see any discussion about them here, and i also didn't find any information about the difference using google search.
Is there any improvement in the 2024 model ?
Last edited by manbeing; Jun 24, 2023 at 10:15 AM.
My 2023 450 has 93b, which was built in Mar 2023, the dealer's 2024 450 has 94b which was built in April.
Reliability wise, 93b (gen 1) has been on the market for almost 4 years and is supposed to be stable ?
Intriguing. The 3.0 liter six cylinder engine, both in 450/43 and 500/53 guise, was the only US user of the "gen 1" 48 volt system (though I believe the last gen 4 cylinder also got it abroad) while the V8 and the newer inline 4 started with the gen 2 system. So it's interesting that facelift GLE450s and 53s now have the gen 2 system as well.
It’s already been answered….now part of the transmission instead of part of the engine….
Second-generation ISG and further-developed 9G-TRONIC The second generation of the integrated starter-generator is being launched in the E-Class models. The electric machine is no longer part of the engine but instead the transmission. This makes it easier to combine the innovative technology with different engines. Accordingly, the 9G-TRONIC automatic transmission has been further developed and will initially be used in the four-cylinder engines. The electric motor, power electronics and transmission cooler have moved to the transmission. As a result, previously necessary cables have been dispensed with, resulting in installation space and weight advantages. The efficiency of the transmission also increases. Example: the improved interaction with the electric auxiliary oil pump reduces the delivery volume of the mechanical pump by 30%. Further contributions to increased efficiency are made by the new generation of fully integrated transmission control with a multicore processor and a new assembly and connection technology. Despite increased computing power, the number of electrical interfaces has been drastically reduced and the weight of the transmission control unit reduced by 30%.
It’s already been answered….now part of the transmission instead of part of the engine….
Second-generation ISG and further-developed 9G-TRONIC The second generation of the integrated starter-generator is being launched in the E-Class models. The electric machine is no longer part of the engine but instead the transmission. This makes it easier to combine the innovative technology with different engines. Accordingly, the 9G-TRONIC automatic transmission has been further developed and will initially be used in the four-cylinder engines. The electric motor, power electronics and transmission cooler have moved to the transmission. As a result, previously necessary cables have been dispensed with, resulting in installation space and weight advantages. The efficiency of the transmission also increases. Example: the improved interaction with the electric auxiliary oil pump reduces the delivery volume of the mechanical pump by 30%. Further contributions to increased efficiency are made by the new generation of fully integrated transmission control with a multicore processor and a new assembly and connection technology. Despite increased computing power, the number of electrical interfaces has been drastically reduced and the weight of the transmission control unit reduced by 30%.
Does increase efficiency will also produce greater reliability? I have not seen anyone posting problems directly linked to the current generation of the starter-generator. I guess time will tell.
Has someone noticed 2024 GLE 350/450 has 94B "integrated starter generator generation 2", while previous year models have 93B "integrated starter generator"
I didn't see any discussion about them here, and i also didn't find any information about the difference using google search.
Is there any improvement in the 2024 model ?
It’s already been answered….now part of the transmission instead of part of the engine….
Second-generation ISG and further-developed 9G-TRONIC The second generation of the integrated starter-generator is being launched in the E-Class models. The electric machine is no longer part of the engine but instead the transmission. This makes it easier to combine the innovative technology with different engines. Accordingly, the 9G-TRONIC automatic transmission has been further developed and will initially be used in the four-cylinder engines. The electric motor, power electronics and transmission cooler have moved to the transmission. As a result, previously necessary cables have been dispensed with, resulting in installation space and weight advantages. The efficiency of the transmission also increases. Example: the improved interaction with the electric auxiliary oil pump reduces the delivery volume of the mechanical pump by 30%. Further contributions to increased efficiency are made by the new generation of fully integrated transmission control with a multicore processor and a new assembly and connection technology. Despite increased computing power, the number of electrical interfaces has been drastically reduced and the weight of the transmission control unit reduced by 30%.
It’s already been answered….now part of the transmission instead of part of the engine….
Second-generation ISG and further-developed 9G-TRONIC The second generation of the integrated starter-generator is being launched in the E-Class models. The electric machine is no longer part of the engine but instead the transmission. This makes it easier to combine the innovative technology with different engines. Accordingly, the 9G-TRONIC automatic transmission has been further developed and will initially be used in the four-cylinder engines. The electric motor, power electronics and transmission cooler have moved to the transmission. As a result, previously necessary cables have been dispensed with, resulting in installation space and weight advantages. The efficiency of the transmission also increases. Example: the improved interaction with the electric auxiliary oil pump reduces the delivery volume of the mechanical pump by 30%. Further contributions to increased efficiency are made by the new generation of fully integrated transmission control with a multicore processor and a new assembly and connection technology. Despite increased computing power, the number of electrical interfaces has been drastically reduced and the weight of the transmission control unit reduced by 30%.
I previously owned a 2020 GLE 580 and experienced same issues. Traded for 21 GLC 43 and had similar issues, though to a lesser extent. Recently traded for 24 GLE53 and it is a dream come true! This 2024GLE53 shifts super smooth and is a pure pleasure to drive. Stop/start no issue at all.
It appears that after several years experience wih ISG, MB engineers finally got it right per gen 2 on 2024 E’s. Hallelujah!!
I previously owned a 2020 GLE 580 and experienced same issues. Traded for 21 GLC 43 and had similar issues, though to a lesser extent. Recently traded for 24 GLE53 and it is a dream come true! This 2024GLE53 shifts super smooth and is a pure pleasure to drive. Stop/start no issue at all.
It appears that after several years experience wih ISG, MB engineers finally got it right per gen 2 on 2024 E’s. Hallelujah!!
My ISG is definitely "right." Imperceptible start/stop, tranny shifts super smooth or super quick, depending on the settings. As it should be. (So was my 2020 450's.)
Plus I don't have the dumbed down MBUX, no 48v problems, and ARC.
I was originally planning on exchanging at 4 yrs, but this may be a 7 year+ car. Lasting into the EV era.🙂
I’m with you, if it ain’t broke, keep it for 7 years…Besides by that time I’ll be well into my 80s and my kids will probably hide the keys from me! I’m just happy that a car I favor does indeed give me total joy to drive everyday and not frustration, like some of my last 4 or 5 cars.
From what I see, the transmission mounted ISG should have the benefit of being able to disconnect from the ICE engine. That alone has obvious benefits. The Gen1 ISG had to spin the ICE crankshaft to provide any input to the transmission. That said the tradeoff is likely a more complicated replacement procedure should it ever be needed.
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