Engine Lugging

ntran90 · 12-21-2023, 05:01 PM

Sooo....anyone accidently tried lugging their engine? My dumbass today was driving conservatively merging on the highway and decided to switch to M2 settings while at 8th gear and forgot it was in manual mode. So I didn't down shift and was wondering why the fuck is the RPM not moving at all...did my ECU protect the car from my dumbassery and prevent the engine from trying to rev up? It maintain my current speed fine, just prevented any additional acceleration.

christianb5s4 · 12-21-2023, 06:33 PM

You're fine, the engine just can't produce enough power at that load to accelerate significantly.

kjx · 12-30-2023, 09:44 PM

At least this is better than the opposite. Accelerating hard in first gear without realizing it is in manual mode, and then suddenly bouncing against the rev limiter.

The time lag between you thinking why the engine is revving higher than you expect and the limiter hitting is so small that the realization sinking in and the rev limiter bouncing happens at exactly the same time.

I cannot deny I'd done this twice in my previous car. You cannot forget the shame you feel as you sheepishly shift up.

showmatic · 12-30-2023, 10:35 PM

Quote:

Originally Posted by kjx

At least this is better than the opposite. Accelerating hard in first gear without realizing it is in manual mode, and then suddenly bouncing against the rev limiter.

The time lag between you thinking why the engine is revving higher than you expect and the limiter hitting is so small that the realization sinking in and the rev limiter bouncing happens at exactly the same time.

I cannot deny I'd done this twice in my previous car. You cannot forget the shame you feel as you sheepishly shift up.

Only had my car about a month and I've already done it.....

ntran90 · 01-22-2024, 05:22 PM

Quote:

Originally Posted by kjx

At least this is better than the opposite. Accelerating hard in first gear without realizing it is in manual mode, and then suddenly bouncing against the rev limiter.

The time lag between you thinking why the engine is revving higher than you expect and the limiter hitting is so small that the realization sinking in and the rev limiter bouncing happens at exactly the same time.

I cannot deny I'd done this twice in my previous car. You cannot forget the shame you feel as you sheepishly shift up.

Didn't even thinking about this silvering lining

12-21-2023, 05:01 PM	#1
ntran90 Private 19 Rep 86 Posts Drives: 2023 BMW M3 Join Date: May 2022 Location: Maryland iTrader: (0) Garage List 2023 BMW M3 Competi ... [10.00]	Engine Lugging Sooo....anyone accidently tried lugging their engine? My dumbass today was driving conservatively merging on the highway and decided to switch to M2 settings while at 8th gear and forgot it was in manual mode. So I didn't down shift and was wondering why the fuck is the RPM not moving at all...did my ECU protect the car from my dumbassery and prevent the engine from trying to rev up? It maintain my current speed fine, just prevented any additional acceleration.
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12-21-2023, 06:33 PM	#2
christianb5s4 Lieutenant 824 Rep 589 Posts Drives: Built 2001 Audi S4 Join Date: Jan 2019 Location: Newport Beach, CA iTrader: (0)	You're fine, the engine just can't produce enough power at that load to accelerate significantly. __________________ 2024 M3 CompX Dravit Grey - MP HAS - Millway - MHC+ carbon - CS software - MAD single-mid - PPF 2019 G05 X5 x40i, built 2001 600whp B5 S4.
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12-30-2023, 09:44 PM	#3
kjx ///M ♥ Recycled Dinosaurs 3197 Rep 1,777 Posts Drives: BMW M4, BMW X5 45e Join Date: Jul 2021 Location: Seattle, WA iTrader: (0) Garage List 2022 BMW M4 Competi ... [0.00] 2021 BMW X5 45e [0.00]	At least this is better than the opposite. Accelerating hard in first gear without realizing it is in manual mode, and then suddenly bouncing against the rev limiter. The time lag between you thinking why the engine is revving higher than you expect and the limiter hitting is so small that the realization sinking in and the rev limiter bouncing happens at exactly the same time. I cannot deny I'd done this twice in my previous car. You cannot forget the shame you feel as you sheepishly shift up. __________________ 2022 BMW ///M4 Comp M xDrive (Enzian, Kyalami - insta \| youtube \| bp featured: Delivery + 963M + 2x Enzian!) \| 2021 BMW X5 45e (Carbon Black Metallic, Ivory White) BMW CCA LIFETIME MEMBER \| Past cars: 2016 BMW 435i Gran Coupe (Carbon Black Metallic, Oyster White - Euro-delivery)
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