Lurging: Finally Solved
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Joined: May 2021
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Lurging: Finally Solved
I'm one of the chronic lurging sufferers here, and just as I despaired... it was finally solved, and with explanation! Shout out to Trophy Performance folks here in Vegas.
It's the transmission learning algorithm that's screwing us. When you first get the car or after every tranny learning reset, it "learns" your driving style over the first few days. Since most of us are pretty lead-footed (otherwise why buy a Porsche, right?), it learns to drop one extra gear when braking, therefore resulting in lurging when it's time to drop the clutch around 10 mph.
Solution: have the dealer reset the tranny and drive calmly for the first few days. Transmission then works normally. It's stil not as smooth as BMW's ZF implementation, but it's nothing your passengers will notice anymore.
When the mechanic told me all this, I was skeptical, but I followed the advice - and voila! weeks later, still no lurging.
Hope this works for others.
It's the transmission learning algorithm that's screwing us. When you first get the car or after every tranny learning reset, it "learns" your driving style over the first few days. Since most of us are pretty lead-footed (otherwise why buy a Porsche, right?), it learns to drop one extra gear when braking, therefore resulting in lurging when it's time to drop the clutch around 10 mph.
Solution: have the dealer reset the tranny and drive calmly for the first few days. Transmission then works normally. It's stil not as smooth as BMW's ZF implementation, but it's nothing your passengers will notice anymore.
When the mechanic told me all this, I was skeptical, but I followed the advice - and voila! weeks later, still no lurging.
Hope this works for others.
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Joined: Nov 2019
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From: linker Fahrbahn
I'm one of the chronic lurging sufferers here, and just as I despaired... it was finally solved, and with explanation! Shout out to Trophy Performance folks here in Vegas.
It's the transmission learning algorithm that's screwing us. When you first get the car or after every tranny learning reset, it "learns" your driving style over the first few days. Since most of us are pretty lead-footed (otherwise why buy a Porsche, right?), it learns to drop one extra gear when braking, therefore resulting in lurging when it's time to drop the clutch around 10 mph.
Solution: have the dealer reset the tranny and drive calmly for the first few days. Transmission then works normally. It's stil not as smooth as BMW's ZF implementation, but it's nothing your passengers will notice anymore.
When the mechanic told me all this, I was skeptical, but I followed the advice - and voila! weeks later, still no lurging.
Hope this works for others.
It's the transmission learning algorithm that's screwing us. When you first get the car or after every tranny learning reset, it "learns" your driving style over the first few days. Since most of us are pretty lead-footed (otherwise why buy a Porsche, right?), it learns to drop one extra gear when braking, therefore resulting in lurging when it's time to drop the clutch around 10 mph.
Solution: have the dealer reset the tranny and drive calmly for the first few days. Transmission then works normally. It's stil not as smooth as BMW's ZF implementation, but it's nothing your passengers will notice anymore.
When the mechanic told me all this, I was skeptical, but I followed the advice - and voila! weeks later, still no lurging.
Hope this works for others.
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Joined: May 2021
Posts: 71
Likes: 47
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Joined: Mar 2020
Posts: 142
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From: San Francisco, Bay Area
I'm one of the chronic lurging sufferers here, and just as I despaired... it was finally solved, and with explanation! Shout out to Trophy Performance folks here in Vegas.
It's the transmission learning algorithm that's screwing us. When you first get the car or after every tranny learning reset, it "learns" your driving style over the first few days. Since most of us are pretty lead-footed (otherwise why buy a Porsche, right?), it learns to drop one extra gear when braking, therefore resulting in lurging when it's time to drop the clutch around 10 mph.
Solution: have the dealer reset the tranny and drive calmly for the first few days. Transmission then works normally. It's stil not as smooth as BMW's ZF implementation, but it's nothing your passengers will notice anymore.
When the mechanic told me all this, I was skeptical, but I followed the advice - and voila! weeks later, still no lurging.
Hope this works for others.
It's the transmission learning algorithm that's screwing us. When you first get the car or after every tranny learning reset, it "learns" your driving style over the first few days. Since most of us are pretty lead-footed (otherwise why buy a Porsche, right?), it learns to drop one extra gear when braking, therefore resulting in lurging when it's time to drop the clutch around 10 mph.
Solution: have the dealer reset the tranny and drive calmly for the first few days. Transmission then works normally. It's stil not as smooth as BMW's ZF implementation, but it's nothing your passengers will notice anymore.
When the mechanic told me all this, I was skeptical, but I followed the advice - and voila! weeks later, still no lurging.
Hope this works for others.
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Joined: May 2021
Posts: 71
Likes: 47
Interesting.... What do you mean by drive calmly? I bought mine new and was driving pretty relaxed with it (at least I thought I was). I will say my car was sitting on the lot for a couple of months as a 22 model year and came with 50 miles on the odometer. It could be possible that the sales folks were ripping it around every now and then and the car may have learned some weird braking behavior. I'll try this next time I service it.
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From: linker Fahrbahn
Looks like it. Press the gas pedal for 23.47924 seconds while holding your mouth like this, and then turn the key. Most important is to do all steps at exactly the same moment in time, otherwise you need to start over.
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From: linker Fahrbahn
Last edited by chassis; Mar 13, 2023 at 06:21 AM.
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