[BimmerGuyFL78]

Does anyone else notice their transmission sometimes not have a super smooth change at low speeds or when you're creeping along in stuck and go traffic? My vehicle is a 2018 BMW 540i rear wheel drive.

[AP]

No
Mine is fine 3300 miles on it now

[DavidI]

In my F10 I've noticed perhaps a dozen times in over 2 years what feels like you occasionally catch the gear change software out. I couldn't even describe the exact circumstances, it's always at low speed, most likely the change from 1st to second but could be second to third, and I think it's when I'm building speed then ease off the throttle then back on and perhaps the gearbox goes to change up then changes back down again.

It's very similar to a poor or rough gear change in a manual car. It's never happened often enough for me to really think about it, but I do think - in my case - it's where my actions fall outside the gearbox programming! Never noticed it at anything other than crawling speeds.

[BimmerGuyFL78]

Originally Posted by DavidI

In my F10 I've noticed perhaps a dozen times in over 2 years what feels like you occasionally catch the gear change software out. I couldn't even describe the exact circumstances, it's always at low speed, most likely the change from 1st to second but could be second to third, and I think it's when I'm building speed then ease off the throttle then back on and perhaps the gearbox goes to change up then changes back down again.

It's very similar to a poor or rough gear change in a manual car. It's never happened often enough for me to really think about it, but I do think - in my case - it's where my actions fall outside the gearbox programming! Never noticed it at anything other than crawling speeds.

Originally Posted by DavidI

In my F10 I've noticed perhaps a dozen times in over 2 years what feels like you occasionally catch the gear change software out. I couldn't even describe the exact circumstances, it's always at low speed, most likely the change from 1st to second but could be second to third, and I think it's when I'm building speed then ease off the throttle then back on and perhaps the gearbox goes to change up then changes back down again.

It's very similar to a poor or rough gear change in a manual car. It's never happened often enough for me to really think about it, but I do think - in my case - it's where my actions fall outside the gearbox programming! Never noticed it at anything other than crawling speeds.

That's exactly what I am experiencing on my G30.

[ztx84]

Originally Posted by DavidI

In my F10 I've noticed perhaps a dozen times in over 2 years what feels like you occasionally catch the gear change software out. I couldn't even describe the exact circumstances, it's always at low speed, most likely the change from 1st to second but could be second to third, and I think it's when I'm building speed then ease off the throttle then back on and perhaps the gearbox goes to change up then changes back down again.

It's very similar to a poor or rough gear change in a manual car. It's never happened often enough for me to really think about it, but I do think - in my case - it's where my actions fall outside the gearbox programming! Never noticed it at anything other than crawling speeds.

Yep - I've found exactly the same sort of thing. I think it is where we might catch the gearbox programming out. I have found it happens when I'm slowly approaching a junction or roundabout and its almost as if the car can't decide if it wants to be in first or second - particularly when I need to accelerate quickly. At all other times the gearbox is flawless, but its that second to first issue I think.

[nikhilp91]

Has anyone been able to resolve this? Tried explaining the problem to the agent, but as usual, the car doesnt do it when they take it for a test

[HighlandPete]

When it starts happening, has anyone simply flicked the shifter to M/S and then back to D, to break any driver/situation adaptation? If not try it, it may be due to the current driving situation and resulting inputs. Get it back to a 'fresh' start.

[hlothery]

Originally Posted by HighlandPete

When it starts happening, has anyone simply flicked the shifter to M/S and then back to D, to break any driver/situation adaptation? If not try it, it may be due to the current driving situation and resulting inputs. Get it back to a 'fresh' start.

I have never experienced this in over 39K miles now. However, I frequently flick the lever to the left to M/S mode in traffic, where I think the transmission staying in gear makes the car much more easily driven. I use it for performance frequently also. I think this allows the ZF8 to mimic Drivelogic 2, which I always used on the DCT in my former M4. Maybe this explanation is the reason I have not had the described problems?

[SteveinArizona]

No transmission is perfect but BMW has tuned the ZF about as good as possible and better (IMHO) than anyone else.

[paquet]

Want to say software update should smoothen this out

[jimk]

I have the same exact issue. When driving slow as in a parking lot, 1st to 2nd shifting is jumpy and that happens quite often. I wonder if clearing the transmission adaptations will fix this, however I think BMW warns against clearing the adaptations unless it is part of certain repair procedures.

[Skrim]

Originally Posted by Alpine535Msport

Does anyone else notice their transmission sometimes not have a super smooth change at low speeds or when you're creeping along in stuck and go traffic? My vehicle is a 2018 BMW 540i rear wheel drive.

Just picked up a used 540i and noticed this issue, its mainly in traffic for me, its like the engine isnt dropping speed automatically between shifts. I'm going to try resetting the adaptations in the transmission and see if this gets rid of the issue.

[Skrim]

Originally Posted by jimk

I have the same exact issue. When driving slow as in a parking lot, 1st to 2nd shifting is jumpy and that happens quite often. I wonder if clearing the transmission adaptations will fix this, however I think BMW warns against clearing the adaptations unless it is part of certain repair procedures.

Nothing wrong with resetting adaptations its just required with some repairs.

[AP]

Might it be anything to do with the gearbox oil not being warmed up ?

[aidant799]

Originally Posted by Alpine535Msport

Does anyone else notice their transmission sometimes not have a super smooth change at low speeds or when you're creeping along in stuck and go traffic? My vehicle is a 2018 BMW 540i rear wheel drive.

Did you get to he bottom of why this is? My 520D G30 is the exact same, though I am seeing a lot more people with bigger engines having the same issues. I also suffer from heavy downshift from 3-2/2-1 sometimes. It definitely seems like its a software issue and the gears are confused.

The threads upon threads and forums upon forums with hundreds of posts.. someone must have come up with an a resolution by now.

[Mosaud1998]

I have this same issue when I first start the car in the morning. I let the car idle until the RPM doesn't settle down (usually takes a few seconds). Then I take off but I don't gun the car right off the bat.

There's a stop sign not too far from my house so I lightly accelerate the car. When I slow down, the car kind of gets all lumpy and stuff. At first I thought it was the turbos.

My factory warranty expires in March of 2023. I'm taking the car in Feb for an inspection. I'll have them take a look at that stuff.

[Haradrim]

Have guys found solution for that? I noticed out this issue on stop and go at traffic and slow speeds?

[padresu]

2018 540 with exactly above symptoms, resetting adaptation, changing transmission fluid did nothing.
replacing vanos solenoids - resolved!

[aidant799]

Originally Posted by padresu

2018 540 with exactly above symptoms, resetting adaptation, changing transmission fluid did nothing.
replacing vanos solenoids - resolved!

Never even heard of that until you mentioned it. My 520D doesn't have the symptoms being described by research Iv done on Vanos Solenoid symptoms. But gives me something else to look into

[Warp Ten]

I always drive with my car in Sport mode and I have to say that occasionally shifts feel a bit abrupt or clunky at low speeds, but I have always ascribed that to the sport mode. Not enough of a problem for me to worry about. --Bob

[NGT2]

Originally Posted by Warp Ten

I always drive with my car in Sport mode and I have to say that occasionally shifts feel a bit abrupt or clunky at low speeds, but I have always ascribed that to the sport mode. Not enough of a problem for me to worry about. --Bob

I set up my Sport Individual mode to use comfort settings for transmission for this reason.

[Haradrim]

Originally Posted by padresu

2018 540 with exactly above symptoms, resetting adaptation, changing transmission fluid did nothing.
replacing vanos solenoids - resolved!

Hello

Could you please inform me photos of or code of the parts. Cant understand clearly because of turkish english diffrence..