Lazy Zf?

[boost69]

Guys,

The last few months I have noticed by BF T seems a bit sluggish from a transmission point of view.

If the car is cruising along at say 60kph, and you slightly depress the accelerator, it just stays in the same gear and hence it's not as responsive, which is quite annoying.

The same type of scenario in my FG, you notice the transmission smoothly drop to the next gear and the car surges forward.

I have also noticed the BF has been more reluctant to kick down when you put the pedal to the medal, and has a tendency to just stretch out the gear it was in, rather than drop to a lower gear.

If by chance it does do a kick down, it won't actually rev out the lower gear first before engaging the higher gear, and will swiftly change the higher gear, before its actually revved the lower gear out.

Anyone experience anything like this?

Oil is full and the car has an air to oil tranny cooler...

The car has done over 220K KMS...so I'm thinking it could be a wear and tear issue?

[discostig]

You know it's an adaptive box right? It changes this exact type of behaviour based on how you are driving it over extended periods. Seems you haven't been flooring it enough.

The answer? Manual mode, all day, erryday. It's what I do, also avoids unexpected kickdowns in the wet.

[barnz]

You know it's an adaptive box right? It changes this exact type of behaviour based on how you are driving it over extended periods. Seems you haven't been flooring it enough.

The answer? Manual mode, all day, erryday. It's what I do, also avoids unexpected kickdowns in the wet.

If you push your foot down aggressively but not like a hammer you will feel a stop, this is 100% throttle without kick down. Push a little harder and you will feel a little resistance and sort of a click and the pedal will go to the carpet basically, that's the kick down. It will kick down every time if your the sort of driver that kicks the pedal through the fire wall. This is on a fg anyway.

Sorry for the rant if you were already aware

Besides real men always kick down in the wet

Edited 01/07/14 02:05 PM by barnz

[discostig]

Yeah there is always the detent to really make it understand you want to drop a gear (...or 3! Even if you are in manual mode). It will down shift without that though, and I've even had it drop from 4th to 3rd once when it could have gone to second, despite me mashing it to the floor!

Manual mode

All day

Erryday

Edited 01/07/14 03:04 PM by -SteveR-

[old_mate]

If you push your foot down aggressively but not like a hammer you will feel a stop, this is 100% throttle without kick down. Push a little harder and you will feel a little resistance and sort of a click and the pedal will go to the carpet basically, that's the kick down. It will kick down every time if your the sort of driver that kicks the pedal through the fire wall. This is on a fg anyway.

I may be wrong but these things have a drive by wire throttle with no feedback on the pedal

[Buf-Phoon]

like SteveR manual mode all the way.

[barnz]

I may be wrong but these things have a drive by wire throttle with no feedback on the pedal

Yeah they certainly do(have DBW), pretty sure what I was referring to is just a switch. Edited 02/07/14 12:04 AM by barnz

[discostig]

Yeah the detent is definitely there, hop in your car with it off and push the pedal down smoothly all the way to the floor, you'll feel it . I think it's designed so that in an emergency where you stamp the pedal it will kick down as much as it can regardless of if you are in manual mode or not, so you can avoid that incoming train or whatever

[barnz]

And this is how tuners do a 4th gear pull at WOT without kicking down.

[discostig]

Yeah good point, never thought about that!