EAT6 realignment

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mara-
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EAT6 realignment

Unread post by mara- »

Hello,

I have Peugeot 308 T9 BlueHDI with EAT6. Since I bought the car, shifting to 3rd or 4th gear would be randomly a little harsh, you have a feeling like someone pushes you from behind when it does this. Yesterday I was browsing the Diagbox and I discovered two procedures under the Gearbox section:

- partial realignment of programmed values
- full realignment of programmed values

Both procedures shows that they are used when replacing gearbox ecu, gearbox, or both. So, my question, could this do any harm running on the car which didn't have anything replaced and is there a point in running those procedures, could running them help with shifting?

Just to mention, oil was changed in the gearbox, didn't make a difference.

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xantia_v6
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Re: EAT6 realignment

Unread post by xantia_v6 »

The intermittent nature of your problem is probably because the automatic tuning of transmission parameters is unable to converge on a set of parameters that works well under all conditions. It is possible that the transmission is trying to mask the symptoms of some internal hardware fault. I am not familiar enough t=with this particular transmission to know what that might be.

triggering the realignment procedures is probably not going to do any harm, but there may be some special instructions about how to drive the car to ensure that the procedure completes correctly.

wheeler
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Re: EAT6 realignment

Unread post by wheeler »

Not sure what a EAT6 gearbox but if its a controlled manual gearbox like EGS or sensodrive then make sure you have another running car connected to the battery with jump leads while carrying out any re initialisation procedures, they can be quite hard on the battery & if the voltage drops too low the procedure will fail.

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xantia_v6
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Re: EAT6 realignment

Unread post by xantia_v6 »

The EAT6 is an upgraded, more efficient version of the AM6, so is a "conventional" torque converter hydraulic transmission.

wheeler
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Re: EAT6 realignment

Unread post by wheeler »

Ok ignore what i said about connecting another car with jump leads then.

mara-
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Joined: 26 Feb 2018, 20:05
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Re: EAT6 realignment

Unread post by mara- »

@xantia_v6

Thanks

It would be very useful if anyone had the access to the Diagbox documentation and provide the information about those two procedures.