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C4 - DS4 Owners :: Forums :: C4 Picasso and Grand Picasso - PRE 2013 only :: C4 Picasso and Grand Picasso General questions
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Help with my transmission questions please :)
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padlad   
Tue Mar 09 2021, 05:40am
Member No: #49470
Joined: Sep 24 2017
Location: scotland
 Hello,

Im going to change my transmisson fluid in my c4 picasso 2.0i 2007 automatic petrol but wondered if anyone could tell me the excact amount of oil to re-fill it once its drained i think its 3.1 litres but if anyone could confirm would be awesome also im not 100% sure where the transmisson drain plug is?

Thank you in advance
vexorg   
Tue Mar 09 2021, 10:36am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
 Is it a real auto or a fake auto?

The fake auto should be the same process as a manual, just drain it and fill it.

A real auto is difficult to do since much of the fluid will be left in the torque converter and cooler. Best way I saw to do this was to disconnect one of the cooler pipes then start stop the engine draining a bit at a time and topping up by the same, eg run engine until you drain 0.25l, fill 0.25l, repeat several times.
padlad   
Wed Mar 10 2021, 02:10am
Member No: #49470
Joined: Sep 24 2017
Location: scotland
 Whats the meaning of fake or real auto?

Its a semi auto so does that make it a fake?
vexorg   
Wed Mar 10 2021, 03:54am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
 A real auto has a torque convertor and uses hydraulics to do the gear changes.

A fake auto is a manual with electronics controlling the gears and clutch.
padlad   
Wed Mar 10 2021, 10:11am
Member No: #49470
Joined: Sep 24 2017
Location: scotland
 Ok thank you
vexorg   
Wed Mar 10 2021, 10:13am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
 Which do you have, apparently you can tell by the gear shifter, I've got a manual so cant help there.
routemaster1   
Wed Mar 10 2021, 10:19am
Member No: #574
Joined: Jul 08 2007
Location: Dorset
 I would expect this to be a 6 speed EGS gearbox, as this appears to be the only auto fitted to 2.0L petrol cars. Look at the gear selector. An EGS box doesn't have a park (P) position. The traditional type with a torque converter will have P.

Could I ask why you wish to change the oil?
padlad   
Thu Mar 11 2021, 02:14am
Member No: #49470
Joined: Sep 24 2017
Location: scotland
 I got a leak in transmission i fixed the leak but im sure my transmission oil is lower than recomnended and as i have no idea what oil is in it as i have only owned the car for 1 year thought it best to change the transmission oil rather than just topping it up.. My car has no P position just Reverse Neutral Automatic and Manual
routemaster1   
Thu Mar 11 2021, 02:37am
Member No: #574
Joined: Jul 08 2007
Location: Dorset
padlad wrote ...

I got a leak in transmission i fixed the leak but im sure my transmission oil is lower than recomnended and as i have no idea what oil is in it as i have only owned the car for 1 year thought it best to change the transmission oil rather than just topping it up.. My car has no P position just Reverse Neutral Automatic and Manual


EGS then.
vexorg   
Thu Mar 11 2021, 06:12am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
 Usual process is just drain it out from the bottom drain plug. Then fill it with the set amount recommended for your box through the top breather.

The citroen repair docs dont list EGS gearbox for your model, it lists BE4, ML6C, AL4, AM6C, BVM6, and MC manual piloted 6-speed gearboxes.

AL4 and AM6C look to be real autos.
ML6C is manual, same as mine. And BE4 is manual.
I presume you have the MC piloted manual, if so, it needs 2.1 +/- 0.1 litres
 

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