Al4 Characteristics In 2004 C5 2.0i Petrol

[mlkey]

Hello everyone,

 

This question is ideally aimed at any C5 2.0i petrol auto drivers, but I am also interested in any other vehicles using the AL4 transmission.

 

When driving the car gently, pulling away with light throttle, it changes into 2nd at around 10mph with the converter still unlocked. I continue to accelerate and at about 25mph the converter is locked bringing the RPM down a little. At 30mph the transmission changes to 3rd and then 4th at around 40mph, both of these changes are with the converter locked.

 

If I repeat the above while accelerating a little harder, the transmission changes to 2nd and then locks the converter almost immediately before changing to 3rd, it just sounds a bit peculiar. I am not suggesting there is anything wrong, although there could be as I have not experienced other AL4's.

 

My question is, do others with this transmission experience this same weird 2nd gear behaviour?

 

Thanks.

[seefive]

This is not a good sign,I'm afraid. I had a load of trouble with AL4 slipping, and also locking/hesitating in low gears,culminating in a £2k bill for a rebuild.

 

On the plus side, the hesitation/locking was resolved by resetting the adaptive software. (it briefly persisted after the rebuild although the slipping was cured, which adaptives had failed to fix). May be worth an oil change too. These boxes are not "maintenence free" as Citroen would have you believe.

 

Same box causes problems in Renaults

 

cfryve is the resident expert on this site

 

Bonne Chance..