3 days ago ยท Symptoms of rear axle alignment problems in the Citroen Grand C4 Picasso first generation may include uneven tire wear, a pulling sensation while driving, or a feeling of instability while driving at higher speeds. In some cases, the driver may also notice a vibration in the steering wheel or the car may drift to one side.

The 'full auto' - (not EGS) gearbox is not all that common in the C4 range so you may have to await a reply on this 'Citroen Assist' BTW is not usually staffed by Citroen specialists. It's farmed out to people like the AA (Automobile Association) or RAC (Royal Automobile Club) in the UK (whichever charges least probably) - don't know who it

Gearbox construction: Automatic. Transmission type: 8 EAT, 6 AT. Average acceleration: 9.5 s to 60 mph. Average optimal engine speed: 4500 rpm. Average torque: 294 Nm. Weight to torque ratio: 5 kg to 1 Nm. Average weight: 1411 kg / 3111 lbs. Maximum load for transmission: 2041 kg / 4500 lbs. Gearboxy rating: 8 / 10.

The knock is particularly obvious over speed bumps. My car started developing this intermittent knock from about 2,000 km. The dealership had another demo vehicle which also had the same issue when they tested it. They are currently awaiting advise from citroen Australia for the next course of action as they cannot find the root cause.
I see your C4 is a newer model. I presume its a six speed auto. I dont know if they have to same automatic gear boxes. Thanks for the tip about looking under the battery for the breather. what type of fluid did you use and what quantity? I have just bought the car.
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