The PAS fluid pipes corroded at 55000 miles. I was told by a Renault dealer that the placing of the pipes meant that they were very susceptible to road salt damage in the winter.
The replacement of these pipes was a major job involving the removal of the steering column, so I did as advised and replaced all pipes at the same time, although not all required doing at that point.
There is a leak somewhere, water gathers under the rear seat. I suspect the rear windscreen seal is the fault, but it is proving difficult to solve.
The bonnet catches snapped last year.
The immobiliser was causing problems in heavy rain, and I found that rain was getting into the roof circuitry via the base of the roof aerial. It was OK once I applied a waterproof gel seal, which I have to re-apply every few months.
The car is no longer new, so I'm not surprised at a few 'aches and pains' with it.
On the whole, it has been a great car, I like having lots of boot space.
Petrol consumption is good. I get around 40 mpg out of town driving.
I am not very tall, but the driver seat is versatile enough to get me into a comfortable position for long distance driving (not all cars suit people only 5 feet tall!)
The only thing that gets me frequently annoyed is the fact that as Renault is a French make, some of the integral parts are for left hand drive, and the windscreen air blower clears the passenger side faster than the driver's side. Zut alors!
For the leak problem, check the inner door membrane this could be the answer to your problem. If it;s torn at the bottom or poorly fitting it lets water into the car instead of forcing it to go out the bottom drain hole. Good luck.
My laguna is really like a proper laguna, as the meaning of the word - full of water, all the carpets are soddened and I am having real difficulty locating the problem, although I'm pretty sure its coming from the roof somewhere and finding its way through the inside of the door membrane into the carpets.