citroen709

The dealer told me to make sure that I never had the oil level filled to the top mark on the dipstick but to the mark below that one. The chap that did my last service told me that too much oil will cause the faulty reading. While I was having the problem and the dealer was trying various cures, the problem would go away for up to a week then come back. I have now not seen the problem for five weeks so hopefully it all rests with the oil level. There were no reset solutions as far as I know.

I had this problem for over three months before it was cured. Several attempts were made locally (in Melbourne) before they decided to go to France for diagnostics. Then the dealer rang to say they needed the car for a couple of days as they had 10 pages of checks to do. Finally found the problem to be an overfilled sump. It seems that the oil level must not reach the full mark on the dip stick but only go to the mark directly below the full mark. My next service came and I went to an unauthorized Citroen dealer and did not mention this until I picked up my C5. This gentleman told me he had known about the problem for a few years and that the oil level must never be filled to the top mark of the dip stick. My next service will be here and not at the dealer.

Hello everyone. Happy to be a part of a forum such as this one. I have a C5, my third. The first one was written off by a red light runner who T-boned us, luckily with no injuries to anyone. The second was a replacement for that one. The third and current unit felt so good during the test drive I traded on the spot and have been very happy with all except a minor problem currently. The seemingly common "Oil Level Measurement Invalid." Hope to enjoy my stay and maybe learn a few things and perhaps contribute something useful one day.