Whilst on a recent journey in my 37,000 mile 2004 Nissan Almera Tino, a message on the screen came up advising me of a possible malfunction of the Engine Control System, the remote possibility of an immediate breakdown, the need not to drive at high speed and to contact a Nissan agent as soon as possible. I took the car to my local Nissan dealer from whom I bought the car new and who has always serviced and maintained it. They ran a diagnostic test, which they say took about an hour, for which they charged £90.48. The code indicated a fault in the fuel system. They informed me that further tests were needed which could take up to 4 hours at a charge of £90.48 per hour. I expressed my amazement that 5 hours were needed to find the faults, but was told that they worked in line with Nissan recommendations and so I reluctantly agreed to this. After these tests were carried out I was informed that faults in the air flow meter and oxygen sensor had been detected and that the costs for these parts were £355.90 and £152.03 respectively. A further 1 hour's labour would be needed, or more if the fitting did not prove to be straightforward. As a result, I am faced with a bill of at least £1,050. I consider these costs to be unreasonable. I intend to write to Nissan Customer Services to ask for a major contribution towards the costs. Do you agree that 5 hours is an unreasonable length of time to diagnose faults that shouldn’t have arisen in the first place, and that these charges are excessive?