A few months ago, I had an injector, spark plug, and coil pack replaced under warranty. This was after an engine warning light and going in to limp mode. This happened just a few weeks after buying the car. At the time I was using 95 RON fuel, to see how the cheaper fuel would perform. I later tried 97 RON, and 99 RON fuels. The high octane 99 RON make a great difference to performance. After 4-5 tanks my car has exceptional torque, and doesnt suffer from the rough idling and slow response I had before. I think it would be useful for posters to state what kind of fuel you are using. I have found 95-97 RON fuel to be awful in this car. Tesco Momentum fuel appears to suit this car very well. I do wonder if the engine fault I had was down to bad fuel, and I dont know what the previous owner used to use. My car was made September 07.
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