Jaguar S-Type 2.7D year 2005 engine fault symbol comes on intermittently
Country: GermanyMake: JaguarModel: S-Type ExcecutiveYear: 2005Engine: 2.7 Diesel
Hellodo you have any associated drivability issues when the light comes on?any stuttering / poor idle quality or lack of acceleration?
No the car runs perfectly and there are no issues. The orange warning light goes off and stays off for a long time then suddenly comes on again. This has happened many times mostly when I use the car for short journeys. I made a trip of 3000 km and had no problems. Thanks
Helloif the car drives OK with the light on then its likely to be something minor On any car if you get a check engine light or other fault light this typically means one or more of the sensors has failed or has a faulty connection.The ECU senses this and may put the car into 'limp home' mode which typically limits the revs and the amount of power available. Usually the car is safe to drive for a short distance as the mode is intended is intended to get you home without incurring any engine damageThe quickest route to repair is to have the car plugged into a diagnostic machine which will read off the fault code stored in the ECU (providing the light is still on at this point) and indicate which sensor has failed or whether the fault is more serious.You can do a very rough and ready check yourself by unplugging sensors one at a time and seeing if any of them change the driving condition which would indicate the most recently unplugged sensor is the faulty one. This method is not foolproof though and reading a fault code off is the better method.it may also be an issue with the Diesel Particulate Filter ( DPF) if the ECU thinks the DPF is blocked then it won't allow full engine power so I'd suggest;taking the car for a long drive where you can keep the engine rpm up over 2000 rpm fro around 30 mins this will get plenty of heat into the system and get the system into re-gen mode
Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
That's good information Mat, thank you. A case in point was during the last 7 days. I took the car for a drive of about 15 minutes with many stops at traffic lights. The amber engine warning light came on. I left the car in my garage periodically checking if the XXXXX XXght was still on, on three checks it was. Then I had to take my Son to the airport a drive of 25 minutes as I started the car the XXXXX XXght was off. It remained off for the round trip to the airport of 50 minutes and the XXXXX XXght stayed off. Today I took my wife shopping a round trip of about 6 kilometers with lots of stops at traffic lights. Half way through this journey the XXXXX XXght came on again. I do not notice any change in the car's power when the XXXXX XXght is on but I will take it out for your suggested XX XXXXXX XXXXX in the countryside where there are fewer traffic lights and see if it goes off. I will also wait until the XXXXX XXght comes on again and take it to a place where they have diagnostic equipment and have it checked out. Thanks again for your great help.
Best regards XXXX XXXXXXX, Germany
No problem from the additional information it sounds likely that the DPF may be a bit clogged up so a giving the car a good work-out should help clean it out