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Volkswagen Golf - why is the emissions light on?
Can you tell me why the emission light keeps switching on my 2004 Volkswagen Golf?
Asked on 28 March 2014 by Bob10
Answered by
Alan Ross
The reason for the warning light could be a number of things.
I.E DPF - needs regenerating
2.EGR valve
3.Lambda Sensor fault.
4.Loose connection
5.ECT ( engine coolant temp sensor)
You could try and do the regenerating yourself. You need to take the car onto a motorway/Dual carriage way of enough length.
Then run the car so that the rev counter is at a min if 2000rpm for approx 30 mins.
This can in some cases allow the build up to be burnt of (from the PDF)
Other than that you may need to have a diagnostic check carried out which should then show a fault code(ie P ---- 4 numbers) which can then be related to the fault.
I.E DPF - needs regenerating
2.EGR valve
3.Lambda Sensor fault.
4.Loose connection
5.ECT ( engine coolant temp sensor)
You could try and do the regenerating yourself. You need to take the car onto a motorway/Dual carriage way of enough length.
Then run the car so that the rev counter is at a min if 2000rpm for approx 30 mins.
This can in some cases allow the build up to be burnt of (from the PDF)
Other than that you may need to have a diagnostic check carried out which should then show a fault code(ie P ---- 4 numbers) which can then be related to the fault.
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