My engine light is on, the garage says it is an EGR fault, what can I do?
I have a 2009 Peugeot 3008, 1.6 HDI with 110,000 miles recorded. I have owned it for three months. Recently the engine light has come on several times, and gone off again, and then came on permanently, listing an EGR fault although the car showed no adverse signs or effects..
I have had the car checked at a local garage, and the fault cancelled and have been advised to use better quality fuel, (Shell V max etc). Is this a common fault?
I have had the car checked at a local garage, and the fault cancelled and have been advised to use better quality fuel, (Shell V max etc). Is this a common fault?
Asked on 7 November 2023 by MARTIN WARDLE
Answered by
David Ross
The Exhaust Gas Recirculation valve (EGR) is a common feature on diesel engines to reduce NO emissions by returning some of the exhaust gases to the combustion chamber, reducing temperatures and therefore NOx emissions. On older vehicles with higher mileages the EGR valve can become clogged up with carbon deposits, causing intermittent faults or for it to stop working completely. Using a premium fuel may help with this, as they containing cleaning agents which can reduce carbon build-up.
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