Citroen DS4 Exhaust Gas Recirculation Valve (EGR) Problems
Problems mentioning the Exhaust Gas Recirculation Valve (EGR) on the Citroen DS4
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What problems can be caused by a faulty Exhaust Gas Recirculation Valve (EGR)?
Check Engine warning light showing on dashboard
The dashboard warning light showing on this page (or one very similar, sometimes a slightly different shape or colour) has appeared on the dashboard and doesn't go off when the car is running.
Engine doesn't start up and/or cuts out when running
The engine doesn't start up very easily and will often not start at all. When it is running it can cut out completely without warning.
Engine does not sound or feel normal
The engine doesn't sound normal, it can sound like it's struggling to keep running or out of time. The engine note produced by the engine can also sound very different, it's often a deeper, more bass heavy sound that it is normally.