My wife's Volkswagen Golf DSG has had an intermittent EGR light popping on and off for a few weeks. I got it checked at the last service and Volkswagen said it was a bit sooty on the outside of the unit, I assume the cooler, but it was fine for another year or two. We have had a specialist run a diagnostic on it a few times and there is no fault indicated. Last week the gearbox light started popping on and off - again took it to the specialist and the diagnostic showed no faults, even if lights were on.
The specialist is charging £700 for an EGR replacement but I'm not sure it's actually the problem. Could it be the sensors or does it just need a clean on the EGR valve? Or worse, the wiring loom? It is only used around town, 45,000 miles maximum and is driven around Dorset. No loss on power, no limp mode events, she runs it in sport and and uses quality fuel. Not too worried about the EGR but the gearbox light is making us nervous.