So my MY12 2.0 with 77k on clock had a flashing glow plug light come on a couple of weeks ago. Turned engine off and back on, gone for a over a week. Then came back on. Same, turned off engine and disappeared for another week or so before eventually returning accompanied with a solid amber engine management light.

Had the vehicle recovered to the local Audi dealer who have looked at it and told me the following...

Hi, The Eml warning light on the dash & the engine running fault is caused by electric fault with the “egr” or “exhaust gas recirculation valve” which is fitted to the egr cooler, This component regulates small amounts of exhaust gas back into the intake for the engine and is used to control nitrogen oxide levels.

Also attached this picture
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I asked for clarity on why this had occurred and received this reply...

The egr is required to be replaced (not a serviceable item), because ingress of moisture has corroded the electrical component of the egr valve, which has caused a internal open and high resistive circuits. The Glow plug warning light on is the same concern, The Audi emission update is not connected to this complaint.

The quote for the work is £770, which to me, seems extortionate, given the part on Euro car parts is £385. Now I'm no mechanic, but this doesn't seem right.

Has any one else had this problem? I'm finding it hard to stomach the fact that for a car that's only 5 years old, I'm having to shell out this amount of money already on one fix, besides the service I've recently had done. I might expect this from a car that was 10+ years old or from a less reputable manufacturer, but from a 'prestige' one

Anyone any thoughts?