Hello Darren and Dan,
Sorry to bother you both, but I find this interesting, if only from the point that it exposes my ignorance of the detail of such things!
Now you chaps know what you are talking about here, and my experience extends only as far as cleaning EGR valves on BMW engined Rovers and Land Rover, and with Dan's explanation it becomes clear that this must be the old fashioned clean-it-stick-it back-on/blank -it -off type. Nice and simple, and I like simple!
Latest generation VAG ones might be more complex and sensor controlled then, and if so, is this where the issues are throwing themselves up following these recalls? If so, would you have any ideas as to what actually goes wrong with the EGR valve that warrants changing it , and why would whatever they do during the recall has such a bad effect on it?
Would I be right Darren in understanding that if you have the engine remapped, it is possible to do something to over ride these issues, and if so, would such remapping be able to be done on the generation of engines now subject to recall?
Where I getting to is, would it be useful for owners of cars now giving problems after recalls (EGR valve-wise) to have their cars remapped (cheaper?) rather than paying to have new EGR valves fitted?
Over to you good folks, since I believe you are never too old to learn!
Many thanks and kind regards,
Gareth.