Just a small note: Not all 15P EU3 compliant engines have EGR cooler.
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Just a small note: Not all 15P EU3 compliant engines have EGR cooler.
That list was pulled from quick scan through RAVE and only includes significant mechanical changes that are highlighted as being specific differences between EU2 and EU3.
There are two parts listed for the pump bolt - the original part was LYG101210, which was replaced at some point with the current part LYP101400. If you could identify the date the part was changed you might be able to find a change over date.
I've seen mention that it's 50:50 that a 2004My will have the loctite coated bolt, which suggests that the change occurred in mid production of the 2004MY.