The only inspection I did was looking at the pump. On the LR4 it's located at the front of the engine at the bottom on the passenger side of the crank shaft. Next to the alternator.
I did it myself. It isn't bad to do. Just take off the skid plates and unbolt it.
The Part Number I used is
You can find it on eBay for about $200.
The only thing to watch out for is that you will need new bolts because the new pump has a different thickness.
I found some at my local hardware store. But the recommended pn is Qty 2 LR060479 bolt
I did it myself. It isn't bad to do. Just take off the skid plates and unbolt it.
The Part Number I used is
PIERBURG LR082226 / 701188220.
You can find it on eBay for about $200.
The only thing to watch out for is that you will need new bolts because the new pump has a different thickness.
I found some at my local hardware store. But the recommended pn is Qty 2 LR060479 bolt