2001 Honda CR-V DOES NOT have an EGR valve!
Yes
Diesels are normally noisy anyway - are you sure it your valve tappets? If so, they could be out of adjustment. Take it to a shop and have them checked and adjusted.
UK or Japan for the 2006 crv
It has a chain.
1500 lbs is the towing capacity of a 2006 Honda CRV
Yes, it uses a belt NOT a chain.
The 2006 Honda CRV came with many special features. Some of them include passenger air bags, CD player, standard or automatic transmission, and power windows.
How to change air filter on 2006 Honda CRV SE?
Probably yes. Honda's engines are so-called "interference engines."
Replace them every 100,000 miles.
It is on the throttle body just below the throttle linkage.