Let's talk about issues -
Oil leaks - turbos, valve covers, cam seals - all of which are labor intensive
Timing belts due to poorly sourced parts the first replacement
Plastic Impeller water pumps (should be changed to metal at replacement)
Cam chain tensioners - also a oil leak spot at back of heads
Ball joints in the front suspension (8 total)
Tie rods seizing that then require replacement due to rubber bushings
Front Axle boots tear
AIR SUSPENSION - need I say more? It's garbage
The cooling system as a whole sucks, heater cores clog, auxiliary water pumps fail, the thermostat is 5.6 hours because it's BEHIND THE WATERPUMP.
Secondary air injection system failure - the pump fails, or fills with water and fails, the old plastic hoses are brittle and break trying to remove them for other service
Flex Pipes fail at high rates and are incredibly expensive
Alarm system issues with randomly going off and difficult at times to diagnose