2014 GL63 - Engine Out - What else to get done?




The MB Warranty is covering an engine out/in service to replace:
1) wiring harness
2) camshaft position sensors (this was done before and didn't fix the problem)
3) ECU
I'm going to ask them to inspect the (thanks to a lot of members here who have chimed in)
4) cam adjuster solenoids and
5) Oxygen (O2) sensor (I believe this plugs into the downpipe with the catalytic converter)
What else should I have inspected or done from a maintenance perspective? (around 65k miles)
6) engine mounts?
7) anything else?
What about from a performance perspective?
8) Weistec W3 Turbos? Renntech turbos? Pure Turbos?
9) Weistec True Downpipes? (not sure if they fit)
10) Wail Motorsport Engineering True Downpipes (bridge pipe)?
PS other items Wail has:
Thanks in advance.










