I continue to have 'clunk' sounds associated with sustained elevation climbs of > 500 m. In September and October I twice went over the pass from the west Kootenays to the Boundary region (the Paulson Pass, from ~480m up to 1500 m, then back down again to about the same on the other side), over about 70 km, typical speed of 90 km/h. The 'thunk' didn't happen until we were close to the summit. Interestingly, as we started down the other side of the summit, it 'thunked' again as we started to regen, and only about 100 m below the summit. Colour me confused!
I've also had it leaving my town and heading up to the local ski area (earlier in the thread I said I hadn't noticed it last winter), this year I purposely kept the music off to listen for it, and after about 500 m elevation gain I got the 'thunk'. Last night I didn't quite get to the 'thunk' zone as I pulled off at the XC ski area slightly lower, but I instead had the hot electrical smell. This car gives me mild anxiety
2014 SL, 166,000km as of Sep 2018, 80% SOH
1 bar lost Aug 31/17 @ 54.5Ahr 83%SOH 79.72%Hx 127,413km
Commuting 142km round-trip; level 2 at home, level 1 at work