Everything on my 300SD works, except for the passenger seat switch, it is damaged, I'm replacing it tomorrow.
(anal alert) I replaced the drivers switch yesterday....mine are the hardwired switches, so it takes about 2-3 hours of soldering to swap a switch.
Theoretically my A/C doesn't work, but I removed it, so it doesn't count.
Everything works perfect, even my add-on remote locking system.
My tach has been flaky now that it is so cold out, but I'll fix that tomorrow too.
Every single solitary piece of equipment on my 300E works perfectly. Including the A/C, smog pump system, and sunroof (both tilt and slide).
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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)