|
Since the 603's have an electronic idle speed control, maybe it "got confused" or "stuck" for a second at a high idle? Since it was cold it could have brought it on. Electronics that are old can always do random strange things, so I am thinking it had something to do with that. It could also be a sticky throttle linkage like you said. Try lubricating the system to make sure it moves freely and smoothly.
__________________
-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)
|