Group Parts [MERCE R-CLASS (W251, V251) R 300 CDI (251.021, 251.121, 251.026, 251.126)]

BERU
Control Unit, glow plug system GSE114 
Control Unit, glow plug system GSE116 
FACET
Sensor, coolant temperature 7.3343 
Sensor, coolant temperature 7.3343 
Sensor, coolant temperature 7.3343 
VEMO
Sensor, coolant temperature V30-72-0034 
ERA
Sensor, coolant temperature 330791