Mercedes-Benz 209 D Operating Instructions Manual page 79

5.6 Supplementary heater
For detail s
refer
Cause
Corrective action
to sect ion
Heater will not ignite ,
Glow plug burnt out
Workshop respons ibility
control unit shuts off
Glow plug is grounded or
automatically
carbon-fou led
Workshop respons ibility
Ambient temperat ure below
Comply with measures required
320 F (OOC)
lor winter operation
2.8
Fuel pump will not feed
Workshop responsibil ity
Heater motor will not start
Battery flat
Charge
4.10.5
Fuse defective
Roncw ruse
4.10.2
Commutator or carbon brushes worn
wo, kshop responsibility
System overheats
Outlet openings in passenger
compartme nt have been blocked
Glenn
78