See also:

Glow plugs
Turning the ignition key to MAR, the warning light on the dial comes on and goes off when glow plugs reach the preset temperature. Start the engine immediately after warning light switching off. ...

Chassis
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Glow plug warming
(Multijet versions - amber) GLOW PLUG WARMING FAILURE (Multijet versions - amber) Spark plug pre-heating Turning the ignition key to MAR, the warning light turns on and it will turn off when gl ...