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Removing, installing and checking ceramic glow plugs > < Checking glow plug system

Leon Mk2

Characteristics of ceramic glow plugs
Characteristics of ceramic glow plugs
  WARNING
The ceramic glow plugs → Fig. are susceptible to shocks and bends. For this reason, glow plugs falling down -even from a small height (approx. 2 cm)- must never be used, this also applies when no damage is visible. It is absolutely necessary to follow installation instructions, otherwise the glow plug can break and cause damage to the engine.
   
Visual features of ceramic glow plugs
Vehicles with 2 valves per cylinder cylinder head
-A- = Metal glow plug, colour-coded -arrow-.
-B- = Ceramic glow plug with support tube -arrow-, not colour-coded.
Vehicles with 4 valves per cylinder cylinder head
-C- = Metal glow plug, colour-coded -arrow-.
-D- = Ceramic glow plug with support tube -arrow-, not colour-coded.
Remove and install or check ceramic glow plugs → Chapter.
  N28-10028

Removing, installing and checking ceramic glow plugs > < Checking glow plug system