Date registered: Dec 2005
Vehicle: 222.132 & 221.122 & 212.025 & 906.633
Mentioned: 3 Post(s)
Quoted: 32 Post(s)
This is the way your car tells you that there is a fault in the pre-glow system. This should be explained in the user manual.
It is likely a bad glow plug, possibly a broken relay as a consequence. You should have the glow plug fixed as soon as possible, otherwise it may become difficult to remove the old plug (it may already be difficult but it can only become worse).