I compared my error code with the error codes shown in the SIB but unfortunately mine are different.In SIB codes are related with the glow plug controller but on mine its 4A4E which is simply cylinder 3 open circuit.Which means they wont relate my problem with the SIB.But still i am gonna try first with the dealer before ordering glow plugs.I have allready checked with one dealership and answer was "glow plugs are not covered".Will check with different dealer.

I think they wear out eventually.Ambient temp might be playing role in their life expectancy as in cooler temps,they go more heating cycles.