Since the1 temperature is again below 0 C it became aparrent that my MB has glow problems. In the mean time I replaced the battery, the 4 glow plugs and the glow relais. I went to a garage to read out the error codes, but there were no problems found. So my problem still exists.
I can't measure any control signal on the glowrelais, so I presume there is something between the computer and the relais, perhaps a driver?
Has anyone any idea where I can look and how to dive deeper in this problem?

Kind regards,
Satori

 

In the end it appeared to be an injector problem and not a glow problem.
I replaced the broken injector and have to wait for a temperature below zero Celcius to have the ultimate test.

Kind regards,
Jan