Alex Crow
Senior Member
- Joined
- Jul 9, 2009
- Messages
- 10,677
- Reaction score
- 47
- Location
- Super Suffolk
- Your Mercedes
- W169, W124, w202, W203, KTM 250 EXC, VW T25 camper and a Polo in a pear tree
hello peoples.
had a customer in today with a yellow instrument cluster. background and messages in two shades of yellow, very hard to read! i connected star and checked for any relevent codes - none stored. i carried out the display test and all was still yellow, one display test is supposed to give a white screen, still yellow. i noticed that without the engine running the colour was closer to the white-on-black expected, further checking showed that the lower the voltage the better the display looked - it was just right when cranking!! also moving one's head to the side made it look better. this is a very early w211 btw.
the conclusion i am sure you will draw is that the central display is shot, but have any of you heard of this one before? and are there any known fixes other than replacement? also, and here is the biggie, will a s/h unit be accepted by the eis etc (with coding of course)? any help on this one much appreciated.
incidentally he denied charging the batt while connected, or jump starting, but there was a can bus event logged in most of the modules which corresponded to the approx mileage the fault began. no over voltage or under voltage codes recorded at all btw.
had a customer in today with a yellow instrument cluster. background and messages in two shades of yellow, very hard to read! i connected star and checked for any relevent codes - none stored. i carried out the display test and all was still yellow, one display test is supposed to give a white screen, still yellow. i noticed that without the engine running the colour was closer to the white-on-black expected, further checking showed that the lower the voltage the better the display looked - it was just right when cranking!! also moving one's head to the side made it look better. this is a very early w211 btw.
the conclusion i am sure you will draw is that the central display is shot, but have any of you heard of this one before? and are there any known fixes other than replacement? also, and here is the biggie, will a s/h unit be accepted by the eis etc (with coding of course)? any help on this one much appreciated.
incidentally he denied charging the batt while connected, or jump starting, but there was a can bus event logged in most of the modules which corresponded to the approx mileage the fault began. no over voltage or under voltage codes recorded at all btw.