W211 E320 2002 - 2009 Instrument Cluster
My vehicle is a W211 E320 2002 model, with panoramic roof.
Rainwater seeped into the area behind the dash - Drivers side. This was due to a perished lower rubber seal on the front windscreen. Has been repaired.
Started the vehicle. Had a warning message regarding the SRS. Pressed the Up arrow on the steering wheel. Everything went haywire. All instruments in the cluster died.
Only the Clock, Speedometer and Tachometer remained operative. After a day or so later the Clock stopped working. The Speedometer stuck at 120 k/h. A day or two later the Tachometer stopped working and the Speedometer returned to 0.
Instrument cluster was removed. NO water / moisture was found.
The Drivers footwell carpet was removed and all water dried up, as well as all visible wiring. Fuses in the footwell were also checked - all okay.
Fuses boxes in Boot, Interior (Drivers' side) and engine area checked all okay. IC on Instrument Cluster was heated to reseat connections.
When connecting the battery (New) a RED Backlight is temporarily displayed on the Instrument cluster. Dimmer light switch for dash not working, although there is a display.
None of the remote controls on the steering wheel are operative.
Can someone please assist?
Thanking you in advance
Skipper56
Reading and trying ALL possible solutions found, relating to Instrument Cluster failure.
Will be rechecking all electrical connections in the footwell, as well as in the knee cover area.
Any suggestions?
Search done. Found video - Mercedes-benz instrument cluster repair.mp4 - on YouTube.
As I am not familiar with the intricacies of an Auto Electrician, and am desperate to correct this error, well, what more can I say. "The blind leading the blind?"
I am situated on the coast, and as Salt air / moisture has such high corrosive properties, anything is possible. The coastal area where i am situated is one of 2 places in the world where sea air has the Highest corrosive conditions.
Thanks
Thank you for the response.
Will follow your advice.


