2008 Mercedes S550 5.5l Odometer Dashes - Mileage Correction (EEPROM)

Today we have a 2008 Mercedes S550 that the customer said the cluster stopped working. They went to Mercedes and they said it would be $3000 for a new cluster but there was none availible so they put a used cluster in then said they could not program it. Let's try to fix the mileage on the new cluster and see if we can get the correct mileage to display. Currently the car just shows dashes for the mileage.

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Tools Used:
im508 Autel MaxiIM
https://www.aeswave.com/im508-Autel-M...

XP400
https://www.aeswave.com/XP400PRO-All-...
XP400PRO All-in-One Key Programmer

HxD - Freeware Hex Editor and Disk Editor
https://mh-nexus.de/en/hxd/

LCD Display Electronic Hot Air Heat Gun Soldering Station Nozzles 200W 110V US https://ebay.us/qs3Bem

Tachosoft
https://www.tachosoft.com/old_tachosoft/

0:00 Intro
0:30 Disassembling The Old Cluster
2:15 Chip Located!
3:34 Desoldering The EEPROM
5:22 Reading The EEPROM
9:52 Soldering The EEPROM Back On
11:10 Bench Powering The Cluster
13:10 Checking The Current Cluster
14:58 Trying To Find Current Car Mileage
17:30 Taking The Cluster Apart
18:00 Reading New Cluster EEPROM
18:40 Writing Old Cluster EEPROM To New Cluster
19:17 Testing New Cluster
21:32 Final Testing