Problem Description and Possible Solution
The early versions of the central gateway module (which allows different systems to communicate with each other) have software problems.
Average mileage: 100,333 (70,000–149,000)
10 people reported this problem
2006 MB E350 (not a 4matic): I was napping at a rest stop and left the car running with the a/c on for a couple of hours. Once I began to drive away, my dash had the errors of "cruise control malfunction, SRS malfunction and oil sensor malfunction and to visit the workshop." I panicked due to the manual indicating that the airbags could suddenly deploy on their own. So, I immediately took it to the dealer and was told that I had a "faulty central gateway" and it needed to be repaired. I was somewhat in disbelief due to a similar incident occurred when the flashing of numerous things not working along with a "red light" about the low battery voltage which resulted in an axillary battery being required. So, I called around to get prices and other opinions and it all came back to the same issue. A $700 repair ($200 for parts; $500 for labor).
I had the same problem . interior light dim automatically, AC turns on and off automatically, and brake check engine lights turn on and off and show display malfunction. I had to take it to the dealer and found that the central gateway module part # 1695406945 has corrosion and warranty doesn't cover. Part price was around 180$ and labor is 800$ .. what a big crappy dealer here in San Juan Tx.