2005 E500 7G Firmware / Software Update! ECU / TCU
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2005 E500 7G Firmware / Software Update! ECU / TCU
I've had a 2005 E500 with the fragile 7G gearbox and the transmission pump blew so they put in a new updated pump.
Car worked fine for months but still had a weird shift, rough downshift, rough 2-3 upshift
Went to my friend at the dealer and he found there were two updates for my car, one for ECU and one for TCU
We did the updates and the car shifts a lot better now!
Normally they charge an hour of labor for this (about $150) but I recommend you guys do it if you have this transmission.
Also my redline went up from 6k rpm to 6,300rpm which was weird but cool since there was a lil bit of power up there
Car worked fine for months but still had a weird shift, rough downshift, rough 2-3 upshift
Went to my friend at the dealer and he found there were two updates for my car, one for ECU and one for TCU
We did the updates and the car shifts a lot better now!
Normally they charge an hour of labor for this (about $150) but I recommend you guys do it if you have this transmission.
Also my redline went up from 6k rpm to 6,300rpm which was weird but cool since there was a lil bit of power up there