722.9 transmission repair manual pdf driver#
722.9 transmission repair manual pdf software#
722.9 transmission repair manual pdf code#

It doesn’t have a dipstick tube either therefore you will not be able to use the Mercedes 722.6 Transmission Fluid Dipstick Tool.Ĭhecking the fluid requires that you raise the car and remove the drain plug from the transmission. The 722.9 7G transmission has no oil dipstick.

722.9 transmission repair manual pdf code#

Related Failure CodesĮrror Code 0717 – The signal from component Y3 / 8n1 (turbine speed sensor (VGS)) is unavailable.Įrror code 0718 – The component Y3 / 8n1 (turbine speed sensor (VGS)) is defective.Įrror code 2767 – The signal from component Y3 / 8n2 (Internal speed sensor (VGS)) is unavailable.Įrror code 2768 – The component Y3 / 8n2 (Internal speed sensor (VGS)) is defective. If a new TCU is installed, it will require programming to match the VIN of the vehicle. This problem is usually fixed by replacing the conductor plate or the valve body which depends on the VGS version. P0717 Input/Turbine Speed Sensor A Circuit No Signal.P2734 Pressure Control Solenoid ‘F’ Electrical.P2716 Pressure Control Solenoid “D” Electrical.P0798 Pressure Control Solenoid ‘C’ Electrical.P0778 Pressure Control Solenoid ‘B’ Electrical.P0748 Pressure Control Solenoid ‘A’ Electrical.P0700 Transmission Control System TCS Malfunction.P0718 Input / Turbine Speed Sensor Circuit Intermittent.P0717 Input Turbine Speed Sensor Circuit No Signal.The most common fault codes of the 7 Speed Automatic Transmission are listed below.

7G Tronic Fault Codes Use an advanced OBD-II code reader to read and erase Engine CEL, Transmission, ETS, ABS, Airbag and other systems. Standing water in contact with the housing can cause damage to the transmission housing if left in contact for several weeks.ĭefective valve body or the conductor plate are usually the cause for these problems.Accelerating from a stop light can cause the car to get stuck in 2nd gear, limp mode.The first generation of the 722.9 may require the replacement of the valve body as well. Replacement required which can cost between $2000-$3000. Turning off and then off the engine may temporarily return the transmission to normal operation. As soon as this is detected by the TCU, transmission goes into limp mode.

Transmission slips between 1st and 2nd gear.

You will need either the dealer or an auto repair shop that has Mercedes Star Diagnostic C3 or C4 scanner.

722.9 transmission repair manual pdf software#

Upgrading the TCU software and resetting the transmission shift points may solve this problem.

Delayed or unpredicted shifting of gears.

Transmission does not shift gears or work properly until it warms up.

This is a list of common problems with the 7-speed 722.9xx transmission: Replacing the defective solenoid, conductor plate or the valve body is all that needs to be performed to fix the majority of problems in the 7-Speed transmission. There are a few common issues with this transmission, but the majority of the problems do not require a complete transmission overhaul. By 2008 it replaced the 722.6 5-Speed transmissions on all MB models. The 722.9 transmission was installed in Mercedes-Benz models as early as 2004. Any of the following scanners (Amazon links provided) should work: In order to do that, you will need a scanner that can read TCU fault codes on a Mercedes. If you are experiencing problems with your Mercedes-Benz it is important to also read the fault codes from the automatic transmission unit via the OBD-II port located under the dashboard. Mercedes-Benz 7G 722.9 TransmissionĪs with the 5-speed transmission, the 7G Tronic has the S / C mode meaning:ħG Tronic Transmission Problems – 722.9xxxīelow you will find a list of common problems with the Mercedes-Benz 722.9xx 7G Tronic 7-Speed Automatic Transmission. Location of the TCU mounted on the conductor plate on top of the valve body. By installing the TCU on top of the valve body Mercedes was able to reduce the length of the wires between the valve body and the TCU. While in the previous automatic transmission, the TCU was installed outside the transmission. The TCU is mounted on top of the valve body. One of the main differences between the 722.6 5-Speed and 722.9 7-Speed transmissions is that in the 7G Tronic the Transmission Control Module (TCU) is integrated inside the transmission. The 7-Speed Mercedes-Benz automatic transmission is known as:

722.9 transmission repair manual pdf driver#

For example, if you are an aggressive driver you may notice that the transmission will stay in gear longer to allow the engine to reach higher RPMs. The transmission control unit in the 7G Tronic transmission monitors your driving style and adapts the transmission shift points based on the way you drive.

Better matching of engine RPM and vehicle speed.

Better acceleration times due to improved control of gear changes and available gear ratios.

Here is a list of benefits of the Mercedes-Benz 7-Speed transmission over the previous generation 5-Speed transmission (722.6). There are several advantages to having 7 gears.