![]() ![]() It would be best to have a transmission that shifts smoothly and usually. Do not race the vehicle unless that’s how you always plan on driving. After you follow this programming method of the TCU/ECU, drive the car for 15 min. ![]() Once you perform this procedure, the Engine Control Unit (ECU) and Transmission Control Unit (TCU) will work together to learn how you drive by monitoring your driving pattern. Wait 2 minutes. During this process, the key is left in the ignition in the OFF position.Some models may need the key to be removed. Continue to keep the gas pedal pressed for at least 10 seconds. You will activate the kick-down switch by pressing the accelerator pedal to the floor. Position II: You should hear two clicks, and all your dash lights should turn on. You should see all the dash lights come on. ![]() Procedure Reset Transmission Adaptive Learning DIY If you drive it gently, it will adapt to that and change gears earlier. If you race your Mercedes-Benz, it will remember that and keep the gearbox in gear longer. In other words, it learns your driving style. It monitors different sensors, such as the throttle or the gas pedal input. It records the driving style, usually by looking at the last 40 shift points, and adjusts so the car shifts accordingly to your style. Yes! The Engine Control Unit (ECU) monitors your driving habits. This reset procedure works on automatic transmission only. Today, this is about 95% of Mercedes-Benz cars except models made before 1995. This procedure applies to all Mercedes-Benz with the 5-speed 722.6 and 7 -speed 722.9. This will make your car fun to drive again it’s like getting a free tune-up. Try this if your car has been shifting sluggish recently. No tools are required to perform this procedure and make your Mercedes-Benz shift like new. These simple do-it-yourself instructions take less than 5 minutes. This procedure will reset the adaptive shifting points in your Mercedes-Benz automatic Transmission Control Unit (TCU). ![]()
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