Mercedes-Benz AMG GT S Window Won't Go Up Or Down

Common Causes of Window Malfunctions in Your Mercedes-Benz AMG GT S and How to Fix Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
36% chance it's the
Fuse, Relay or Electrical System
0%
20% chance it's the
Window Motor
0%
24% chance it's the
Window Regulator
0%
20% chance it's
Something else
The most common reasons a Mercedes-Benz AMG GT S window won't go up or down are window's electrical system such as a fuse or relay, a broken window motor, or a broken window regulator.
  • Fuse, Relay or Electrical System: A blown fuse or a faulty relay can disrupt the electrical circuit, causing components to fail or operate intermittently.
  • Window Motor: A faulty window motor or a broken window regulator can prevent the window from moving up or down properly.
  • Window Regulator: A faulty window regulator can cause the window to become stuck or operate erratically due to worn gears or a broken cable.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a Mercedes-Benz AMG GT S window won't go up or down?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

If the door window motor fails, the window may not open or close, or it may operate intermittently. Traditionally, problems with power windows were caused by faulty switches or electrical wiring - especially the wires running between the door and the vehicle body that are subjected to repeated flexing. In these cases, the window might operate intermittently when the door is opened and closed. While this may still be the case on newer cars, it is increasingly common to find window motor problems that originate with a control module. Still, the switches and wiring should be checked thoroughly before replacing a window motor.

If one of the windows in a vehicle will not open or close properly, a failing door window regulator might be the cause. A window that is moving intermittently, or one that gets stuck on the way up or down, could also indicate a broken regulator. Other symptoms might include a clicking, chattering, or grinding noise when the window moves. In some cases a severely damaged window regulator could cause the window to drop inside the door.

When a switch can not make contact and close the circuit, the window cannot be raised and lowered. If the switch on the driver's door will not raise or lower the window in question, but the switch on the corresponding door works just fine, this is a good indication that there is a switch failure. This works the other way around, as well. If the switch on the door does not cause the window to function, but the driver's switch does, that is an indication of a passenger door window switch failure.

Due to the nature of electrical systems on modern vehicles, the range of problems these can cause are nearly limitless. However, there is a way to categorize them in two ways. Permanent and intermittent problems. Permanent problems appear and remain. This may be the vehicle will not start, the radio does not work, or the door chime will not turn off among many, many others. These problems are more straight-forward to diagnose since they present themselves at all time. This means there will always be a fault to find. Intermittent electrical problems, however, can be difficult or impossible to locate, since they appear then disappear without warning. The best case scenario for an intermittent issue is when replicating the problem is easily accomplished and understood. This allows a technician to make an issue semi-permanent, allowing them to find the fault. Other issues that come and go without warning and cannot be replicated on demand must occur when the technician is servicing the vehicle, otherwise there is no problem to correct. It is most important to understand that electrical system faults always require inspection, and can include the vehicle working in any manner, or not working at all.

Like we noted in the last section, general diagnosis symptoms are the most vague of the bunch. There are several diagnostic spectrums, electrical diagnosis, drivability diagnostics, engine diagnostics, transmission diagnostics, and the list could continue for about 5 or 10 more spectrums of diagnostics. The most important take-away here, is that general diagnostics are diagnostics that have no other spectrum in which they fit, or the problem is unknown. This means that any vehicle left outside of a repair facility with the keys and an authorization to perform diagnosis will be diagnosed under the general diagnosis spectrum.

Troubleshooting Window Operation Issues in a Mercedes-Benz AMG GT S

When faced with window operation issues in your Mercedes-Benz AMG GT S, it's essential to adopt a systematic diagnostic approach. Begin by checking the simplest potential causes, such as blown fuses or faulty relays, as these can often be resolved quickly and without extensive tools. If all windows are unresponsive, inspect the fuse box for any blown fuses that may need replacing. Next, consider the window switches and wiring; intermittent operation or unusual sounds can indicate a failing window motor or regulator. Utilizing a diagnostic tool like the YOUCANIC Full System Scanner can provide valuable insights by reading error codes that pinpoint the issue. If the problem persists, try performing a window reset by holding the up button until the window is fully closed, then maintaining pressure for a few seconds. This recalibration can resolve minor glitches. Should these steps not yield results, you may need to delve deeper, which could involve removing the door panel to inspect and potentially replace the window motor or repair any damaged wiring. By following this structured approach, you can efficiently identify and resolve window issues, ensuring your AMG GT S operates smoothly.

What to Check When the Window Won't Go Up or Down in a Mercedes-Benz AMG GT S?

When faced with a window that won't go up or down in your Mercedes-Benz AMG GT S, it's essential to understand the common problems that could be at play. One frequent issue is a faulty window regulator, which can wear out over time due to the friction involved in its operation. If you hear grinding noises when attempting to move the window, this could indicate a problem with the motor or the regulator itself. Additionally, electrical issues such as damaged wiring or a malfunctioning switch can prevent the window from functioning properly. It's also worth noting that if the window moves slowly or only partially, recalibrating the window sensor may be necessary, especially after battery disconnection. By checking these common failure modes, you can effectively troubleshoot the problem and take the necessary steps to restore your window's functionality.

How to Fix a Non-Functioning Window in a Mercedes-Benz AMG GT S?

When dealing with a non-functioning window in your Mercedes-Benz AMG GT S, it's essential to address the issue promptly to avoid potential safety risks and further damage to your vehicle. Ignoring symptoms such as a window that only moves partially, makes grinding noises, or fails to respond altogether can lead to more complex problems, including electrical failures or damage to the window mechanism. Start by checking the window switch and fuses, as these are the simplest components to inspect. If they are functioning correctly, you may need to delve deeper into the window motor and regulator. Symptoms like slow movement or inconsistent operation can indicate a failing window regulator or motor, which, if left unchecked, could lead to costly repairs. Additionally, if you experience issues with the window going down but not up, or vice versa, it’s crucial to recalibrate the window system to restore proper functionality. By taking the time to accurately diagnose the problem and addressing it urgently, you can ensure the safety and reliability of your vehicle while preventing further complications.

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