2018 Mercedes-Benz GLE350 Window Won't Go Up Or Down

Common Causes of Window Malfunctions in Your 2018 Mercedes-Benz GLE350 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 2018 Mercedes-Benz GLE350 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 2018 Mercedes-Benz GLE350 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.

What are the steps to diagnose a non-functioning window in a 2018 Mercedes-Benz GLE350?

To effectively diagnose a non-functioning window in a 2018 Mercedes-Benz GLE350, start with the simplest solutions before progressing to more complex issues. Begin by checking the window switch, as a malfunctioning switch can often be the culprit. Test both the driver's control panel and the individual door switch to ensure they are operational. Next, inspect the fuse box for any blown fuses related to the window system; replacing a blown fuse can sometimes resolve the issue quickly. If the switch and fuses are functioning, listen for any sounds from the window motor when you press the switch. If you hear the motor running but the window remains stationary, this may indicate a problem with the window regulator or motor itself. Examine the window regulator for signs of damage, as a faulty regulator can prevent the window from moving. Additionally, check the wiring connected to the motor and regulator for any signs of wear or loose connections, as these can also hinder window operation. If these steps do not resolve the issue, it may be necessary to consult a professional mechanic or an authorized Mercedes-Benz service center for a more thorough diagnosis and repair. By following this structured approach, you can efficiently identify and address the problem with your vehicle's window.

What are the common problems that could cause the window of a 2018 Mercedes-Benz GLE350 to stop working?

When facing issues with the window of a 2018 Mercedes-Benz GLE350, it's essential to understand the common problems that could be at play. One frequent culprit is a faulty window regulator, which can hinder the window's ability to move up or down. Additionally, a defective window motor may prevent the window from responding to commands, leaving it stuck in place. Electrical issues, such as blown fuses or damaged wiring, can also disrupt the window's operation, making it crucial to check the vehicle's electrical system. Another potential issue is a malfunctioning window switch, which may fail to send the necessary signals to operate the window. If the window has come off its track, it can become stuck, requiring realignment to restore functionality. Lastly, any damage to the window glass itself, such as cracks or chips, can impede movement and should be inspected. By identifying these common problems, DIYers can take the first steps toward diagnosing and potentially resolving window issues in their GLE350.

How urgent is it to fix the non-operational window in my 2018 Mercedes-Benz GLE350?

Addressing a non-operational window in your 2018 Mercedes-Benz GLE350 is an urgent matter that should not be overlooked. The safety implications are significant; a malfunctioning window can obstruct your view, increasing the likelihood of accidents on the road. Moreover, an open or improperly functioning window leaves your vehicle vulnerable to harsh weather conditions, which can lead to costly interior damage from rain or snow, not to mention an uncomfortable ride for passengers. Security is another critical factor; a window that won’t close properly makes your car an easy target for theft or vandalism, putting your belongings at risk. Additionally, if you plan to sell your vehicle in the future, a non-operational window can detract from its resale value, as potential buyers may be put off by visible defects. Therefore, it is essential to address this issue promptly to ensure your safety, protect your investment, and maintain the overall condition of your vehicle.

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2018 Mercedes-Benz GLE350 Window Issues & Repair Costs