Cannot set tailgate height to the desired position
Thread Starter
Member
Joined: Oct 2019
Posts: 249
Likes: 28
From: ON
2020 GLC 300 4Matic OffRoad
Cannot set tailgate height to the desired position
On 2020 GLC 300, I followed the manual to set the opening angel of the tailgate. But the opening height is much lower than what I set.
I need the tailgate opens lower because it would hit the garage door when fully opened. I would like to set it lower but taller than me so that would not hit my head. (I am 5'8'' tall)
For example, when set it to 25cm lower than it's end position (when it's fully open), it would open to about 40cm lower than it's end position, and that is too low.
Does anyone observe the same issue? Or it is an issue on my GLC? Appreciate any suggestions.
Here is from the manual of 2020 GLC:
I need the tailgate opens lower because it would hit the garage door when fully opened. I would like to set it lower but taller than me so that would not hit my head. (I am 5'8'' tall)
For example, when set it to 25cm lower than it's end position (when it's fully open), it would open to about 40cm lower than it's end position, and that is too low.
Does anyone observe the same issue? Or it is an issue on my GLC? Appreciate any suggestions.
Here is from the manual of 2020 GLC:
Activating the opening angle limiter
You can limit the opening angle of the tailgate in the top half of its opening range to approximately 8 in (20 cm) before the end position.
# Stop the opening procedure of the tailgate at the desired position.
# Press and hold the closing button on the tailgate until you hear a short acoustic signal. The opening angle limiter will be activated. The tailgate will then stop in the stored position when opened.
You can limit the opening angle of the tailgate in the top half of its opening range to approximately 8 in (20 cm) before the end position.
# Stop the opening procedure of the tailgate at the desired position.
# Press and hold the closing button on the tailgate until you hear a short acoustic signal. The opening angle limiter will be activated. The tailgate will then stop in the stored position when opened.
Last edited by abacnus; Oct 3, 2019 at 04:44 PM.
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From: Sarasota, Florida
2023 E450 Cabriolet, 2019 F150 Platinum, 2014 Dodge Challenger R/T
Just tried this on my gle63 and it works as described... not exactly the same vehicle...
Those directions come from your user manual ?
Those directions come from your user manual ?
Thread Starter
Member
Joined: Oct 2019
Posts: 249
Likes: 28
From: ON
2020 GLC 300 4Matic OffRoad
Activating You can limit the opening angle of the tailgate. This is possible in the top half of its opening range, up to approximately 4 in (10 cm) before the stop. This could be useful, for example, if there is insufficient space above the tailgate.
- To open the tailgate: pull the handle on the tailgate.
- To stop the opening procedure at the desired position: press the closing button (Y page 98) in the tailgate or pull the handle on the outside of the tailgate again.
- To store the position: press and hold the closing button in the tailgate until you hear a short tone. The opening angle limiter is activated. The tailgate will now
- To open the tailgate: pull the handle on the tailgate.
- To stop the opening procedure at the desired position: press the closing button (Y page 98) in the tailgate or pull the handle on the outside of the tailgate again.
- To store the position: press and hold the closing button in the tailgate until you hear a short tone. The opening angle limiter is activated. The tailgate will now
Thread Starter
Member
Joined: Oct 2019
Posts: 249
Likes: 28
From: ON
2020 GLC 300 4Matic OffRoad
Also, I found a situation that the tailgate will open even higher than its normal full open height intermittently. Most likely, it is the first open after turn off the car. Like:
1 open garage door, 2 park into garage 3 turn off the car 4 open the tailgate. At this point, if the tailgate has not been open for a while like for a day, it would open higher than normal. As a result, it would hit the garage door.
I think this is an annoying issue, at least here in Canada. My garage door and height is pretty common.
1 open garage door, 2 park into garage 3 turn off the car 4 open the tailgate. At this point, if the tailgate has not been open for a while like for a day, it would open higher than normal. As a result, it would hit the garage door.
I think this is an annoying issue, at least here in Canada. My garage door and height is pretty common.
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Joined: Apr 2020
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From: Finland
MB EQA 250
I just created a short 2 mins video how to limit electric tailgate height.
Hope this helps everyone to avoid smashing ceiling.
This works for many Mercedes models with electric tailgate.
Hope this helps everyone to avoid smashing ceiling.
This works for many Mercedes models with electric tailgate.
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From: Colorado
'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
I set my preferred height by just manually forcing the tailgate to the position I want, then long press the button. I don't have to quickly interrupt its action to set the height, and can be more precise,
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Looks like you dont really need to clear the memory (2 beep) and still able to set and save custom height then?
I have a few times that the tailgate open to the max height even though I have set and save my height. And one time the tailgate not open all the way to the set height and I hit my head on it. I need to reset the height again. Any idea what is wrong? Does it have anything to do with the car battery or 12v battery?
I have a few times that the tailgate open to the max height even though I have set and save my height. And one time the tailgate not open all the way to the set height and I hit my head on it. I need to reset the height again. Any idea what is wrong? Does it have anything to do with the car battery or 12v battery?
Last edited by dadalook; Nov 30, 2025 at 08:36 AM.
Junior Member
Joined: Apr 2007
Posts: 61
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From: New Hampshire
'04 C320 4matic Wagon (sold),'15 E350 4Matic(sold),'14 E550 convertible,'20 GLC300
Looks like you dont really need to clear the memory (2 beep) and still able to set and save custom height then?
I have a few times that the tailgate open to the max height even though I have set and save my height. And one time the tailgate not open all the way to the set height and I hit my head on it. I need to reset the height again. Any idea what is wrong? Does it have anything to do with the car battery or 12v battery?
I have a few times that the tailgate open to the max height even though I have set and save my height. And one time the tailgate not open all the way to the set height and I hit my head on it. I need to reset the height again. Any idea what is wrong? Does it have anything to do with the car battery or 12v battery?
MBWorld Fanatic!
Joined: Oct 2009
Posts: 6,987
Likes: 2,187
From: Colorado
'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
To position it where you want it, you can either momentarily press that button until it "lands" in the correct position, which is unlikely because of overshoot.
Or just muscle it into position and then press/hold until the beep.
It's easier to find the perfect spot with the Muscle technique.
Last edited by mikapen; Mar 15, 2026 at 04:17 PM.
Junior Member
Joined: Apr 2007
Posts: 61
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From: New Hampshire
'04 C320 4matic Wagon (sold),'15 E350 4Matic(sold),'14 E550 convertible,'20 GLC300
I tried the muscle technique and every other technique described here and on the internet. Tried clearing the set point reprograming it. The tail gate stubbornly opens to the wrong set point, either half way or all the way open. There must be something wrong my car.
