SL-Class (R232) Discussion on the 2022 R232

SL/R232: EZ Pass Transponder

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Old Aug 27, 2025 | 11:44 AM
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2023 S580, 2025 GLE450, 2025 AMG SL43
EZ Pass Transponder

Does anyone have advice on where to place the toll transponder on the windshield on a '25 SL so that it doesn't interfere with anything. I do not have the integrated toll system which I had on my S class which was great ! Thanks
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Old Aug 27, 2025 | 01:35 PM
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It's the same as in all other models. If you have a normal windshield without metallic coating for heat insulation, then you can put it anywhere. I've always put my toll transponders up high to the right of the rear view mirror. If you have a coated windshield, then there are two areas w/o coating. One is up top to the right of the rear view mirror where I have my toll transponder, and the other one is in the bottom left corner on the driver side. They are indicated in the owner's manual and you can see them if you look through the windshield with the right angle.
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Old Sep 17, 2025 | 08:36 AM
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I mounted mine, passenger side top left corner (closest to review mirror) on the windshield. No issues, tolls have successfully charged. No interference.
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Old Sep 18, 2025 | 12:08 PM
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Thanks for the feedback.

Originally Posted by lexnoir
I mounted mine, passenger side top left corner (closest to review mirror) on the windshield. No issues, tolls have successfully charged. No interference.
There are 2 wires imbedded in the windshield that run right up to the mirror which is why I’m asking. Don’t know if the ‘25 model is different from yours.
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Old Sep 18, 2025 | 12:53 PM
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2022 SL 55 AMG, 2020 AMG GT 53, 2015 GL 550
Originally Posted by jrwest
There are 2 wires imbedded in the windshield that run right up to the mirror which is why I’m asking. Don’t know if the ‘25 model is different from yours.
I have a 22 but I see a number of wires running through the windshield. Including at the top, but it hasn't impacted anything. So far, so good.
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