SL-Class (R231) 2013 on: Discussion on the SL550

SL/R231: Several dumb questions and observations, all in one convenient place!

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Old Aug 30, 2025 | 03:31 PM
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Several dumb questions and observations, all in one convenient place!

1. Does anyone else think the side mirrors should have been mounted farther forward??

2. Do the side mirrors still get warm when the rear window defroster is on? My first DIY repair on the forum was replacing the heated side mirror on my 2000 C280 Sport.
3. When the lane correction feature is enabled, slowing me down and steering me back into the lane, do my brake lights come on? How about when Distronic slows me down?
4. Is there a rollbar-like protection mechanism installed in our headrests (or elsewhere)?

Last edited by eddieo45; Aug 30, 2025 at 03:33 PM.
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Old Aug 30, 2025 | 04:20 PM
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This thread has pictures of the rollover protection deployed. Although I love the R231, I do miss the obvious big roll bar of the R230.

https://mbworld.org/forums/sl-class-...bar-works.html

I believe the side mirrors are heated. You can see the heating wires in the windshield, so I'd assume MB did the side mirrors too.
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Old Aug 31, 2025 | 09:59 AM
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Side mirror location looks about right for a right hand drive car.
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Old Aug 31, 2025 | 10:11 AM
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Originally Posted by eddieo45
1. Does anyone else think the side mirrors should have been mounted farther forward??
I suppose so, if the driver is a manlet and has to have the seat all the way forward...?


3. When the lane correction feature is enabled, slowing me down and steering me back into the lane, do my brake lights come on? How about when Distronic slows me down?
Depends on the severity of the deceleration. If it's just engine braking, most likely not. If brakes are applied by the system, then yes, the brake lights will actuate.
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Old Sep 1, 2025 | 08:24 AM
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Originally Posted by eddieo45
...3. When the lane correction feature is enabled, slowing me down and steering me back into the lane, do my brake lights come on? How about when Distronic slows me down?
Good question. I wonder the same thing. I guess you could have someone follow you and be on the phone or use one of those walkie-talkie things and tell you when the brake lights come on. I would think that if you are suddenly slowing down, or if going downhill, they would come on as if you were applying the brakes manually.
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Old Sep 1, 2025 | 07:21 PM
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Yes and yes. The break lights are activated whenever the car breaks.

Originally Posted by JettaRed
Good question. I wonder the same thing. I guess you could have someone follow you and be on the phone or use one of those walkie-talkie things and tell you when the brake lights come on. I would think that if you are suddenly slowing down, or if going downhill, they would come on as if you were applying the brakes manually.
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Old Sep 1, 2025 | 07:27 PM
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Originally Posted by ThatsMyDawg
Yes and yes. The break lights are activated whenever the car breaks.
Are those the lights that tell you something is broken?
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Old Sep 1, 2025 | 08:26 PM
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No. lol. The rear break lights light up and indicates that our cars are applying the breaks. This happens when our cars are correcting themselves during lane assist, or when the car is in cruise control and shows down on its own. Another vehicle that is behind us will see our break lights lighting up and know that we ( our car) is breaking, but they will think we (the humans) are doing the breaking when it’s actually our cars doing the breaking for us.


Originally Posted by Sathinas
Are those the lights that tell you something is broken?
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Old Sep 1, 2025 | 08:27 PM
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Originally Posted by Sathinas
Are those the lights that tell you something is broken?
If your brakes break, and you can’t slow down, the rest of your car breaks, when it hits something, and your brakes won’t save you.
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Old Sep 1, 2025 | 08:56 PM
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If I were younger I might care about a typo, but being older and working with this tiny phone screen I don’t care much. If some didn’t understand then I will just focus on the ones that did.

Originally Posted by MB2timer
If your brakes break, and you can’t slow down, the rest of your car breaks, when it hits something, and your brakes won’t save you.
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Old Sep 2, 2025 | 12:04 PM
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Originally Posted by ThatsMyDawg
If I were younger I might care about a typo, but being older and working with this tiny phone screen I don’t care much. If some didn’t understand then I will just focus on the ones that did.
No offense intended, or taken. I quoted Sathinas, and replied to his post.
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Old Sep 2, 2025 | 12:14 PM
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Same here.


Originally Posted by MB2timer
No offense intended, or taken. I quoted Sathinas, and replied to his post.
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Old Sep 4, 2025 | 09:04 AM
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Originally Posted by eddieo45
1. Does anyone else think the side mirrors should have been mounted farther forward??
Originally Posted by Sathinas
I suppose so, if the driver is a manlet and has to have the seat all the way forward...?
What a dick! Glad to see him banned, and after 15 years here.

I've been driving for 50 years, and I'm more inclined to put the seat all the way back. I remember back in the 70s when you'd pull a trailer with a pickup, there were temporary mirrors you'd mount on the front fenders. Japanese cars had their side mirrors fender-mounted in Japan, but door-mounted in the US. It's plainly evident that the farther forward the side mirror is mounted the larger the field of vision will be, and, more to the point, there are no shortage of examples of Mercedes models that have the side mirrors mounted as far forward on the doors as possible:





Originally Posted by BMBLBEE
Side mirror location looks about right for a right hand drive car.
Is that a joke? It's clearly LHD....

Last edited by eddieo45; Sep 4, 2025 at 09:07 AM.
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Old Sep 4, 2025 | 09:09 AM
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Originally Posted by ThatsMyDawg
Yes and yes. The break lights are activated whenever the car breaks.
I'll try not to loose my mind over you're use of break to describe brakes, lol.....
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Old Sep 4, 2025 | 09:53 AM
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Thank you. The RX has dramatically hurt my vision and it is still hard for me to catch things. I’m trying lol.

Originally Posted by eddieo45
I'll try not to loose my mind over you're use of break to describe brakes, lol.....
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Old Sep 6, 2025 | 05:16 PM
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Originally Posted by eddieo45
What a dick! Glad to see him banned, and after 15 years here.

I've been driving for 50 years, and I'm more inclined to put the seat all the way back. I remember back in the 70s when you'd pull a trailer with a pickup, there were temporary mirrors you'd mount on the front fenders. Japanese cars had their side mirrors fender-mounted in Japan, but door-mounted in the US. It's plainly evident that the farther forward the side mirror is mounted the larger the field of vision will be, and, more to the point, there are no shortage of examples of Mercedes models that have the side mirrors mounted as far forward on the doors as possible:
.
My problem with having the mirrors fender mounted is that I can't see that far.
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