SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: Distronic retrofit on MY2005 help!

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Old 10-19-2020, 06:00 AM
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Mercedes SL (R230)
Thanks everyone, will try to track down this cable! A2305407405

And Andreas - can confirm the Star badge was a $%!£ to install
Old 10-19-2020, 02:58 PM
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OK, so now I am told by Mercedes (UK) that this cable is unavailable! Not for order and no alternative!

Wow. Not sure what to do now...
Old 10-20-2020, 02:46 AM
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Ask an other dealer.
https://originalteile.mercedes-benz....05407405-82108
Old 10-26-2020, 04:44 AM
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Thanks Andreas - unfortunately they do not ship to the UK
Old 10-28-2020, 08:48 AM
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I've had a thought - is the reason I cannot find the cable on eBay because breakers are selling it as part of the engine loom? There are none of the other (non-compatible Distronic looms at all, even from other cars). Is it all taped up with it?

Could I then just buy the correct loom second hand and dismantle?

Also, why would the one I need be described as 'repair kit'? Seems odd given the others are not...

Thanks,
Gareth

Last edited by Eman Puedam; 10-28-2020 at 08:51 AM.
Old 10-28-2020, 01:55 PM
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2007 SL65, 2009 SL550, 1991 SL500
Originally Posted by Eman Puedam
I've had a thought - is the reason I cannot find the cable on eBay because breakers are selling it as part of the engine loom? There are none of the other (non-compatible Distronic looms at all, even from other cars). Is it all taped up with it?

Could I then just buy the correct loom second hand and dismantle?

Also, why would the one I need be described as 'repair kit'? Seems odd given the others are not...

Thanks,
Gareth
can you locate in the US? You could have it shipped to me and I could forward to you in Uk Just a thought to help out.
Old 10-28-2020, 02:18 PM
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Originally Posted by NHSl550
can you locate in the US? You could have it shipped to me and I could forward to you in Uk Just a thought to help out.
Thanks, this is very kind. I will have a search!
Old 10-28-2020, 02:54 PM
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Andreas - I have another question. Can you (or anyone else!) tell me what plugs in here? I cannot see this plug on your cable and the shot of your cable looks almost the same as mine. I'm wandering if I can get mine altered (if it needs much altering!) but I still do not know what goes in the other socket!


  • The six pin plug is the same (although mine only has four wires) - 1(red), 2(-), 3(-), 4(green/white), 5(green), 6(brown)
  • The two pin white has green and green/white going to the car
  • The earth hoop is there
  • This the blue fuse has red going to it.



I don't know the difference between these cables - could it be the black two-pin on yours is different to the white two-pin on mine? Could it be this simple?

Thanks,
Gareth
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Old 10-28-2020, 05:10 PM
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The red marked thing is no plug, it is nothing, maybe something what the very first modells needed. The six pin plug is is equipped with four wires only. It looks like your cable is right, do you know the part number? If you lift the carpet on the left side (dont know which side at RHD cars) you will find two can distributor. One with brown and one with green cables. It has to plug at the "green" distributor. And yes, it looks like it could and is this simple.
Old 10-28-2020, 06:55 PM
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This looks great news, MB possibly just changed the CAN connector for some reason.

The cable I bought was A230 540 2110 from the following year. I'll see if I can get this working and update the thread with the results.

Thanks,
Gareth
Old 12-24-2020, 06:32 PM
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SL500-R230
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Last edited by m60kaf; 05-27-2021 at 05:57 PM.
Old 12-25-2020, 10:59 AM
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It is important that the sensor is aligned as precisely as possible. Otherwise, it will align the radar with a car in a different lane.

Stand the car 5 to 10 meters (feet, gallons, what ever) in front of a wall. The further away, the more accurate.

Measure the height of the center of the sensor in the car. Transfer the height to the wall. If you want more precision, use a transparent hose filled with water like a spirit level.

Attach a laser pointer to a straight board. Place the board on the left wheel opening. Point to the wall in the high of the first mark and set a second mark.

Turn the board 180 degrees and place it on the right wheel opening. Point to the wall in the high of the first mark and set a third mark

The error is compensated by the turning. This means that the center of the sensor is exactly in the middle of the two markings two and three.

Now you know the height and center of the sensor from the car on the far wall. At this point on the wall you attach the laser pointer and point the beam at the center of the radar sensor.

Then you place a small mirror on the surface of the radar sensor. The laser beam is directed back to the laser pointer.

Now you calibrate the radar sensor with the screws until the beam is directed back exactly to the laser pointer. The result is more accurate than factory calibration.

Last edited by AndreasHannover; 12-25-2020 at 11:02 AM.
Old 05-09-2021, 09:36 PM
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SL500-R230
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Last edited by m60kaf; 05-27-2021 at 05:57 PM.
Old 05-10-2021, 10:35 AM
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Should be this one: A2308880186
Old 05-10-2021, 10:45 AM
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SL500-R230
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Last edited by m60kaf; 05-27-2021 at 05:59 PM.
Old 05-13-2021, 04:44 PM
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Last edited by m60kaf; 05-27-2021 at 05:57 PM.
Old 05-13-2021, 08:28 PM
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'03 SL55 Black, '03 SL500's Aegean, Mars Red, Tazanite, Alabaster, '11 S550 Flint Gray
WIS says 1) red/brown power feed from K40/4 f45 (black/blue on later models) 4) green/white CAN C High 5) green CAN C Low 6) brown ground to W3/1 right front wheelhouse ground
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Old 05-14-2021, 09:43 AM
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If i stare long enough at my picture i would say: Pin 1 is brown.
Old 05-14-2021, 10:32 AM
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Last edited by m60kaf; 05-27-2021 at 05:56 PM.
Old 05-16-2021, 11:37 AM
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Pin 6 is 0 ohm to ground of radars is a short circuit, not electricaly isolated from the body.
Old 05-16-2021, 12:10 PM
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Last edited by m60kaf; 05-27-2021 at 05:56 PM.
Old 05-16-2021, 01:21 PM
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I do not see the problem. If the radar housing is connected to pin 6 and pin 6 to ground via the brown wire, then the radar housing is connected to ground via it, right?

I didn't check the wires on the original cable.
Old 05-16-2021, 01:46 PM
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Last edited by m60kaf; 05-27-2021 at 05:56 PM.
Old 05-23-2021, 07:21 AM
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Last edited by m60kaf; 05-27-2021 at 05:56 PM. Reason: changed error that set to close with no switches - actually far
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Old 05-23-2021, 07:53 AM
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'03 SL55 Black, '03 SL500's Aegean, Mars Red, Tazanite, Alabaster, '11 S550 Flint Gray
My '11 S550 has Distronic Plus and it is great. I have been curious how well the earlier systems compared. Does it brake at all, or is it just throttle control?


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