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Hi, got issues that I am hoping with help I can resolve. Lots of issues to be honest and pretty much all come from the Command unit. No sound. Can anyone point me to threads/posts relevant. I cant find any. Main issue, where is the amplifier?? as mine isn't where it says it should be. Hoping its just that, that's failed. But cant find it.
Thanks
Steve
Last edited by Steve Lycett; 01-03-2020 at 02:08 PM.
I'm not sure where the amp is in the SL350, but in a US SL500 or SL550, the Amp is right below the rear storage box that holds the CD changer. If you search, you should be able to find disassembly instructions.
The error message translates to "system not ready." I imagine there are one or more diagnostic codes stored in the COMAND unit. There is a way to retrieve them with some sequence of buttons, but I do not know what that is.
It may take you a while, but if you search MBWorld and Benzworld you should be able to find where someone has posted the sequence.
Hi, amplifier (A2/13) is definitely not in that location. Ive removed the box, cd player and the Audio gateway control unit N93/1) No amp or loose wires to be seen. Ive disconnected the batteries over night. Not resolved anything.
2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
Is it an NTG-1 unit?
I wonder if your amp is out there at all... have you had the system working? If you post your VIN, someone might check WIS for you to find the location of your audio components.
Ive got 2 downloaded/purchased manuals for the r230, 2003-2007 and 2007-2011. neither quite look right when I search components etc. The North America, Japanese models etc confuses me. Maybe neither are for my UK version?? Anyway, VIN is WDB2304672F105530.
Do the speakers in the door have the BOSE or Harman_Kardon badges on them?
Based on your VIN, your car does NOT have the premium sound option. If your car had the BOSE Amp, it would show Code 259 when the VIN is decoded. If you had the HK Logic 7, it would have Code 810
In this case, your AGW built in amp drives the speakers.
Not noticed anything on the speakers so sounds right. No amp. Wouldn't believe how long ive been looking for what isn't there. So, working out whats failed now then Audio gateway replaced. Can I simply run one (pair) fibre optic cable from the head unit to the AGW. And remove the dozen bits of junk in the boot? Read it could simply be a fibre optic that's broke. And thanks for confirming the amp!!! lol
Well. spent all day on it. Fixed it. Took everything out and added it all back one component at a time. Ive got the head unit, agw and hands free/Bluetooth working. The dvd rom and the multichanger were the issues. Power to them but both dead. Put some Fibre optic loops on in place of them. System working lovely. Not looking for the amp anymore was the breakthrough. Thankyou for that.
My drivers side rear window has now packed up. So back at it again tomorrow. Do they have individual fuses?? cant see anything to suggest they do but surely they have? Cant get the roof down till that's working.
Can I just add ive been to 2 auto electricians a cost of £200 and both said the radio system cant be fixed. Needed ripping out. One quoted £1600... Glad I kept trying now.
Well. spent all day on it. Fixed it. Took everything out and added it all back one component at a time. Ive got the head unit, agw and hands free/Bluetooth working. The dvd rom and the multichanger were the issues. Power to them but both dead. Put some Fibre optic loops on in place of them. System working lovely. Not looking for the amp anymore was the breakthrough. Thankyou for that.
My drivers side rear window has now packed up. So back at it again tomorrow. Do they have individual fuses?? cant see anything to suggest they do but surely they have? Cant get the roof down till that's working.
Can I just add ive been to 2 auto electricians a cost of £200 and both said the radio system cant be fixed. Needed ripping out. One quoted £1600... Glad I kept trying now.
A few questions:
The DVD ROM and muti-changer. What exactly wasn't working? The DVD-ROM is inside the Comand unit. Was that not working? How did you loop it out? The Comand only has 1 Optical I/O cable. There shouldn't be a separate one for the optical drive. The CD_Changer I can see, if there's a problem with it, it can be looped out. The other Optical drive, in the trunk (boot), also a DVD-ROM is the navigation system. Is that what you looped out?
As for the side rear window, I assume you're referring to the quarter window. Put the left window down, the put it back up. Once the main/door window is up, pull the switch up again, through the click and hold. Your quarter window should come up. If it doesn't, then it's possible you may have inadvertently disconnected or shorted a wire or two when you were working in the area of the AGW.
Hi, yes the nav dvd in the boot is the one I looped. Again, power going to the drive and fibre optic was fine but the drive just didn't work. Will try the window. Doesn't do anything t present...
Hi, yes the nav dvd in the boot is the one I looped. Again, power going to the drive and fibre optic was fine but the drive just didn't work.
Damn, you just about emasculated that whole system.
You might be better off replacing the Comand HU with a aftermarket one. I did on mine, and everything on my car was working fine at that time, but I wanted a modern radio with all the features one would expect out of a modern automotive entertainment system
The dodgy window is the opposite side. drivers side. Could I have still affected that somehow?
Don't know, You'll just have to try it, and if doesn't work, start troubleshooting
2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
The left rear window is protected by a white 25A fuse in the fond box on the right (similar to the box on the left that holds the AGW and CD changer). The fuses and more are ‘hidden’ under its deceiving bottom panel. Two clips at the rear and it comes out (though not when you’re agitated, so go zen).
Last edited by Frederick NL; 01-05-2020 at 07:46 AM.
Removed a number of fuses and put them back in. All appeared fine. Window now working. Thankyou. Wondering if I disturbed a fuse while messing with the radio component fuses. Roof now down, radio working. Just need summer back lol.
Just one more issue to resolve. Not a priority but a baffling one. Car will not exceed 100MPH. Gets there quick as expected when I floor it but just holds dead on 100. In the past Ive been told to check cruise control settings etc. That's maxed to 100MPH but cant see how that can impact on the speed when not activated. Law catching me above 100 is a ban, so not a bad thing. But is it a fault somewhere?
Service reminder has been up for a while, booked in for Weds. Could that be holding it back? Cant see it but the car is far more clever than me.
2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
The car has two speed limiters (speedtronic), one is 'permanent' and the other is variable. Both are set with the cruise control lever. You're right, some things about the car are just too clever. The following explanation probably has one or more glitches.
(De)activate the variable one by pressing the lever (press in the head, that is) while driving. When activated, a LED in the lever lights up. Limits are set by moving the lever up (select) and down (store).
Sounds to me like your permanent limit is set, which should be indicated by the LED in the lever. Switch it off, while standing still, in the ever confusing dash menu, with your steering wheel buttons: (top left button) settings - (arrow buttons) sub menus - (+/- buttons) vehicle - (arrow buttons) speed limit. From there, on or off should be no problem. It seems that an acting active permanent speed limiter can be overrun by kickdown.
There's more ways to (de)activate the speed limiters, but that just add to confusion, my own head tells me. The lever can be moved up/down/fw/bw and be pressed in.
Last edited by Frederick NL; 01-05-2020 at 08:30 AM.
Is this something unique to the SL350, because I've never seen these functions on my SL500 or my SL550.
My cruise control switch has NO LED (that I can see), and it only has 4 possible positions: UP, sets the cruise speed to current, and after, it set increase the limit by 1MPH, or 5MPH (if pushed all the way up), DOWN, reduce the speed by 1MPH or 5MPH, FORWARD cancels cruise, BACKWARD, resume cruise. There is no "push in" or LED.
Is this something unique to the SL350, because I've never seen these functions on my SL500 or my SL550.
My cruise control switch has NO LED (that I can see), and it only has 4 possible positions: UP, sets the cruise speed to current, and after, it set increase the limit by 1MPH, or 5MPH (if pushed all the way up), DOWN, reduce the speed by 1MPH or 5MPH, FORWARD cancels cruise, BACKWARD, resume cruise. There is no "push in" or LED.
In the USA, we don't get the speed limiter function, but other countries do. Our DOT believes that such a device could cause prevent avoiding an accident should you have the limiter set low and need to suddenly accelerate.
2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
Sorry for the confusion, American friends, I had no clue that our toy box has some tricks that yours sourly lacks... Here (photo) it is in all its glory. MB could have argued that kick down overrides the limiter. But I have to admit that the sudden speed barrier can be a bit of a nuisance and a surprise.
01-03-2020, 01:34 PM
