Electrical module
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2007 Mercedes 550S 2006 Porsche 997 Carrera S
Electrical module
Found out from the dealer this morning that my S550 need a special module. This module controls the inner electronics, such as the display clock, the controls to the left side of the COMAND screen and the night vision. Big question…… does anyone know the number of this part? Greatly appreciated?
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Found out from the dealer this morning that my S550 need a special module. This module controls the inner electronics, such as the display clock, the controls to the left side of the COMAND screen and the night vision. Big question…… does anyone know the number of this part? Greatly appreciated?
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2007 Mercedes 550S 2006 Porsche 997 Carrera S
Well, they told me that it's $1100.00 installed. I didn't ask the part number. A local indy mechanic said that it sounds like BS..... he had never heard of a module that controls these particular electrics, and that it is probably a fuse issue. If I ask the dealer for the part number, it could get ugly. then they would know that I have no intention of letting them fix the car.
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Well, they told me that it's $1100.00 installed. I didn't ask the part number. A local indy mechanic said that it sounds like BS..... he had never heard of a module that controls these particular electrics, and that it is probably a fuse issue. If I ask the dealer for the part number, it could get ugly. then they would know that I have no intention of letting them fix the car.
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2007 Mercedes 550S 2006 Porsche 997 Carrera S
With your expertise with these cars, have you ever heard of a module that run the controls to the left of the display screen, and the clock synchronization? Personally, (and admittedly this is my first MB) it sounds like it could be more of a fuse issue.
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Not specifically, but the car has microprocessor control units all over the place. The steering column alone has three that I know of. The good news is all those processors will let you know their status via an MB diagnostic terminal. I'm guessing the dealer's service department hooked your car up and the module reported a fault.
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2007 Mercedes 550S 2006 Porsche 997 Carrera S
Not specifically, but the car has microprocessor control units all over the place. The steering column alone has three that I know of. The good news is all those processors will let you know their status via an MB diagnostic terminal. I'm guessing the dealer's service department hooked your car up and the module reported a fault.
Terrific, thank you for the insight. Final question..... is the MB Diagnostic terminal exclusive to dealers only? Or would you find quality indy shops with them?
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Indy would have to have one to service anything 2000 and up. We need Konigster on here. He knows all this stuff.
Last edited by Mike5215; 11-17-2015 at 09:39 PM.
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2007 Mercedes 550S 2006 Porsche 997 Carrera S
Yes, they Service Manager wrote down 221 905 5200. This seems to be the code for the center climate control, and I can't see how it could be related to the issues that the car is having. I am tempted at this stage to take the car to another dealer that has a very low mile 2010, and trade in the 2007 that I just bought. Even though my existing 2007 has low miles, and all the work has been done at authorized dealers in the past, I think I'm off to a rocky start. If I picked up the 2010 it would have a full warranty, not just the 3 month powertrain warranty that came with the 07. Also, I would take a lose on the trade in.... Besides the exterior cosmetic differences, (Lights, etc.) are there any other significant differences between the years? (07 vs.10) Thanks again for the input.
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2011 Mercedes S63 AMG
I'm having some trouble too. My radio, cd, card reader, etc is saying "Device not found". I'm also not getting audio through GPS or Bluetooth. I took it to an indy and he said "Tuner Amp". He cost me $250. I didn't believe him because he had trouble explaining the issue to me so I took it to Benz. They said its the amp in the trunk, cost me $139. I bought the amp for the trunk and had another indy install it, cost me $450. After all that I am still having the same issue. I now have to take it back to benz for them to deal with it. FML, this is going on for over a month now. I bought the amp off EBay because the dealer wants $2500 for a new one. I got the one off EBay for $1200. I'm hoping they can finally solve the issue. After I may just unload my car and go with something else.
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2007 Mercedes 550S 2006 Porsche 997 Carrera S
The car is currently at the mechanics getting fixed. The piece that I did buy was the black plastic control panel to the left of the display screen. Hopefully that’ll fix the multitude of electrical problems.
Somehow, I don’t think it’ll fix the Nite Vision, and clock issue…… but maybe I’ll be in for a pleasant surprise.
Somehow, I don’t think it’ll fix the Nite Vision, and clock issue…… but maybe I’ll be in for a pleasant surprise.
#17
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I'm having some trouble too. My radio, cd, card reader, etc is saying "Device not found". I'm also not getting audio through GPS or Bluetooth. I took it to an indy and he said "Tuner Amp". He cost me $250. I didn't believe him because he had trouble explaining the issue to me so I took it to Benz. They said its the amp in the trunk, cost me $139. I bought the amp for the trunk and had another indy install it, cost me $450. After all that I am still having the same issue. I now have to take it back to benz for them to deal with it. FML, this is going on for over a month now. I bought the amp off EBay because the dealer wants $2500 for a new one. I got the one off EBay for $1200. I'm hoping they can finally solve the issue. After I may just unload my car and go with something else.
If one device fails, it will cause a cascade of failures in the other devices because the ring is no longer closed. If it's a device you don't use anyway, like Sirius radio for example, you can just bypass it entirely and close the loop.
I would start with a visit to a shop with an MB diagnostic terminal. The car will report which device has failed, then you can decide how best to proceed. It may be the amp but any device in the loop that fails...or blows a fuse...will cause the "device unavailable" error.
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2007 Mercedes 550S 2006 Porsche 997 Carrera S
All the toys are on a fiber optic ring. Each device, even if it's not in use, is responsible for passing the signal on to the next device, forming a closed loop.
If one device fails, it will cause a cascade of failures in the other devices because the ring is no longer closed. If it's a device you don't use anyway, like Sirius radio for example, you can just bypass it entirely and close the loop.
I would start with a visit to a shop with an MB diagnostic terminal. The car will report which device has failed, then you can decide how best to proceed. It may be the amp but any device in the loop that fails...or blows a fuse...will cause the "device unavailable" error.
If one device fails, it will cause a cascade of failures in the other devices because the ring is no longer closed. If it's a device you don't use anyway, like Sirius radio for example, you can just bypass it entirely and close the loop.
I would start with a visit to a shop with an MB diagnostic terminal. The car will report which device has failed, then you can decide how best to proceed. It may be the amp but any device in the loop that fails...or blows a fuse...will cause the "device unavailable" error.
#21
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Yes, they Service Manager wrote down 221 905 5200. This seems to be the code for the center climate control, and I can't see how it could be related to the issues that the car is having. I am tempted at this stage to take the car to another dealer that has a very low mile 2010, and trade in the 2007 that I just bought. Even though my existing 2007 has low miles, and all the work has been done at authorized dealers in the past, I think I'm off to a rocky start. If I picked up the 2010 it would have a full warranty, not just the 3 month powertrain warranty that came with the 07. Also, I would take a lose on the trade in.... Besides the exterior cosmetic differences, (Lights, etc.) are there any other significant differences between the years? (07 vs.10) Thanks again for the input.
A221 905 5200 SWITCH BLOCK
A2219055200 - Switch assy lower, w/o aux heating
Wherever you take the car next, ask the service technician to provide you with a screen shot of what the DAS/XENTRY terminal presented as the error codes.
If you are considering trading in your car, I would recommend a 2012 or newer to get more years of warranty, even though, that time line is getting shorter all the time. A 2010, if it has a service date of sometime in 2011 would still have the baseline MB warranty, if the miles were within spec, and 1 year of CPO-based warranty, if you purchased a CPO'ed car with low miles.
Wherever you have your car now or take the car next, ask the service advisor and/or technician to provide you with a screen shot of what the DAS/XENTRY terminal presented as the error codes and the recommended repair procedures - as the DAS/IXENTRY workstation will present that information to the technician. Once you have that, post a pic here and maybe some of the forum members who are technicians may chime in.
Last edited by Nuru; 11-24-2015 at 11:59 PM.
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2007 Mercedes 550S 2006 Porsche 997 Carrera S
For anyone still interested in this thread…. I took the car to another dealer who did a complete diagnostic on it. The general consensus is that it’s a faulty headlight switch- (221 545 1404) and that changing it out will solve all my electrical problems. Only issue is that it’s on back order from Germany. Also, the Service Manager says that the center is changed out and the 2 flipper switches stay put. Looking on line…..it looks as though it’s all one unit to me. I’m tempted to buy one online and try putting it in myself. Is this a foolhardy approach? (I’d save close to a thousand bucks)
#23
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For anyone still interested in this thread…. I took the car to another dealer who did a complete diagnostic on it. The general consensus is that it’s a faulty headlight switch- (221 545 1404) and that changing it out will solve all my electrical problems. Only issue is that it’s on back order from Germany. Also, the Service Manager says that the center is changed out and the 2 flipper switches stay put. Looking on line…..it looks as though it’s all one unit to me. I’m tempted to buy one online and try putting it in myself. Is this a foolhardy approach? (I’d save close to a thousand bucks)
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