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2002 CLK430
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Discussion Starter #1
Have an 02 CLK430 w/dealer installed cd changer and Motorola V60. When I start the car, it says no phone/no cd changer. Sometimes restarting will work, but usually it does not. Anyone had this problem and if so, what was the outcome. Would this kind of problem affect the battery? Car has 2000 miles on it and one day the battery was completely gone for no reason (nothing left on). Dealer has had the car for 2 weeks (not the first time they've tried to fix it). PLEASE, if anyone has had this problem, were they able to repair it and what was the problem. The service records on this car look like a book. Thanks.[:(]
 

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Could be a defective head unit..

The head unit has to be programmed to know that the phone and changer are active. Another thing could be loose connections. I'm guessing the head unit connection since you're losing both signals for the changer and phone.

Do you have to re-enter your radio code whenever you start the car ? If not then power was not lost.

If you are, then it could be a defective battery as your car is too new to have a bad alternator, etc.

Bring it to your dealer or check another one if your dealer can't fix it.
 

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Discussion Starter #3
Frank - thanks for your response. It has been to two different dealers. The first one (who...

Frank - thanks for your response. It has been to two different dealers. The first one (who did the installation) said it was a loose antenna connection. The second one has replaced the head unit and just about everything else. They ordered the parts from Germany and have been talking to a MBZ specialist. After they had it a week and a half, they said it was finally working properly, but when I went to pick it up, as soon as I started it, it said "No Phone." So they kept it. When the battery went dead, they replaced it and had to reset the radio code. It was so dead that the trunk wouldn't open and the key would not turn in the ignition. Once before, the car wouldn't start and it only had 500 miles on it. They also ugraded the software for the radio head unit. The car tests ok when they perform diagnostics on it, but it still doesn't work properly. The technician is losing hair over this.
 

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Tricia, all the audio components * are on a fibre optic loop (called D2B) - it really is...

Tricia, all the audio components * are on a fibre optic loop (called D2B) - it really is a loop, with each item receiving the signal from previous component, actively processing it, and forwarding it.

If one of the audio components fails (or loses power) then nothing can talk to anything, and you get "no phone" and "no CD" messages, and if you have digital bose (C class, S, SL, CL, latest ML) as oppose to analogue bose, then you get no sound.

If this happens regularly when the car is first started, and not whilst its running, then its unlikely to be a loose component/wire because the moving car would make the problem worse.

What is most likely is one of the components on the fibre optic loop is failing and doesnt initialise properly when power is first applied - another possible alternative is a problem with the D2B wakeup signal (which is a wire that all the audio components are connected is used to wake the components up from low power mode (ie while car is off)).

The components will be logging faults codes, which can be read by the dealer with their star diagnosis system, and they can perform tests to check the wakeup signal and the D2B ring. However, its a bit complex for many dealers ....

Does this fault happen everytime/most times the car is started ? Tell the dealer to start check the D2B wakeup signal wiring, and then to change the units on the D2B fibre ring.

(* = headunit, digital-bose-amplifier, phone, cd, vcs, teleaid)
 

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BTW, if its a D2B wakeup problem or a component failing, then yes it could be staying po...

BTW, if its a D2B wakeup problem or a component failing, then yes it could be staying powered up and draining the battery ...
 

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Discussion Starter #6
No Phone/No CD Changer

Richard - How do you know so much about this? My dealer could use your expertise! Actually, they have done everything you mentioned, even replaced all the parts with parts that have matching serial numbers. They did tell me it has nothing to do with the battery going dead, but I suspect otherwise, since it has happened more than once. The only component they have not replaced is the actual phone. The phone itself comes on even if the car does not recognize it and works perfectly. The loose antenna was only a "quick fix" to passify me because they didn't want to deal with it and said no one they know of had this problem before. Thus, it is at a different dealer and they are earnestly trying to solve the problem. I believe it has even switched to radio while the car was being driven. The car will test okay - the fiberoptics, etc - and then it will fail again when the car is started. It is a technician's nightmare (an owner's also). Thanks for your help. If you know of any other reasons it behaves like this, please post them.
 

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I had a similar problem with the CD changer.

Turned out to be a pinched wire in the harness. The changer was not getting the "wake up" signal. Took two days to find. They replaced the changer, the cable, and the head unit plus tested each in another vehicle.

I hate to mention lemon law, but if you don't soon get your car back, you may have a good case. Defects which kill the battery and prevent the phone from working are safety issues.
 

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Discussion Starter #8
Phone/CD Problems

Chuck - thanks for the info. I would be amazed if it was that simple, but you might be right. I called the MB rep today to see what was happening with the car (they have had it now for 20 days) and he said it was a bad CD changer. I don't buy that, because the CD worked fine until the phone was installed. They also restated that the CD/phone problems have nothing to do with the battery. Safety is a big concern, not to mention how many times they have had the car apart. We are supposed to talk tomorrow about my options. Really appreciate your input.
 

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Discussion Starter #9
No Phone/No CD

Richard - you seem to really know what you are talking about, so I wanted to ask you a question. The techs did everything you said and replaced all the components and it still did not work. Now, they are saying it is the CD changer that has been causing the problems. I'm finding that very hard to believe because the CD was installed by the dealer the day I bought the car. It worked well until I had the phone installed and then everything started acting up. I'm wondering if the CD all of a sudden coincidentally went bad or if they just can't figure out what the real problem is and they are telling me that to pacify me. They have had the car for 20 days now. Wouldn't they have looked at the CD before they changed all the other parts?
 

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Let us know the outcome.

As I mentioned, after 20 days in the shop and multiple trips for the same safety related problem, you are approaching or past the point where you could be entitiled to a replacement vehicle.

It could be something as simple as a pinched wire. My dealer was stumped and had tried everything else before they found the bad wire.
 

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Discussion Starter #11
Chuck - when you had the problem with your car,

was it intermittent or did it happen all the time Also, when they test the fiber optics communications, if it was a bad wire, would it show up? The first time it was in the shop, they said it was a loose antenna wire.
 

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It happened during the initial installation of the CD changer.

I had refused to spend $900 for a CD changer when I bought the car. After exploring my options, I took it back two weeks later. They told me that it would just take a couple of hours and it took two days to the problem. Someone with a more in depth knowledge of the systme may have found the problem sooner. Being a brand new car, with 200 miles on it, the harness was probably the last thing that they suspected. I was told that the head didn't recognize that the chagner was connected. They swaped out everything including the fiber optic cable and it still didn't work!
 

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Discussion Starter #13
Similar story - thought I could have the phone installed after

market, but after researching it ended up having the dealer install it. Only had a few hundred miles on the car. It worked at the dealership, drove to the office and parked, got in it to go home and it didn't work. It's been a battle with the dealer ever since. I'll let you know what happens. Appreciate your help.
 

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Discussion Starter #15
It's been to two...

all the dealers are 40+ miles from here. However, the selling dealer is now trying to work something out with me on a different car. They said it would not qualify as a lemon car because they don't consider the problems to be safety issues. I pick my car up in the morning and should know by afternoon if there will be a positive conclusion. They say my car is fixed. I'm sort of confused by the whole thing now, but it seems they are trying to appease me.
 

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It’s not what they think that counts.

It’s not what they think that counts. Its what you and your lawyer think! Safety is not limited to the safety systems (belts, bags, etc). A defect that drains your battery could potentially leave you stranded in an unsafe location. Not being able to use your phone is also a safety problem. The inability of the dealer to fix the defect would leave me not feeling too sure as to what was going to fail next.
 

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Discussion Starter #17
You are absolutely right, Chuck.

That is exactly how I think about the situation, especially being female. Safety is the main reason I bought MB. They sort of put me through the wringer yesterday and today. I did pick up the car and all seems to be okay, but after 21 days and 10 pages of service info, you have to wonder. They did make me an offer to put me in another car, but it didn't make sense financially. I'm tired of dealing with it.
 

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I had a lemon law motivated "good will" repurchase a few years ago.

Not on a MB vehicle. Under PA law, they were obligated to return all of my money (down payment & payments) minus something like nine cents per mile up to when the problem first occured. Took around three months to shuffle all of the paper work, during which time, I drove the vehicle for free. It was a great deal and helped put me in my first MB. I'd talk to a lawyer who specializes in lemon law first before even bringing the topic up with the dealer if it fails again. Let’s hope that your ordeal is over.
 

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Discussion Starter #19
That was a good deal!

Mine wasn't that great. They agreed to purchase the vehicle and sell me another one at a "decent" price, but nothing to shout about. No compensation for the payments I've made or the torture they have inflicted on me (okay, it isn't that bad) - and the replacement car is exactly like the one I already have - a 2002, same equipment. Not a good deal to me, since the replacement car has been sitting on a lot since June, the new models are out, etc. Hopefully, the car will perform like it is supposed to. Still not happy about the whole experience, but life is too short to worry about it. Just getting them to admit the car had a problem was something and the service records are interesting reading.
 
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