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#1
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quick question about inputting radio code!
in a nutshell: car is a 1990 190E with stock alpine radio. I changed the battery today. then I started the car and punched in radio code. silly me, thought this would be a breeze, as I had done this before. but no, I messed up, and only after many attempts did I read the radio manual. I should have read it first, but I thought it would be a breeze (I think I read the manual last tuime).
okay, so I know what I did wrong. question is what does it mean to leave the system ON for one hour? do I drive the car for one hour with radio on and then punch in codes? surely I can't leave the key in the ON mode with radio ON for one hour! I'm gonna give it a go tomorrow morning, but my drive is only 30 minutes. |
#2
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I disconnect the battery after evey infrequent winter drive in my 300SL.
Forgot the code was well and after three trys it started flashing 'wait'. Had to drive the car a few days later, must have been 45 minutes, before the 'wait' changed to 'code' and then I could enter the correct one.
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Jim |
#3
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This is for Becker radios. Not sure if its the same for the Alpines.
If an incorrect code is entered, the prompt “CODE” and the four stars are displayed again. If an incorrect code is entered three times in succession, the prompt “WAIT” is displayed and the radio is locked out for approximately 60 minutes. After three more subsequent incorrect entries, the radio is again locked out for approximately 60 minutes. The lock out time will only count down if the radio switched on.
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1985 Mercedes 190E 2.3(Sold) |
#4
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okay, I'm getting a bit desperate (not there yet, but...)! after reading the archives and the tips I got here--thanks, guys!--I drove car around with radio on to add up the 1 hour I need to redo the radio codes. this was not a single drive adding up to 1 hour, but more 15, 30-minute drives with radio on. after what I think added up to 1 hour, I entered the codes. first I input the first # and waited for CODE to disappear. it didn't! so I just entered the other codes and the error beep came on after the fifth #. what am I doing wrong?
do I need to leave radio on for one continuous long hour? I have the alpine radio without the WAIT message. yes, I do have the original codes printed on the two credit card thingys. |
#5
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you DO NOT have to DRIVE the car. Just leave the key in position 2 for however long it's required. Mine is only 15 min.
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1991 420SEL Project Car (Completed and rides beautifully) http://www.peachparts.com/shopforum/showthread.php?t=112321 2000 BMW 740IL 2000 Integra Type R - Track Car - SOLD 2005 S2000 - Track Car 06 C230 Sport 89 560SL |
#6
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wouldn't that drain the battery? my manual says for ONE hour!
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#7
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The radio draws very little, you could also turn it on without the key in the ignition, by pushing the power button. I think it shuts itself off after an hour. Try it!
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#8
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my alpine in my '90 190e doesn't turn on once the key is out.
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#9
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This is from the Sept. 04 issue of startuned magazine at www.MBWholesaleParts.com
Well, there's good news and bad news. First, none of the radios Mercedes-Benz has used for years will lose their station settings from a power interrupt, so the customer won't have to tune or seek until he finds his favorite disk jockeys, classical music stations, or talk shows, then reset those buttons. But no matter how fast you might be at realizing what you've done and slapping that cable back on the terminal, you're going to have to reset the code. This function occurs in milliseconds. Rumors you may have heard about internal batteries or lingering capacitance holding this useful feature at bay for any length of time at all are simply false. You'll have to just accept it, then follow through with what must be done to make that radio operational again. The radio will inform you of your mistake with the alarm display, "CODE." After you're done slapping your forehead, what do you do to set things right and stay in your patron's good graces? Well, resetting the radio is done in different ways for the various audio systems found in Mercedes-Benz cars, and here's the information you'll need to perform the procedure on some common models. One note up front: Carmakers first installed radio anti-theft systems to thwart felons and bandits who ripped radios from cars, leaving gaping holes in ruined dashboards. With antitheft systems, this enterprise fails because such a filch renders the radio useless, and although junkies may wallow in delusion with the shrieking gibbers, drug pushers and fencers of stolen property do not. No way they're going to pay anything for even the most upscale unit if it can't be used because the thief neglected to get the code card along with it (that's why M-B advises that the card should not be kept in the glove compartment, although after the owner takes it out and puts it somewhere among his or her other papers, there's a good chance that he or she won't be able to find it again, human nature being what it is). Nothing in this article serves to get around that anti-theft feature. If you don’t have the specific radio code for this vehicle, either from the car owner’s records or directly from Mercedes-Benz's C.A.C. 16 (Customer Assistance Center), you won ’t find it here, either, or any way to work around it. If your customer doesn’t have the radio-code information, you’ll find that the company's representatives will want a fair amount of proof of who owns the car and who is doing the work before they’ll release the unlock sequence. In some cases, MBUSA may require that you take the car to a dealership to confirm all the vehicle information first. Considering that the whole point of this system is to make things inconvenient, if not impossible, for thieves, you can understand why. Mercedes-Benz builds cars, not radios, so there are different radios in different cars, depending on the model year, the accessory choices and so on. Different radios use different release code procedures, so make sure you know which radio you have before you start. You won’t destroy the radio by punching the code in the wrong way, but you could trigger a second level of defense, requiring a longer or shorter wait depending on how often you’ve flubbed the procedure. This second level of defense could require leaving the radio turned on (but non-functionally locked) for as long as 24 hours. The point, again, is to discourage and dishearten those who believe in helping themselves to others' property. Unlocking the CODE Start with the model year in our boxes below. Make sure the radio faceplate in our line drawing corresponds to the radio in the car, and follow the instructions exactly. Many different radios use slightly different unlocking procedures, and you must use the exactly correct one for that radio. For earlier models, you may recall that there were some "gray-market" cars with European radios, none of which is included here. For them, you’ll have to go to your local dealer (who may not be entirely ecstatic about the job, either). The first generation of anti-theft radios to appear in Mercedes-Benz cars were the Beckers used from 1986 to 1989. If one of these early units requires digital unlocking, you’ll definitely have to take it to an M-B dealer because a physical electronic key is required to unlock them, and these keys are not generally available. Avoiding the situation Of course, you'd be better off if you didn't cause this sometimes-frustrating glitch in the first place. So, whenever you're about to disconnect a Benz's battery for whatever reason, stop and think. All you have to do is attach an auxiliary power source to the cables. We used to keep a small motorcycle battery around for the purpose, but now we just use our portable jump-start box. There's even a special tool available called a "Memory Retainer." By the way, if you plug the auxiliary into the cigarette lighter, remember that you'll have to leave the key on to keep Circuit 15 alive. Radios from different suppliers have different release code procedures. If you try the wrong one, you might trigger a second level of defence, which may entail a long wait. Procedures for Selected Models As of Model Year1991 Alpine Radios Recording Sequence: 1. Turn ignition key to position 2. 2. Turn radio ON. "CODE" appears on the display. 3. Enter first digit of anti-theft code from CODE card. "CODE" will disappear and the entered digit will flash on the display panel. 4. Enter remaining three digits (total of four digits). Verify that the correct code is flashing on the panel. If wrong digit was entered, reenter code until correct code is displayed. 5. Press button "*" to complete the sequence. Radio will beep and resume normal operation. If Unsuccessful: 6. If "HOLD" appears on panel, the radio must be left ON until "CODE" appears. This may take either 15 minutes, or 24 hours depending upon the number of unsuccessful attempts made. 7. Once "CODE" appears, continue with step 3. As of Model Year1994, Alpine & Becker Recording Sequence: 1. Turn ignition key to position 2. 2. Turn radio ON. "CODE" appears on the display. 3. Enter first digit of anti-theft code from CODE card. "CODE" will disappear and the entered digit will appear followed by four dashes. 4. The next digit to be entered flashes. When all five digits are entered, the first digit flashes again. Verify that the correct code is on the display. If a wrong digit was entered, re-enter complete code until correct code is displayed. 5. Press SC, Seek or Tune button to confirm code. The radio will resume normal operation. If Unsuccessful: 6. If "WAIT" appears on panel, the radio must be left ON until "CODE" appears. This will take either 10 minutes or 24 hours depending upon the number of attempts made. As of Model Year1999, Becker Accessory Radio Recording Sequence: 1. Turn ignition key to position 2. 2. Turn radio ON. "CODE" appears on the display followed by four stars. 3. Enter first digit of anti-theft code from CODE card. The first star will disappear. Enter the remaining three digits. Each successive star will disappear as the code is entered. 4. The radio will resume normal operation if the code was entered correctly. 5. If an incorrect code has been entered, "CODE" and four stars will reappear on the display. The correct code must be entered. If Unsuccessful: 6. If three unsuccessful attempts are made and "WAIT" appears on panel, the radio must be left ON until "CODE" and four stars appear. This will take 60 minutes. 7. Once "CODE" and four stars appear, continue with step 3. Up to Model Year1999 Model 163 Premium Radio Recording Sequence: 1. Turn ignition key to position 2. 2. Turn radio ON. "CODE" appears on the display. 3. Enter first digit of anti-theft code from CODE card. "CODE" will disappear and the entered digit will appear followed by four dashes. Enter the remaining four digits. 4. Press the < or > button to confirm code. Radio will resume normal operation. 5. If an incorrect code has been entered and confirmed, "CODE" will reappear on the display. The correct code must be entered. If Unsuccessful: 6. If three unsuccessful attempts are made and "WAIT" appears on panel, the radio must be left ON until "CODE" appears. This will take 10 minutes. If three more unsuccessful attempts are made and "WAIT" appears on panel, the radio must be left ON until "CODE" appears, which will take 60 minutes. 7. Once "CODE" appears, continue with step 3. |
#10
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Frank
My radio /anti-theft is off completely, after I pulled out and fixed the CD player, for a 1994 E320. I just left the key in the #1 position for 24 hours and nothing happened.
How can I tell if the radio is "on" is it's blank? |
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