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Pelican Technical Article:

Radio Removal

Steve Vernon

Time:

15 minutes15 mins

Tab:

$0

Talent:

*

Tools:

Radio removal tool, 13mm wrench

Applicable Models:

Mercedes-Benz W124 (1986-95)

Hot Tip:

Check the fuse on the rear of the unit

Performance Gain:

Working radio

Complementary Modification:

Clean air vents

The radio on the Mercedes W124 can be removed in a matter of minutes if you have the proper tool. If you are going to be working on your car over time, a set of radio removal tools is a good investment. Pelican Parts sells several different versions to make the job a breeze.

Begin by disconnecting the ground strap (red arrow) from the battery's negative terminal (yellow arrow) with a 13mm wrench.
Figure 1

Begin by disconnecting the ground strap (red arrow) from the battery's negative terminal (yellow arrow) with a 13mm wrench. Please see our article on battery tending and removal for further assistance.

If you are going to be working on your car over time a set of radio removal tools is a good investment.
Figure 2

If you are going to be working on your car over time a set of radio removal tools is a good investment. Pelican Parts sells several different versions to make the job a breeze. In this set you are going to use the tool indicated by the red arrow.

The W124 radio uses the key with an approximate 30 degree angle cut in it.
Figure 3

The W124 radio uses the key with an approximate 30 degree angle cut in it. The key will be inserted into the slots in the radio with the angled section pointing in toward the radio (red arrow).

There is a slot on each side of the unit to slide the key into (red arrow).
Figure 4

There is a slot on each side of the unit to slide the key into (red arrow). Insert the keys and apply gentle pressure on the key handles toward the outside of the radio.

You can now pull the radio out by the keys (red arrows).
Figure 5

You can now pull the radio out by the keys (red arrows).

With the radio removed you can see how the keys work by grabbing a small clip in the cut out and sliding the keys end towards the center of the radio (red arrow).
Figure 6

With the radio removed you can see how the keys work by grabbing a small clip in the cut out and sliding the keys end towards the center of the radio (red arrow). It releases the locking clip on the side of the unit (yellow arrow).

With the radio pulled forward unplug the antenna connection (red arrow) from the unit (yellow arrow).
Figure 7

With the radio pulled forward unplug the antenna connection (red arrow) from the unit (yellow arrow).

There are three wiring connections on the rear.
Figure 8

There are three wiring connections on the rear. Squeeze in the clips (red arrow) and separate the connections.

If the unit has stopped working you should always check the fuse (red arrow) on the rear of the unit before replacing it.
Figure 9

If the unit has stopped working you should always check the fuse (red arrow) on the rear of the unit before replacing it. Installation is the reverse of removal.

Comments and Suggestions:
old benz Comments: i have 126 1991 420sel with 98,500 original miles, fully equipted. Radio displays wait. I went to dealer to retrieve code. Still displays wait. What gives?
July 28, 2017
  Followup from the Pelican Staff: 1. If the radio is disconnected from the power supply, it is not operational when re-connected. After switching on the ignition and the radio, the readout CODE appears in the display.
2. The code number for the radio is advised to you on the enclosed CODE CARD.
3. To enter the first digit of the code number, you have to continue pressing station button 1 until the correct digit appears in the display. Adopt the same procedure for the second, third and fourth digits.
4. Once you have entered the correct code number with the station buttons 1, 2, 3, 4 and confirmed the entry with the SEEK button (press down), the readout CODE disappears. The radio can now be operated.
5. If you enter a wrong code three times, you must wait 15 minutes before making a new entry. In addition, if 9 incorrect entries are made, the radio will then not operate for 24 hours. During this time the radio and the ignition (terminal 15) must remain switched on. - Nick at Pelican Parts
 
dwc Comments: Hey guys, I accidentally left the key on auxiliary with the radio on over night and this morning I saw code .
Every thing is good. I still don't know how long it takes, but thanks to all of you for your help
I
April 26, 2017
  Followup from the Pelican Staff: CODE likely appeared due to the battery discharging. The instructions for entering your code should be in your owner's manual. Use the numbers on the radio panel, enter your radio code.

- Nick at Pelican Parts
 
dwc Comments: Thanks guys, I'll keep trying before I shoot it.
March 28, 2017
  Followup from the Pelican Staff: Let us know what you find. - Nick at Pelican Parts  
dwc Comments: Yes I did leave the key on, but only for about thirty minutes.
March 22, 2017
  Followup from the Pelican Staff: See my answer below. Don't give up! - Casey at Pelican Parts  
dwc Comments: Yes, but only for about thirty minutes or so.
March 22, 2017
  Followup from the Pelican Staff: I forget the amount of time but I believe it is over 1 hour - Casey at Pelican Parts  
dwc Comments: I tried waiting on the enter code screen for two hours. I also unhooked the battery, still no luck. Any other suggestions?
March 22, 2017
  Followup from the Pelican Staff: I think you need to leave the key on when waiting, did you do that? - Nick at Pelican Parts  
dwc Comments: Thanks Casey, I'll try that.
March 21, 2017
  Followup from the Pelican Staff: no problem. - Nick at Pelican Parts  
dwc Comments: I have code # but the screen won't tell me to enter it anymore like it used to, it only flashes wait. Can you tell me what to do?
March 18, 2017
  Followup from the Pelican Staff: I remember that, you have to leave the radio turned on until it resets, then you will see code again. - Casey at Pelican Parts  
olaf777 Comments: How much a tool cost ? I would need to use it probably just twice , but dont want to risk any damage to my precious MB :
January 12, 2017
  Followup from the Pelican Staff: Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Derek Comments: is this radio removal the same for a Becker unit?Derek
August 13, 2016
  Followup from the Pelican Staff: It should be. - Nick at Pelican Parts  

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Page last updated: Wed 12/13/2017 02:42:44 AM