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Pelican Technical Article:

Power Antenna Replacement

Steve Vernon

Time:

1 hour1 hr

Tab:

$75 to $225

Talent:

**

Tools:

Philips, flathead screw driver, 10mm wrench, adjustable wrench

Applicable Models:

Mercedes-Benz W124 (1986-93)

Parts Required:

Antenna

Hot Tip:

Clean around body gasket

Performance Gain:

Working radio

Complementary Modification:

Replace rear windshield wiper motor

The power antennas on the W124 are known to have a long life span but they will eventually fail. Changing out the antenna on the wagon is a simple job and can be accomplished in under an hour.

Note: The 94-95 antenna is different with less parts. The sealing is spring loaded versus nut torque. The bottom part is tough to "pop" on. 3/4" socket 1/2" drove and a little lubricant helps. The one thing that is important is to leverage up the bottom of the antenna to position. Then the Top seal pops right on. 

Open the right side rear access panel by pulling back on the handle (red arrow) and then folding the panel down towards the seats.
Figure 1

Open the right side rear access panel by pulling back on the handle (red arrow) and then folding the panel down towards the seats.

With the panel down you can see the power antenna unit (red arrow).
Figure 2

With the panel down you can see the power antenna unit (red arrow).

Working on the rear exterior of the vehicle use an adjustable wrench and un-screw the two nuts (red and yellow arrows) on the exterior of the antenna mast.
Figure 3

Working on the rear exterior of the vehicle use an adjustable wrench and un-screw the two nuts (red and yellow arrows) on the exterior of the antenna mast.

Remove the electrical connection from the top of the unit (red arrow).
Figure 4

Remove the electrical connection from the top of the unit (red arrow).

Use a flathead screwdriver and remove the clasp and antenna box attached to the mast (red arrow).
Figure 5

Use a flathead screwdriver and remove the clasp and antenna box attached to the mast (red arrow).

Remove the Philips head screw on the base of the unit (red arrow) as well as disconnect the antenna cable from the box (yellow arrow).
Figure 6

Remove the Philips head screw on the base of the unit (red arrow) as well as disconnect the antenna cable from the box (yellow arrow).

You can now remove the antenna from the vehicle.
Figure 7

You can now remove the antenna from the vehicle.

Use a 10mm wrench and remove and transfer the lower mounting hardware to the new antenna (red arrow).
Figure 8

Use a 10mm wrench and remove and transfer the lower mounting hardware to the new antenna (red arrow).

Now is a good time to remove the exterior gasket and mast housing, inspect them for damage and clean around the base of the gasket.
Figure 9

Now is a good time to remove the exterior gasket and mast housing, inspect them for damage and clean around the base of the gasket. Installation is the reverse of removal.


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Comments and Suggestions:
quest1966 Comments: An inexpensive compensation for a burned out antenna motor is to remove the extension/retraction mechanism from the inside of the motor assembly. This will allow manual retraction/extension in case you take the car through a car wash.
November 6, 2016
  Followup from the Pelican Staff: Thanks for the additional info. We appreciate it.
- Nick at Pelican Parts
 
Robert Comments: How to change out a 1993 500SL fender mounted power antenna.
The previous owner snapped it off at the car-wash. With it extended...
July 22, 2016
  Followup from the Pelican Staff: Remove wheel well liner, then replace from inside fender.

We don't currently have that tech article. If we get a chance to perform the procedure, we will be sure to document it.

I would grab a repair manual. It will have the procedure, special tools and torque specs.

Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
Tom Bombadil Comments: Dear Customer Service,

Just a note. The 94-95 antenna is different with less parts. The sealing is spring loaded versus nut torque. The bottom part is tough to "pop" on. 3/4" socket 1/2" drove and a little lubricant helps. The one thing that is important is to leverage up the bottom of the antenna to position. Then the Top seal pops right on. This article states w124 86-95 should be through 93
June 12, 2016
  Followup from the Pelican Staff: Thanks for the additional info. We appreciate it. I will have the article updated.
- Nick at Pelican Parts
 

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Page last updated: Fri 12/9/2016 02:41:56 AM