Mercedes Hirschmann Antenna Mast Replacement: W126, W124, W123, W201

This video is about replacing the antenna mast on Hirschmann antennas W126 W124 W123 W201. Changing out the mast of the OEM Hirschmann antenna is not difficult. Check out this video to see how the replace the main mast, if the controls, main motor, drive belt, and mechanism are still ok. n this technical tutorial, Ralf from Stray Benzes demonstrates the step-by-step process for replacing a broken or bent antenna mast on classic Hirschmann power antennas. This repair is common for Mercedes-Benz W126, W124, W123, and W201 models and allows owners to restore radio functionality without replacing the entire expensive antenna assembly. Video Chapters [00:01] Introduction: Changing the telescoping mast on old Hirschmann units. [00:52] Maintenance Warning: Why you must never lubricate the antenna mast. [01:11] Tools & Disassembly: Using a 13mm wrench to remove the old mast. [02:45] Extracting Broken Parts: Dealing with busted tips and internal remnants. [04:07] Installation: Feeding the drive cable and reversing the motor. [04:41] Alignment: Ensuring the drive cable notch points toward the rear. [05:30] Buyer's Tip: Choosing masts with crimped tips over screwed tips. [05:54] Final Sealing: Checking rubber grommets and water drainage. [06:32] Corrective Tip: Reusing the internal support tube from the old mast. Video Summary Ralf explains that a broken antenna mast is often the result of a snapped drive cable or a bent telescoping section. While replacing the mast is straightforward, it requires careful alignment and specific maintenance practices to ensure longevity and prevent water damage to the antenna's internal motor and controller. Key Technical Highlights: The "Dry" Rule: One of the most important maintenance tips is to never lubricate the telescoping mast. Lubricants attract dust and grime, which eventually becomes a "sticky and nasty" paste that can seize the mechanism; only the internal drive cable should ever be lubricated. Tool Requirements: To remove the mast housing, you will need a 13mm wrench to loosen the top retaining nut. Drive Cable Alignment: When reinstalling the mast, you must feed the drive cable back into the unit while reversing the motor. Ralf notes that there is a specific notch in the housing; the cable entrance should point toward the rear of the vehicle for proper operation. Hardware Quality: Ralf warns against "cheap" replacement masts where the tip is screwed on. These tips frequently vibrate loose and are lost within a few months; instead, ensure you purchase a mast with a crimped-on tip for durability. Water Management: When reassembling the antenna casing, verify that all six rubber grommets are in place and that the internal drain path is clear. Obstructions in the drainage can lead to water pooling inside the unit, causing a "mess" and potential electrical failure. Don't Forget the Tube: A common mistake during replacement is forgetting to transfer the internal support tube from the old mast to the new one. This tube is essential for the structure of the assembly and is secured by a specific rubber grommet at the base. Video URL:    • Mercedes Hirschmann Antenna Mast Replaceme...