W126 Becker Radio install – part 3

I am currently in the process of installing a period correct Becker Radio in my 560SEC. In part 2, I had the system up and running. The final task was to tidy up the installation and re-install all the trim.

The first step was to properly organize and tidy up the wiring. I wanted a neat install, and to hide all the wires out of the way. The Alpine amplifier I am using is small enough I could tuck it in with some other control modules in the passengers foot well.

I mounted the amp with the back face up […]

W126 Becker Radio install – part 2

In part 1 of this series, I had begun installing a Becker Mexico 1402 in my 560SEC. I had planned out my install and done the core wiring for the Becker itself. Today, my goal was to complete the wiring of the ancillary components and test the system.

I decided to use two X30 harneses for the install. I had four available plugs on the X30 power block, so it kept it neater if I used two. The main purpose of the first one was to connect my USB ports. I also used one of the ground wires for the […]

W126 Becker Radio install – part 1

My 1987 UK Market 560SEC was originally sold with Becker Mexico Cassette player (option 251). I’ve been planning for a while to re-install a period Becker radio, with a few of my own upgrades.

My first task was to research the radios and purchase a suitable unit. I ended up purchasing two radios, Becker 1402 and Becker 1480. As the skills and parts to repair these radios are getting harder to find, I wanted a primary radio and a backup unit. I am installing the 1402 and will get the 1480 repaired and keep it as the backup. I have […]

Locating the W126 X30 power block on RHD cars

I’m currently planning to re-install the Becker Radio in my 1987 560SEC. At the same time I will be installing a small amplifier, a bluetooth FM Injector and a couple of unobtrusive USB charging ports.

The second generation W126 wiring harness provides a factory way of adding additional accessories. This is the X30 power block. Up to 8 accessories can be connected using factory plugs and their own wiring harnesses. The number already connected will depend on options installed on the car.

Other than the direct power for the amplifier, I plan on using the X30 power block for the […]

Uprated W126 A/C condenser

When I purchased my 560SEC, the A/C was not working. It hadn’t even been converted to R134A. I suspect it had never worked while in Australia. The car came out of Queensland, and I’m not sure I would want to drive a car without a car up there. The long time owner was in the Army, I guess tougher than me! When I purchased the car, I first concentrated on the important stuff like the timing chain. After that was sorted out, I had the A/C converted and charged up. It’s no longer possible to buy R12 in Australia unfortunately.

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Connecting the Becker Line out module to a modern amplifier

I’m currently planning to install period correct Becker radios into my 450SLC and 560SEC. I previously outlined the radios I plan to use, and tested them. I was able to confirm that the Becker 1402 destined for my 560SEC was working correctly. Rather than using the internal 2x25W amplifier in the Becker, I planned to connect it to an external amp. While I could have used speaker level inputs, I was hoping to leverage the Becker Line out module to connect to the amp using normal RCA inputs.

The Becker Line out module was part of the Premium sound […]

Planning Becker radio installs

In the two years of owning my 560SEL, one of the things I have appreciated is the original Becker CD player. I’ve owned many classic Mercedes-Benz models over the years, but until the 560SEL none of them had their original Becker intact. The Becker radios just look and feel right in the dash of the car. I had never really understood that before. That got me thinking about putting some of my other cars back to stock.

The first car in line is my 1977 Mercedes-Benz 450SLC. When I purchased the car in 2003, it had a 90’s era cassette […]

Rebuilt Mercedes brake calipers

I attempted to attend the MBCNSW May night drive with two separate cars. Coincidently, I had the same brake issue with both cars. On both cases I experienced a soft brake pedal, and on further investigation a very hot drivers side rear wheel. The rear caliper was not releasing properly causing it to drag and boil the brake fluid.

I knew the hoses were only a year old on the 560SEL, so the issue was likely to be with the caliper. The hoses were probably due for a change on the 250SE, so could have been either issue there. Based […]

Fitting the AMG Aero I wheels to my 560SEC

I’ve had the AMG Aero I wheels ready to go for a couple of months. I couldn’t fit them until the Penta wheels were on the 450SLC. The reason was that I wanted to use the lug bolts from the SLC on the 560SEC. I do have another set of the long style lug bolts, but they are not nearly as nice as the ones that were on the SLC.

As with the 450SLC, I planned to clean the wheel wells at the same time as changing the wheels. After I had set up my new pressure washer, I figured […]

16″ AMG Aero I wheels for my 560SEC

When I purchased my 1987 560SEC it came with Simmons B45 Wheels. These are a high quality Australian made three piece wheel. I pretty quickly replaced these for a couple of reasons. The 245 profile tyres rubbed quite badly; There was a terrible wheel wobble; and I didn’t think the suited the car. I sold those wheels and replaced them with the replica 8 hole wheels I had on my 450SLC at the time. I only saw those wheels as a temporary solution. They look good, but I still didn’t think they were quite right for the car. I started […]