Many people are interested in which cars are the fastest, but perhaps a more interesting question is which is the slowest W126? There were a plethora of W126 models offered from 1979-1991 and not all of them were particularly fast. For the purposes of this test, I have assembled some contenders, based on data from www.automobile-catalog.com. This comparison assumes the cars are in as-new...
I’m a big fan of the Mercedes-Benz W126. While it might not have the grandeur of the 60’s models, they make a really usable classic. The W126 can even be used as a daily driver. It still has the feel of a classic Mercedes-Benz but you get safety features like ABS, good air conditioning and reasonable fuel economy. When they are looked after they...
In 2020 it is easy to forget just how expensive Mercedes-Benz vehicles were in Australia before the increased competition from brands such as Lexus, Audi and the like. Additionally, Luxury car taxes were much higher in those days. In real terms, the cars were significantly more expensive. Below is a Mercedes-Benz Australia price list from July 1991. There are a couple...
After owning the 560SEL for a couple of weeks I’ve had a chance to spent a bit more time looking over the car. I’ve also had a few more opportunities to drive the car – covering about 150 km over the time. This is a lot less than I would normally want to do, but with COVID19 lockdowns, I can only drive the car...
I am now the second owner of a 1987 560SEL. I wasn’t looking for a new car, but I could not pass by the chance to get my hands on a one owner 560SEL. Unfortunately, as much as I like my 1986 300SE, that car will be for sale after things get back to normal. The 300SE will be a good car for...
A week or so ago, I diagnosed that the likely cause of my non functional A/C in the 300SE was the W126 Klima relay. The second generation W126 went to a Klima relay to control the A/C compressor. The W126 Klima relay is more of a control unit than a simple relay. It has multiple inputs that determine if the A/C compressor should not...
This is the third and final part of a series on my mad cross country dash in an eBay 560SEC. Part 1 covers the purchase and initial impressions of the car. Part 2 covers the drive from California to Missouri. I picked up my drive in Central Missouri and had about 750 miles to cover on the final day. On the first two...
This is part 2 of a description of a road trip I took back in March 2009. I was living in Michigan and purchased a 1988 560SEC in the LA area. I had to be out there for work so the plan was to drive the car around for the week to get familiar with it and then drive it back over the weekend. ...
I lived in Michigan between 2007-2011. When I first moved there, I bought a cheap but somewhat rusty 1989 560SEC to be my daily driver. It was already rusty so I was not worried about driving it in the notorious Michigan snow and salt. After about 18 months the original 560SEC had been hit a few times in the snow. It also had a...
There is an old saying that deaths come in threes. I’ve not had any deaths in the family, but I had the A/C dead in three cars at the same time. The easiest was the A/C in my 450SLC that just needed a re-gas. The W126 A/C has been more problematic. Just as I got the system in my 560SEC mostly finished, the A/C...
Mercedes-Benz have justifiably maintained an excellent reputation for making parts available for their older vehicles. They still do a great job for their ‘halo’ classics like the 300SL gullwing or Pagoda SL. At the same time, I have noticed a big increase in the number of parts No Longer Available (NLA) for the modern classics. I define the modern classics as those made from...
Once I got the air conditioning working on the 560SEC it was apparent the auxiliary fan was not working. As can be seen in the wiring diagram below, the W126 SEC auxiliary fan can be triggered either by high coolant temperature or by refrigerant pressure. The diagram is for 1986-1990. In 1990, the W126 went to a dual fan setup. The fan can...
Today I changed the Distributor cap and rotor in my 1986 300SE. I bought the new cap and rotor about two years ago but only just got around to changing it. Unlike on the earlier engines, the M103 distributor cap is a fiddly job. Instead of sticking upwards, it comes out sideways as it attaches to the camshaft. I find that whenever I buy...
Today I did an engine and transmission oil change on the 300SE. I don’t normally post basic maintenance to this website as it really isn’t that interesting. In this case, I used to tips I learned form MercedesSource videos that really sped up the job. MercedesSource are an online parts vendor, who also make some useful special tools. The owner, Kent, runs a...
In part 2, I had been struggling with my new SLC rear Calipers. As outlined in that section, the new calipers I had on hand are for models not equipped with the anti-squat rear suspension. This was because USA models were not so equipped. The hard lines were too short to fit properly and fouled on the suspension bump stops. I dropped the...
A couple of weeks ago I started investigating the dragging brakes on my SLC. I found both of my rear calipers had been overheated and were in poor condition. I ordered a set of rear calipers, and decided to change the rotors too. Mine were still in spec, but on the lower end. The hoses I had purchased last time were also not...
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