My new 1987 560SEL

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. […]

W126 Klima Relay

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 […]

2400 mile road trip in an eBay 560SEC – Part 3

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 […]

2400 mile road trip in an eBay 560SEC – Part 2

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 […]

2400 mile road trip in an eBay 560SEC – Part 1

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 […]

W126 A/C no longer cooling

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 […]

More and more parts for Mercedes modern classics are NLA

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. […]

W126 SEC auxiliary fan replacement

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 […]

M103 Distributor cap and rotor

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 […]

Youtube tips – shifter bushing and rounded bolts

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 […]