A few weeks ago my 300SE started to show low oil pressure on the gauge. It happened all of a sudden while on a drive. At the time, I surmised that I had a dead M103 Oil pressure sender. They are apparently a common fault. I ordered a new one and fitted it today. The M103 oil pressure sender can be found on the...
When I wrote my W126 buyers guide earlier in the year, I did not include price information. Pricing is very specific to each location and changes frequently. This W126 price guide covers my observations about the prices of W126s in Australia. Its likely to be valid for the next year or so. There are a few factors that impact the price of a W126. ...
An obvious issue on my 560SEL was how the rear seat was mounted. There was an obvious gap between the parcel shelf and the rear seat. The 560SEL came standard with a W126 power rear seat. This either standard or optional on other W126 LWB models. It seemed clear that when the self-leveling rear suspension was removed, the trim was not put back correctly....
I have now completed the installation of the Movovalve elimination kit on my 560SEC. So far so good. Most importantly, I don’t have heat when I don’t want it, but it is available when needed. In the last installment, I completed the routing of the cooling hoses. From there I installed the radiator and ensured the cooling system didn’t have any leaks. The...
Today’s job was installing a W126 radiator into my 1987 560SEC. I had previously sorted out the cooling hoses as part of my monovalve eliminator install. I was just waiting on a few extra parts I had ordered to begin this job. Firstly I decided to replace the coolant reservoir tank. My current one is not leaking, but the plastic was quite discoloured and...
I had previously removed the W126 cowl covers to clean the drains. Now they are clean and I have replaced the ABS module bracket, they were ready to be re-installed. Before I did so, I had some new parts to install. The first were the rubber boots that cover the windscreen wiper shafts. On most W126 cars they are almost non existent. On my...
As part of the installation of the Monovalve elimination kit, I needed to remove the ABS controller bracket. The bracket was in the way of the coolant hoses. I order to remove it, I needed to remove the W126 cowl drains cover. This is great opportunity to inspect this area and clean it. Cars that have parked outside often have debris here that causes...
I have been working on a project to eliminate the monovalve from the climate control system in my 560SEC. In the last part I had almost completed the cooling hoses required for the job. I had mostly worked out hose routing I was looking for – which was combining the dual outputs from the heater core into a single hose where I could place...
In April 1982 Mercedes-Benz was pretty much king of the hill when it came to mainstream luxury cars. Rolls Royce was in a league of its own, and Jaguar was at its quality nadir. BMW were just releasing the E30 which would propel them to a leadership position in the small, luxury market. They still could not touch Mercedes-Benz in the mid or upper...
The Mercedes Club organized a joint drive with the Rolls Royce Owners club to the Corrugated Cafe in Peats Ridge. Peats Ridge is about 90km north of Sydney. This was one of the first drives after the COVOID19 restrictions were eased. A couple of the members of the club were trying to organize a line up of W126s at the event. The event seemed...
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...
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...
I am currently in the USA and had a few hours to spare in Cincinnati Ohio before I headed out to the airport. When I lived in the USA, I used to go to the self service junkyards to grab bits and pieces. These junkyards are larger in the USA and they have standard price lists for parts, no matter what car you...
The W126 range was in production from 1979-1991. I’ve never seen a comprehensive table of W126 differential ratios, so I have attempted to create my own. Not only did they vary between models and years, but in some cases countries too. It is possible I have missed a few more country specific ratios. Please indicate in the comments below if I have. The data...
Back in early 2017 I fixed my broken odometer. The 300SE odometer repair was successful, but there were two things I needed to follow up on. The odometer was reading 10% low. I could hear the gears, especially in cold weather. In addition, some time after I repaired the odometer, one of the bulbs that illuminates the instrument cluster at night failed. The fix...
When I purchased my 300SE, the A/C worked well. I assume the overall Climate Control system did too. I never did test anything more than max A/C as the weather was very hot. Everything seemed fine, except for the little aspirator fan which was noisy. Unfortunately 3 weeks after purchase, the A/C stopped working. I was sitting at red traffic lights and...
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