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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 side of the oil filter housing at the back of the engine. Most of the threads you’ll find on the various forums are referred to the W124. Apparently on the W124 space is tight and it […] 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 for all these things required the removal of the instrument cluster. The procedure to remove the cluster and the speedometer is covered in my previous article. The low reading was attributed to having the wrong gear. […] My ‘new’ 300SE suffered from a common problem with Mercedes of that era, a non functional odometer. The mechanical odometer is driven by a small electric motor instead of a traditional speedometer cable and associated gears. This is because the speedometer is electric yet the odometer is mechanical. This combination was common in the late 80s and early 90s before cars moved to fully electric speedometers and odometers. The Series II W126 uses a VDO odometer unit shared with many Mercedes and BMW models of the era. There are a number of articles on the internet that already cover W126 […] | |||||
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