How to properly remove the door panel of a Mercedes C126 Coupe SEC. mercedes Benz coupe 500sec , 560sec , 380sec, 420sec w126 coupe . special thanks to Hovik The second model range to bear the S-Class designation, the W126 was originally offered as a three-box saloon with either a straight-six or a V8 petrol engine, or a turbocharged diesel. The C126, the two-door coupe version, was introduced in 1981, and additional engine options were made available throughout its life. And one of the cars listed is the Mercedes-Benz 560 SEC, produced from 1985 to 1991. Not really a huge surprise, right? The hard-edged, big-body styling of the ’80s-era S-Class coupe has maintained a pretty solid fan base over the years. In fact, as Bloomberg points out, no other vehicle holds quite the same road presence, which makes it a 126 ACC Wiring Diagram. My 1991 560 SEC blower was dying, so I pulled it out and replaced it, but no change, so I replaced the Blower Motor Resistor and the AC Control unit. When I un-clipped the ACC Control unit, I un-clipped the wiring switch cover and all of the wires sprung out of their place in the plug, so I now have 14 wires looking for 85-91 Mercedes W126 500SE 560SEL Gear Floor Shift Shifter Bezel Trim 1262670740 (Fits: Mercedes-Benz 560SEC) Pre-Owned: Mercedes-Benz. $143.99. Was: $239.99. or Best Offer. I’ve the two SEC variants, with SLS and without. My stock USA version w SLS has less than half the road experience yours does, the 500 maybe 40+K on the clock. The 500 has the H&R, Bilstein B8, 19mm rear bar….. NO SLS from new. The USA 560 is smooth and terrif on roads w swoops curved etc, even better w 4 people & luggage in the trunk! Hi everyone. The sunroof in my 560 SEC hasn't worked, like ever, so I decided to find out why. Found that the whole mechanism was jammed up with hard grease and number of pieces needed replacing. On first inspection, the sunroof "slide" or "angle" (depending on who you talk to) on one side was smashed, the other side was ok but on removal broke My mildly modified 560SEC. After posting a couple of pics of my 560 SEC recently a few of you have reached out and suggested that I start a new thread to post a few more pics and give a little bit more detail about the car. Its a 1987 560 SEC (ECE)which was originally delivered under a 402 delivery code in German to Jackie Oliver from the UK on The W126 S-Class had a long development period, and Mercedes started on the project in 1973. The sedan didn’t enter production until December of 1979, with the C126 coupe following in September 1981. The C126 was based on the short-wheelbase sedan platform, with a three-inch chop to make it 112.2 inches. My 300se was worse. So, some points: 1. Recently I have driven a few cars equipped with SLS and have been unimpressed with some. This is mainly due to poor condition of the SLS resulting in a harsher ride than normal and sag. However, I found a 560SEL that was in awesome condition and the SLS was a revelation. 2. TkHk.