What kills an outdated Mercedes-Benz W140 with a mid-six diesel? Now not a lot, to mention the least. However slamming one down the Autobahn regularly for a couple of mins is not going to assist. Ignoring overheating is one of the best ways to kill any engine, however to the credit score of the outdated S 350 within the video, it was once nonetheless operating on the finish. Heck, it could now not also be lifeless. It in reality hurts, although. The top of this video from TopSpeedGermany on YouTube displays an dangerous cloud of smoke coming from the engine bay, however now not prior to launching a 1994 Mercedes-Benz S 350 as much as 115 mph at the freeway. That is the automotive’s most sensible pace, so it must have its unique 149 horsepower nonetheless to be had. Alternatively, the highest pace comes at a low pace after a longer term. So long as the driving force has sufficient energy to go into the freeway, we estimate 17 seconds to boost up to 100 kph … from 60. The diesel Merc isn’t a pace demon, however it is extremely gradual. 
So far as we will inform, the sound is distorted for a couple of mins till we see 185 kph (115 mph) at the speedo. The engine is stored as regards to top RPM for approximately a minute when smoke begins to look. Test the temperature gauge, which is to the left of the speedometer. It rises slowly right through the journey, and is derived out when the smoke display begins, as the driving force lifts off. This may be the place we see a chilly caution gentle light up at the sprint. The amount is not top sufficient to listen to actual rattles, however the engine nonetheless revs when the driving force pulls off the freeway. And the smoke we see looks as if steam, so the failure may well be one thing so simple as a burst coolant hose. Alternatively, seeing the upward push in temperature and difficult use that result in the failure, we suspect that one thing took place within the mill. So here’s the highest tip. If you are making plans to race in an outdated automotive on a highway, it is a good suggestion to keep watch over the gauge.
