Just how fast do you wish to go with your BMW 535d DMS? When you have £1000 to burn, and you’re somehow dissatisfied using the sensational performance from the fastest-accelerating diesel production car this magazine has ever tested, the boffins at tuning house DMS may help. By re-profiling the 535d’s engine management computer, torque is ramped up from 413lb ft to some claimed 478lb ft, with power up from 272bhp to some claimed 321bhp. We haven’t rolling-roaded the car independently so can’t verify those figures, however we did spend each day in DMS’s 535d Sport demonstrator created sure we included a performance figuring session on the way.
The conventional car Isn‘t slow : headline figures are 0-60mph in 6. 0sec, 0-100mph inside a stonking 15. 0sec and 50-70mph in 3. 3sec. But when we stepped straight into the BMW 535d DMS car it felt much more brutal – it sounds louder and much more aggressive, and also the throttle response is breathtaking. This car is astonishingly, ludicrously fast in the least speeds, but especially above 100mph. It drank a bit more fuel compared to the standard car, with cruising consumption dipping from around 31mpg to 28mpg at normal motorway speeds, however the electrifying throttle response would lead you to believe it’s worthwhile.
The only real other downside would be a bizarre surging whenever you floored the throttle and kept the car inside a high gear at lowish speed. Apparently a faulty air mass sensor was the matter. How quick can it be? Try 0-60mph in 5. 5sec, 0-100mph in 13. 5sec and 50-70mph in 3. 0sec. Once we really rack our consciences, we’d probably hesitate before chipping a 535d we’d bought with these own money – it’s already incredibly fast and there’s something comforting about leaving it like the factory intended. However that shouldn’t stop anyone attempting to find much more pace coming from the greatest diesel car on this planet, because this conversion is an effective one. Bill Thomas EXTRACT#EANF# BMW 535d DMS
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