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Car Forum / Mercedes-Benz Cars / April 2006H reg Mercedes SE 300 auto., looses power after 70mph
My car drives well up to 70mph.As soon as I try to go over 70mph it looses power. I have taken it to a Mercedes garage but they cannot find any problems. The car has done 35k and has been serviced. Any pointers please? Thanks. > My car drives well up to 70mph.As soon as I try to go over 70mph it looses > power. > I have taken it to a Mercedes garage but they cannot find any problems. > The car has done 35k and has been serviced. > > Any pointers please? Check your fuel filter. Similar to Thom's 3/24/06 post on this NG. Suggest you look at it. When was your car's fuel filter last changed? Probably never, given the low mileage. >My car drives well up to 70mph.As soon as I try to go over 70mph it looses >power. Fuel filter(s).  SignatureNeed Mercedes parts? http://parts.mbz.org Richard Sexton | Mercedes stuff: http://mbz.org 1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net 633CSi 250SE/C 300SD | http://aquaria.net http://killi.net > My car drives well up to 70mph.As soon as I try to go over 70mph it looses > power. [quoted text clipped - 4 lines] > > Thanks. That will be the Mercedes benz automatic top speed controller fitted to the 300SE models specifically to stop speeding. My data books show me that only one vehicle was fitted with this option and was sold to Freddy Mercury of Queen fame. not I wonder what you mean by this. I have a settable speed limiter on my cruise control stalk. (Auto gearbox) Two options: - constant-speed cruise - uncontrolled speed with top limit. DAS For direct contact replace nospam with schmetterling --- >> My car drives well up to 70mph.As soon as I try to go over 70mph it >> looses [quoted text clipped - 12 lines] > > not Hi awas, Did you find out the problem? I also have H reg 300 SE of similar mileage, and strangely have similar problem. I experience loss of power if I go up hill or above 60 mph especially when trying to overtake. I can't get it past 60. I had car in the merc specialist who checked fuel sysyem up to ECU and could not find the problem. Someone mentioned it could be the torque converter but I am bot so sure. Hence I am very interested to know conclusion of your problem Hi awas, Did you find out the problem? I also have H reg 300 SE of similar mileage, and strangely have similar problem. I experience loss of power if I go up hill or above 60 mph especially when trying to overtake. I can't get it past 60. I had car in the merc specialist who checked fuel sysyem up to ECU and could not find the problem. Someone mentioned it could be the torque converter but I am bot so sure. Hence I am very interested to know conclusion of your problem I'm having a similar problem with a 420sel. Won't rev above 3000 revs in top gear. Wondering if it might be in the dist cap and ignition related? Otherwise will change fuel filter to see if that amends problem. |
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