Our testing has revealed that multiple mainstream EVs—including various sedans and SUVs that make no claim of being high-performance vehicles—can accelerate from zero to 60 mph in less than 5. A friend of mine(99 ML320 @150k miles) is experiencing sudden loss of power while accelerating. According to his description, after reaching around 40mph, ML would lose power completely. Seems like tapping brake pedal slightly a couple of times, returns to normal every time. I have a 1988 Mercedes 300 sel with a 3.0 inline 6 cylinder. The transmission fluid smells burnt, and had a gradual loss of power. No slippage, no visible leaks, shifts like it should, if it cools off … read more shazanger Discussion starter. 33 posts · Joined 2009. #1 · Dec 11, 2009 (Edited) My 1985 300D is having some issues accelerating up hill. I can accelerate when going below 50mph, though it very slow. Once I go above 50mph up hill, it stays pretty steady and struggles. If I am over 60mph, the car will gradually slow down. Kia or Hyundai vehicles may fail to accelerate due to problems with the throttle position switch. When the driver presses the gas pedal, the maximum speed the car can reach is up to 15 mph. Common symptoms include the engine having no power when you press the gas pedal and engine RPMs not going past 2000. 1. Weak Battery. If your CLA250’s engine won’t crank or cranks very slowly, then the most likely culprit is weak or dead 12v battery. Investigating more closely and doing a battery voltage test will clarify whether the starting problem is due to the battery. A test can be done to measure the voltage between the battery poles, check the acid Hlv3R. Power steering. It is easy to know the source of the problem if your car only shakes when you are turning. There could only be one problem when this happens. It means you are having issues with your power steering system. To confirm if this is the case. Have a look at the hoses of your power steering. Check for leaks. Your power steering and A/C will also come offline. Although you may survive without the A/C, the loss of power steering can be a serious issue. 3) Overheating engine. The serpentine belt also drives the water pump. This component is responsible for cooling the engine. If it doesn't receive enough power, your engine's temperature will keep rising. 6 Reasons Why Car Revs But Won’t Move. In this article, we will provide six possible culprits leading to car revs but won’t move automatically, which include: a malfunctioning engine control model, poor throttle body, incorrect air/fuel ratio, bad clutch disc, and gross manifold leak. We will dive deeper into each factor to help you find According to SDS, P0121 (DTC 2002-16) is definitely a problem with the accelerator pedal and nothing else. Since this seems to happen when you hit a speed bump or stop and start the car, I suspect it may be a wiring problem. SDS does have specific steps to diagnose problems with the throttle. - Rodney. Explanation #1: A Problem in the Fuel System. One of the most common causes of a sputtering engine is an issue with the vehicle’s fuel system—the filter, pump, and injectors. These three critical components work together to ensure fuel flows smoothly from the fuel tank to your engine’s fuel injectors, and then pumps into the engine evenly.

mercedes no power when accelerate