C280 Poor Engine running after driving
Problem first started yesterday after about 20 minutes of driving. I slowed to a stop light and noticed the engine was running very poorly... seemed like it was misfiring badly, shaking the whole car. I pulled over, turned off the car, restarted it, and it ran fine. Today, this has occurred about 5 times. Once starting the car, it runs fine... but after a short time driving, and coming to a stop, I notice the it not running properly. It is not only at idle... the engine runs poorly at all speeds, there is quite a power loss, and transmission shifting has harshened dramatically. No check engine light has come on or anything of the sort. I don't think it's the spark plugs, fuel filter, air filter, or anything like that... because it runs fine at first... and then suddenly begins chugging.
Any ideas? I hope it's nothing major. BTW, I have 110k miles on the car.
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