Quote:
Originally Posted by EPineda
Help! Every morning before I start/run my 2004 C240 4Matic, I usually check the engine oil level through the dash. Last week and continuing this week, when I do this each morning, the info tells me to 'Observe Waiting Period' although the engine is cold & car was parked overnight in my driveway. When I go through the sequence on the dash, it tells me I have '1 Malfunction' - 'Engine Oil Level, Visit Workshop'. I just did an oil change 2 weeks ago and I'm sure the oil level is good (7-3/4 quarts of synthetic Mobil 1, 5W-30 & new Mann fleece oil filter). The engine doesn't burn oil and there is no leak underneath (the engine). Additionally, I use the dipstick from my 2008 C300 (a little long for the C240) to make sure I have enough oil on the engine which I do. After starting and warming up the engine, I shut it off and observe 30+ minutes waiting period before I recheck the oil level again through the dash. This time the malunction is no longer displayed (No Malfunction) and when checking the oil level it tells me it's 'OK'. Am I having an intermittent Oil Sender malfunction or something I should take care of right away? Appreciate the assistance.
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Having owned a W203 C320 from 2001 through 2007, I have seen lots of these false alarms and have learned to ignore them. The first time I did think about a coolant leak into the crankcase which proved to be wrong,of course. The V-6s just don't have all those designed in defects the previous engines were famous for.
There is a software change (dealer's laptop) that alters the oil level sensor parameters if it's worth a trip to the dealer for an out of warranty car.
BTW, after more warranty repairs on that accursed '01 C320 than I could count, my 2008 C300 (three years old in October) has been the most trouble free car I've ever owned. And as a MB owner since 1973, I am still not used to not making those monthly dealer repair visits.