Question about Cars & Trucks
CAR WILL NOT START
Posted by Anonymous on
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Posted on Jan 02, 2017
Crank shaft position sensor is bad. This is the most common failure. Its location is on the rear drivers side of engine, where the transmission bell housing mates to the engine, only one small bolt and a two prong electrical connector hold it on. Usually will not throw a trouble code. If you remove it you can test it with an ohm meter, will have an erratic reading or read open loop, can malfunction intermittently or permanently after parking vehicle and won't restart. Applying some heat source to it during ohm testing with a hot air heat gun will usually cause the sensor to read open loop if your not sure if its bad or not. This reply is probably way to late, but I just happened to come accross it while online. Harry (master certified MBZ diagnostic tech)
Posted on Dec 06, 2008
With the key in position 1, hit the odometer reset button on the left on the cluster 3 times in a row. The cluster should beep once. scroll through the multifunction display with the page buttons until the display shows the onboard voltage screen. It will say something like "UB: 12.2 V" scroll threw this menu with with the up/down until you reach the "service menu" page. scroll down to "confirmation" press +, confirm full service with +. Wait till it says service confirmed. cycle the key off and then back on to position 2. Scroll to the normal service menu where it normally says how many days or miles till next service. If the service was reset correctly, it will say "service display not possible" for a few minutes while it recalculates. You must cycle the key off and back on before it will back out of the onboard diagnostic mode. If you dont back out, the esp/abs/bas lights will illuminate when the car is started
Posted on Apr 13, 2009
Is the merc dealer serviced??, sometimes if you change brands of oils in synthetics >>semi synthetics you will get excess oil useage. City driving will tend to use more oil, but the merc should be able to do its 10,000k betwwen oilchanges.
Anyway, check what oil is being used in both weight example 0-60w, 5w-30 etc and by brand, check that the API oil spec meets what is required for your vehicle example API SM, SJ, SL etc.
Posted on Aug 08, 2009
You are putting your foot on the brake before you try to move the shift lever, right?
Most cars have a locking device that prevents the shifter from moving unless the motor is running (key inserted into the wheel lock and on) and the brake petal is depressed.
Posted on Jan 02, 2010
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