Question about Mercedes-Benz S-Class

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S430/102k, mi/ Wouldn't start. Told to put car in neutural and 'rock it' 'Rocked' car, put it in park and car started and 'check engine light lit'Prior to the no start, wife was putting middle range gas in car,also gas tank was @1/4. Once car started and home, put HEET(moisture absorbing liquid in tank, and filled car w/ premium gas. Following day car started,no 'Check Engine light'.. Following evening drove car to a concert, while driving in parking lot engine 'quit'. Put car in neutral so it could be pushed into parking slot. Once in parking slot, car put into park, and it started (check engine light on). On way home drove about 2 miles and again engine cut out.Put car in neutral, and tried to start it no luck, 'rocked car, put car in Park and it started. Drove about 12 mi home. Thought problem was bad gas, but seems otherwise. Starter cranks, car doesn't always start.Though *** might be fuel injectors, but they operate ...when car running. No On board testing yet, but spoke to a mechanic, and based on what i told him, he thought it might be a Crank Position Sensor, and Mercedes has had problems with them.

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  • Mercedes-Benz Master
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Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.


To confirm the problem, the basic troubleshooting is required.


Click this link below and follow the troubleshooting:------

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

---------

This will help.

Thanks

Posted on Feb 18, 2012

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  • Master
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CPS sounds abut right but to be sure you need to get the code read. The Check engine light sets a code in the on board computer and it can give a good indication as what is wrong.
AutoZone will read the error for free

Posted on May 18, 2011

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2 Answers

Stuck in Park, rocked it a little still stuck.


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He rocked it? you married this man LOL

Try checking your Battery Cable connections, positive and negative, at the posts and trace them , check your ground. Check your battery voltage w/ a voltmeter.

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I have a 1991 Buick Park Ave, my car will start but when I put in drive, reverse or neutral I can feel the transmission shift but it will not take off. Several times I put the car in neutral, rocked it...


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4 Answers

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I, as well as a guy I work with both drive s-types. He had this problem with his.

The problem is with a cable that runs from the shifter to the transmission. There is a bracket which holds the cable in place. This bracket is prone to coming loose and when that happens, your s-type won't shift out of neutral. Simply resecure the bracket and cable. Be sure to use loctite on the bracket screws so it won't happen again.

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