1999 E320 Shuts Off/Key ?? - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 07-18-2009, 08:41 PM Thread Starter
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Date registered: Jul 2009
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1999 E320 Shuts Off/Key ??

We have a 1999 E320 that shuts off, before it warms up mostly. However on occasion it will do this after a 10-15 mile drive @ highway speeds, usually when slowing for a turn or stopping for a traffic light. The last 3 drives have been flawless, one on a 35 mile drive and 2 around town.Any ideas what to look for. Also, this car has the plastic electronic key and I need to know where to pry it open to change the batteries on them. Thanks!!
bobbo1256 is offline  
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post #2 of 2 (permalink) Old 07-18-2009, 09:17 PM
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Date registered: Feb 2007
Vehicle: 03 E320 4M Wagon & 97 E320
Location: Michigan
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Welcome to the forum, bobbo. There is a W210 forum that is dedicated to your car. (Moderator: do you want to move the thread?)

Your stalling issue is very probably the Crankshaft Position Sensor acting up. It is a quite frequent issue on the M112 engine. At least you can try to clean the contacts of both the sensor and the plug. In the W210 forum, we have stickies to show how to locate and replace this sensor.

About the key battery? Do you have an owner's manual? If not, again our W210 forum has stickies that links to manual downloads for post 2000 E class but that is also useful for your 99 as well.

Basically, there is a latch on the bottom of the key. You move it to get the metal key out. The you use the metal key to pry open the plastic key to change the battery.
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