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Questions & Answers
Where are the under hood jump points for an 03 E320? Battery totally dead, blade key not opening trunk
When jump starting any car you put the positive (red) cable on the positive battery terminal (look for red or the + symbol near the terminal) and the negative cable on a piece of bare metal away from the battery. Almost any bare spot will do as they are all grounded. Make sure the cables and connections won't interfere with the fan or the belts (ie the moving parts under the engine). The negative connection is done last. That way, if there is any spark from connecting the jumper wires it will be away from the battery. Similarly when you remove the cables, remove the negative cable first and then the positive cable. Fumes from the battery can be explosive so you don't want any spark around there.
on Mar 01, 2015
E320 cranks well but does not start
Ignition needs 3 things, a spark, a supply of fuel and air and rotation (cranking) and these three are choreographed via timing. Unfortunately you haven't given enough information to say which it is, so maybe start by checking first that your battery is fully charged and then inspect the spark plugs and leads. You will need an ohm meter to test the ignition coils and you will need to find out what the correct values are for your car. If all that is fine you can move on to fuel supply. Quick and dirty check is to disconnect the fuel line from the injector rail and try starting the car. Have a container ready to catch the fuel, it should spurt out quite forcefully. If it doesn't you may have a blockage, a dirty fuel filter or a dead pump. This leaves you with air (for the fuel air mix) and timing to check. You really need a diagnostic computer at this point but you can still try manually cleaning the MAF sensor, checking all the wiring to it and intake temperature sensor for loose connections and removing all the fuel injectors and manually testing them with a 12v source.
I don't know your level of experience, none of this is too difficult but don't try to fix it without help if this is your first attempt at DIY.
on Nov 17, 2013
My trunk pops open when I step on the brake
WoW that would bite!!!
Sounds like shorted wires in the trunk area, or the computer for those systems is defective.
Not an easy thing to diagnose, even for a 20 year Master Technician like me. Suggest you head to the dealer if you don't know anyone thats very experienced at them.
on Oct 31, 2013
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