liveoak

sounds like yr getting the gas may need to check for spark on the plugs. to see if the spark is there i use a spare plug and if spark is on it then pull the ones out and check them. Make sure the any time checking for spark there 's no gas close by and ground the plug to the engine good.
Do ya have your own charger? New batteries sometimes needs to be charged they come with a charge but not always fully. don't sit your battery on the ground or concrete it will kill it over time. if ya don't have a charger wally world {wal-mart} charges them for free around here. If ya don't want to wait on chargeing use a good set of jumper cables Keep me posted on ya progress

124 forlife

Wow that is to low. 15 PSI =1.03 BAR when it should be about 5.5 BAR(79,7) upper and 5.1 BAR (73.9PSI) lower chamber. My friend, there is your problem one. You have to disconnect supply and return,blow it with air,than replace fuel filter at least. While there it would not be bad to check and replace those hoses around fuel pump and filter since no one does that regulary.And finaly blow some air toward tank on both lines to hear bubling or air hising in. Than you go back to check fuel pressure at BOTH upper and lover chamber of fuel distributor.You got values right here.Remember that diference between chambers must be 0.4 BAR(5.8)PSI. Upper chamber- you have to hook up gauge at a top of distributor bolt,looking toward valve cover. Lower chamber-there is a bolt on distributor right above fuel pressure regulator.Bolt looking toward front left headlight. (other regulator,not the EHA). If pressure is not right with warm engine,than you go with tweaking the EHA to get it there.The best thing is done with double gauges ,so you can see both of them at once. Hope it helps.

loclark757

Hi from Virginia Beach, VA

Liveoak: Never jump a Mercedes with jumper cables it fries the electronics! Be prepared with AAA if something goes wrong...

124for life: Im guessing your reffering to the CIS fuel pressure tester when you say gauges? What do I need to get to check all of it?

loclark757

I have spark!

I tried it today. No luck. Half of the spark plugs are coated in blackish liquid. The other half were dry but smelled of gas.

Im sure the blockage is in between the injectors and the fuel distributor.

Any suggestions...