Had the same situation, cranked, cranked, pumped gas pedal a bit and still nothing. Turned out that the battery was not at optimal charge to surge the glow plugs...

__________________
"Why operate within the law when you can operate above it?"

MB roster
'85 500SE euro Ratrod
'92 500E's x2 / '94 E500 stored
'91 560SEC w/43K stored
'92 Cabby 16V OE 2.1 AutoX car
JDM RHD cars now.