My 1974 450SL was in a SERIOUS front-end accident about 5 years ago. I purchased the car and just lubed the cyls and spun engine with starter - all good and 35 psi oil pressure.....

But I'd pulled the plugs and injector in/out lines, and got great spark but NO fuel pressure....nor is there noise from the tank....

Is there a diagnosis procedure and/or does MB have a safety cutoff for fuel pump that triggers in accidents?

....another problem is that the trunklid is from a newer car and we have no key......any suggestions on where I should access the vacuum system to cycle the trunk lock? I need to open the fuel door to syphon any fuel left in tank....although gauge is reading empty