2007 Mercedes-Benz R320 CDI Q&A

2007 Mercedes-Benz R320 CDI Question: my car has no oil and won;t hold oil after 7 qts. do i have to replace my engine

the car stopped while driving. can i have engine damage -
Answer 1
Did you notice a puddle of oil on the ground , after putting the 7 quarts in? Does it start up? Is it making strange knocking noise? -
Comment 1
no mention of oil on the ground. the car won't turn over with start attempts. engine damage is speculated -