Have Mercedes Questions? Ask a Mechanic for Answers ASAP
Hi, my name is***** you have lost the timing chain and bent valves it would be best to locate a lower mileage used engine. The cost of replacing the valves and the possible additional damage to the heads and pistons makes it unreasonable to try and rebuild your old motor. You can usually locate used motors on Car-Part.com.
Let me know if you need anything else.