So, new to the forum...I have an '83 300D that will not accelerate. She sat for quite a while; starts only in neutral and I have to open the hood and press "Stop" to turn her off. Is there any hope of making this a useable ride again? Changed the oil and oil filter and the turbo appears to be ok. Also some issue with the vacuum system as the doors do not all lock when the drivers side does...Help me revive "Rosa"