I'm the new owner of a 1994 E320 ( gas model ). This one has 200 K miles on it. The records indicate that the head gasket and engine wiring harness have been replaced already. I've noticed that the car is hard to start when warm after I let it sit for a while. I have to floor the gas and then crank or it won't start. After that it runs fine. It starts easily from cold. Any ideas? I thought that it could have a vacuum leak.

The low coolant light also glows all the time, but the coolant level is fine. Maybe need a new sender?

Thanks in advance. Also if anyone has suggestions for preventative maintenance that I should do I would appreciate it. I'm a long time Volvo owner and am new to MB vehicles ( we also have an E420, but have only owned for 1.5 years ).

Dave