E320-hard to start
 

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

Dave,

I had the same isue with the coolant level sensor. I had to replace the level sensor. It's not expensive.

Juan

Hi Juan,

I'll order a new sender. I'll probably change the hoses and coolant since I also need a thermostat. Takes forever to warm up.

Thanks,
Dave

Follow up
 

I spoke with a tech at the local dealership that I've known for a while. He told me to bring the car in and he would hook it up to the computer and reset the throttle settings. He told me that the fly by wire systems can have the starting issues that I've been experiencing. We'll see how it goes.

What are symptoms of a bad throttle actuator? No doubt an expensive piece.

Thanks.
Dave