Is it normal for the engine to take a few seconds to "catch"? The manual says 4 seconds is normal. My friend tells it's normal, but my car is an '88 300E with only 23K miles. I have a Peugeot 505 with CIS-E and it fires immediately. Seems a bit odd, but everything checks out and the car is like new. My first Benz, so I don't know. Help?