The E420 left me on the side of the road yesterday morning. In one and a half years this is the first time I've had to post on tech help since the car has been pretty trouble free. I was driving in traffic, very slow (QEW in rush hour means 10mph max in someplaces) when I heard a very juted thunk and then steam started pouring out from under the hood. I quickly pulled off the highway (by the time I got off the low coolant light had come on, but engine temp had not risen eyt)and turned off the car. While I waited for raodside assistance I watched all the coolant empty out of the car under the front bumper. It wouldn't have been so bad except for the four or five people who made a point of slowing down to laugh at me on the side of the road. Anyways, car was towed to the dealer yesterday where it still sits. You can clearly see a circle cut into the back of the rad where the fan faces it in about the same size as the center part of the fan. It looks like the fan jumped forward, cut the rad and then went back to where it should be.

Any ideas on the cause of this. It will be repaired under Signature Class (Starmark in US) warranty, but I am pretty leary that if it happened once it may happen again.

Thanks,

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Jason Priest
1999 E430
1995 E420 - retired
1986 420SEL - retired