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Lots of white smoke from exhaust after running without coolant cap.

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Old 08-05-2017, 01:01 AM
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E63 2009
Lots of white smoke from exhaust after running without coolant cap.

Hi, Can't believe I forgot to put the coolant cap back on and drove the car for around 50 Kms when suddenly engine started to loose power. I stopped the car and realised my stupid mistake. The coolant was almost completely gone. I switched off the engine immediately (the temperature gauge at that time was still in the middle/normal level). I called my friend to come with the coolant. Topped up the coolant after almost 1 hr. Started the engine and it was idling smoothly but huge clouds of white smoke started to come out of the exhausts. I left it to idle for around 10-15 mins. Checked the temperature gauge and it was still normal also no change in the coolant level. I decided not to take any risk and called recovery to take it to the garage. Garage is only going to open after the weekend. Just want to know if I haven't blown out the gaskets or is it something else as the engine was idling fine and the temperature remained normal.
Old 08-05-2017, 01:30 AM
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2005 E55 AMG, 1991 MR2
I would do a compression test. Blowing the head gasket is a real possibility.
Old 08-06-2017, 01:15 PM
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E63 AMG 2007
What's the oil look like? Sorry to hear, hope it works out.

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