Loses Antifreeze, Extreme Fuel Consumption?

DENIEL SHONGOV

MEMBER
2018 MERCEDES BENZ 220CDI
2.0L
4 CYL
2WD
AUTOMATIC
242,000 MILES

Hello, my car is an E class 220d w213, it has a problem with two things: The first is that it loses 1 liter of antifreeze every 100 km, there are no leaks! When the car is not driven, the level of antifreeze does not decrease and sits full to the top, but at the moment when the car is driven, the antifreeze decreased by a liter per 100 km, after this problem, a terribly high fuel consumption appeared - 26 l/100 km, and the car started smoking with white smoke coming from the tailpipes.

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Hi,

When you see white smoke from the exhaust, that is usually a good indication that engine coolant is entering the combustion chamber and being burned with the fuel.

The cause is almost always a cylinder head gasket. This would cause all the symptoms you mentioned.

Take a look through this link; it explains common symptoms related to a faulty head gasket:

https://www.2carpros.com/articles/recognizing-the-symptoms-understanding-a-blown-head-gasket-in-your-vehicle

Take a look through this link, it explains what to check:

https://www.2carpros.com/articles/head-gasket-blown-test

Let me know your thoughts and if you have questions.

Take care,

Joe