Fuel consumption increased at the Mercedes E-Class (W211) 2.2 l CDI in cold weather

A sharp increase in fuel consumption at the Mercedes E-Class (W211) 2.2 l CDI in cold weather should check a number of indirect factors that affect the cost. The tyre pressure and air filter condition should be measured. The diesel fuel consumption may increase if the thermostat works incorrectly-the operating temperature at which the machine is driving must be 90 degrees. If this parameter is significantly reduced, the thermostat must be diagnosed and replaced.