To start with dont wash the car and leave it out in low temperatures, but i suppose you did´t expected it go that low. In winter when i sometimes can expect temeratures as low as -20 i try not to wash the car. When i wash it i always try to leave it in my garage with the doors open for at least 24 hours to let it dry. Then i use a good lock oil whithout deicing component and silicon oil on the rubber parts. If the locks have frozen i put hot water in a plastic bag and hold it against the parts i want to defrost (use gloves not to burn your self) works almost every time. Never put more water on the parts it makes it just worse.
I also use an electrical engine heater and a compartment heater when its freezing outside. It saves the engine and its nice and warm to get into the car.
JK
164 Q4
I also use an electrical engine heater and a compartment heater when its freezing outside. It saves the engine and its nice and warm to get into the car.
JK
164 Q4