Emergency funds should not be used for car repairs and service. A separate budget category should be set up specifically for car repairs and service. I knew this and still used money from my emergency fund to pay for new front and rear brakes on my van. I did not set aside enough money for long enough to cover this expense that I knew was forthcoming.
Since I know I will need to have my shocks replaced and new tires very soon I will need to set aside some money in my budget to cover these expenses.
Word of advice: set enough money aside for car repairs and service on a monthly basis. My plan is to set aside $100 a month in a separate category in my budget to cover these expenses versus taking money out of my emergency fund to pay for them.