2018 Mustang Owner's Manual

Maintenance

If the coolant temperature gauge moves fully into the red zone, or if the coolant temperature warning or service engine soonmessages appear in your information display, do the following: 1. Stop your vehicle as soon as it is safe to do so. Fully apply the parking brake, shift into park (P) or neutral (N). 2. Leave the engine running until the coolant temperature gauge needle returns to the normal position. After several minutes, if the temperature does not drop, follow the remaining steps. 3. Switch the engine off and wait for it to cool. Check the coolant level. 4. If the coolant level is at or below the minimummark, addprediluted coolant immediately. 5. If the coolant level is normal, restart the engine and continue. MANUAL TRANSMISSION FLUID CHECK 1. Clean the filler plug. The filler plug is on the right-hand side of the transmission.

3. The correct fluid fill level is 0.0–0.1 in (0–3 mm) below the bottom edge of the filler hole. 4. Add fluid through the filler hole. 5. Install the filler plug. 6. Tighten the filler plug until you feel a strong resistance. Only use fluid that meets Ford specifications. See Capacities and Specifications (page 286). AUTOMATIC TRANSMISSION FLUID CHECK If required, have an authorizeddealer check and change the transmission fluid at the correct service interval. See Scheduled Maintenance (page 433). The automatic transmission does not have a transmission fluid dipstick. Refer to your scheduled maintenance information for scheduled intervals for fluid checks and changes. Your transmission does not consume fluid. However, if the transmission slips, shifts slowly or if you notice a sign of leaking fluid, contact an authorized dealer. Do not use supplemental transmission fluid additives, treatments or cleaning agents. The use of these materials may affect transmission operation and result in damage to internal transmission components. BRAKE FLUID CHECK WARNINGS Do not use any fluid other than the recommendedbrake fluidas thiswill reduce brake efficiency. Use of incorrect fluid could result in the loss of vehicle control, serious personal injury or death.

E174951 2. Remove the filler plug.

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Mustang(CZG)Canada/UnitedStatesofAmerica,VehiclesBuiltFrom:07-08-2017, JR3J 19A321AAenUSA,Editiondate:201707,FirstPrinting