Ford Fiesta manual transmissions (iB5 five-speed transmission) are filled with transmission oil that does not require replacement for a long time. Only in CTX automatic transmissions, the working fluid must be replaced every 45,000 km, including the oil filter. Changing transmission oil without special equipment is quite a labor-intensive task, so it is better to leave it to a service center or auto repair shop. In manual transmissions, modern transmission oils work for a long time, since the oil in them is subject to the process of wear and aging differently than in the engine. And if your car's transmission does not consume transmission oil, you can not worry about gearbox maintenance. Otherwise, it is necessary to check the transmission oil level and eliminate the resulting leak in the gearbox as soon as possible. Maintenance of CTX gearboxes consists, first of all, in checking the level of the working fluid.
Synthetic universal oil 75W-90 is poured into manual gearboxes (in automatic gearboxes CTX — working fluid WSD-M2-C199A). Ford dealers always have oils of the corresponding specifications. At the factory, 2.8 liters of transmission oil are poured into a five-speed gearbox, and 4.3 liters of working fluid into an automatic gearbox.
SEQUENCE OF WORKS
1. Raise the vehicle to a horizontal position and securely support it on supports.
2. Remove the lower engine guards.
3. Use an Allen key to unscrew the gearbox housing filler plug. If a little transmission oil leaks out, tighten the plug again securely. If oil does not leak out, check the oil level by inserting your little finger or a piece of wire bent at a right angle into the inspection hole: the oil level should be 10–15 mm below the edge of the hole.
4. If the oil level is normal, replace and tighten the plug securely.