Note: Checking and adjusting the level should be carried out only in case of detection of oil leaks from the manual transmission. In other cases, they are not necessary.
32. First of all, it is necessary to make a thorough visual inspection of the box for possible oil leaks. To do this, clean the body of the box from dust, dirt and traces of oiling, sprinkle possible leaks with talcum powder. The most likely leaks are:
- Mating surfaces of the engine and manual transmission;
- Seals of the primary shaft of the manual transmission;
- Filling hole plug;
- Drain plug.
Before the control check, it is necessary to warm up the manual transmission oil well during a short (up to 30 km) trips.
33. Drive the car onto a flyover or inspection hole, or jack it up and place it on supports in a strictly horizontal position. If an oil leak is detected, first eliminate its cause, and then adjust the oil level in the manual transmission.
34. Thoroughly wipe the surface of the box crankcase around the control plug. If necessary, dismantle the protective casing of the engine compartment. The inspection hole is located on the left rear of the gearbox (behind the drive shaft) (see resist. illustration).
4.34. The location of the control hole manual transmission
35. To check, it is necessary to unscrew the plug of the control hole and, using a wire bent at 90°, measure the oil level in the gearbox crankcase - the oil level should not fall below the edge of the control hole by more than 20 mm (minimum allowable level).
36. If necessary, the level is adjusted using a special syringe / lubricator through the hole for installing the sensor-switch of the reverse lights (Manual transmission F13/F17/F17+), or through a special hole located on top of the gearbox housing (Manual transmission F23) - disconnect the wiring connector (with appropriate equipment) and unscrew the sensor/plug. On models equipped with an Easytronic robotic gearbox, to adjust the oil level, it is necessary to unscrew the crankcase ventilation breather located on the gearshift cover. Oil should be filled in until its level reaches the lower edge of the control hole.
Note: Transmission oil has a high viscosity - it takes time for it to be evenly distributed throughout the entire volume of the gearbox housing. Make adjustments in several stages, do not fill in too much oil at once, periodically check its level. If oil starts to leak over the edge of the check hole, allow the excess to drip off.
37. At the end of the adjustment, screw the control hole plug into place with a force of about 4 Nm and tighten it with a wrench for about 1/8, maximum 3/8 of a turn (45°-135°). On the robotic box, tighten the breather with the same force. When installing the sensor-switch of the reversing lights, first replace the gasket, and tighten it with a force of 20 Nm. For the F23 transmission, the tightening torque of the plugs for both the control and filler holes is 35 Nm.
38. For crankcase ventilation, a special breather with a cover is screwed into the gearbox housing. Each time you inspect the manual transmission, check the breather cap - it should be loosely seated on the breather. When the breather is clogged (fixed cover) increased pressure is created in the crankcase of the manual transmission, which can cause a malfunction of the manual transmission, as well as lead to extrusion of seals and leakage of transmission oil.
39. After completing the work, remove traces of oil from the gearbox, remove the tool from under the car and lower the latter to the ground if it was jacked up or raised on a lift. During the first trips, check the box for leaks.
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