It must be checked annually, but not less than every 15,000 km. Every 3 years or not later than 45,000 km, the oil in the gearbox must be replaced.
When operating the vehicle in difficult conditions (for example, when frequently towing, as a taxi, in mountainous or very dusty areas) aTF oil in the gearbox must be replaced every 30,000 km.
Note: The dipstick is located in the engine compartment. Oil is added here.
Attention! When carrying out any work on the automatic transmission, maintain maximum cleanliness.
Examination
Place the vehicle on a flat, horizontal surface without any load; engage the parking brake.
Set the gear selector lever to all positions in turn (P-R-N-D-3-2-1).
Set the lever to position "P".
Start the engine.
The check can be carried out with the gearbox operating both in a cold and warm state. Since the oil level in this case will be different, there are two scales on the oil dipstick: one corresponds to a warmed-up gearbox (oil temperature 80°C or 94°C), and the other to a cold one (oil temperature 20°C) (see fig.).
The gearbox oil level can be checked without preheating (at an ambient temperature below 35°C) after 1 minute of engine idling. The check should not last more than 2 minutes. Remove the dipstick and wipe it with a lint-free cloth (better with a piece of leather), and then completely immerse it in oil, remove it and read the readings. The oil level is normal if it reaches the "MAX" mark on the scale corresponding to a cold box (20°C).
Checking the oil level in a preheated gearbox is similar to the above. Only in this case the oil level is considered to be normal if on the scale corresponding to the warmed-up gearbox it is between the "MIN" and "MAX" marks. The gearbox warms up to operating temperature when driving at high speed for a distance of at least 20 km.
Oil is added through the dipstick hole. It is recommended to use a clean funnel with a fine-mesh filter for filling. The amount of oil to be added is determined as follows. On the "20°C" scale, the volume of oil between the "MAX" mark and 5 mm below is 0.25 l, and on the "80°C" scale, the volume of oil between the "MIN" and "MAX" marks is 0.5 l.
Caution! Do not add too much oil; otherwise, the gearbox may malfunction. Drain or pump out excess oil.
Check the appearance and smell of old oil. A burning smell is a consequence of burnt brake bands. Contaminated oil can cause problems with the gearbox.
Attention! Only ATF oil with the designation Dexron II (Opel catalog number N1940699 (90350341)) may be used.
Note: All approved ATF oils can be mixed with each other. The use of any additives is not allowed.
Attention! The engine cannot be started if the gearbox is not completely filled!
After checking and (if necessary) to adjust the oil level, insert the dipstick back into place.
Press the brake pedal and slowly and consistently shift the gear selector lever to all positions. Then return the lever to the "P" position and check the oil level again.
Turn off the engine.
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