Checking the oil level in the differential
The oil in the rear axle differential case does not need to be replaced. The oil level should be checked every 20,000 km.
Make a short trip to allow the oil in the differential case to reach normal operating temperature.
Raise the car and support it.
Remove filler plug (left arrow) using socket wrench SW 14.
The illustration shows the differential on post-February 1981 models. The right arrow points to the drain plug.
Slow flow of oil from the filler hole indicates its correct level. In doubtful cases, check with a finger whether the oil reaches the lower edge of the hole. If the oil does not reach the lower edge of the hole, add it using a pump or syringe.
Attention: In case of excessive oil consumption, its cause must be determined and eliminated.
Oil type: Hypoid-Geai Oil SAE 90. Use the oil recommended by the manufacturer.
Attention: Gear oil has a rather thick consistency, so it should be added in small portions. taking breaks. Place an oil pan under the differential to catch spilled oil.
Tighten the filler plug.
Checking the drive shaft covers
Raise the car and support it.
Inspect covers and surfaces near them for traces of grease.
Check the tightness of the clamps.
Using a lamp, inspect the rubber for cracks. Cracked covers must be replaced.
If the casing is pulled into the hinge by vacuum or there are other defects in it, the casing must be replaced.
Checking the oil level in the self-levelling system
On models equipped with a self-levelling rear suspension, the oil level should be checked every 20,000 km with the engine off.
Pull out the dipstick (2a), wipe it with a clean cloth and reinsert.
Remove the dipstick again and check the oil level.
When the tank is full and the machine is loaded normally, the oil level should be between the maximum (b) and minimum (With) dipstick marks.
When the machine is fully loaded, the oil level should be at the minimum mark. If necessary, add oil using a funnel and a narrow tube. Use only the oil recommended by the manufacturer.
The difference between the minimum and maximum oil levels is approximately 0.6 liters. The total capacity of the hydraulic system is about 3.5 liters.