Maintenance work
In a gearbox, lubricants are not consumed in the same way as in an engine, but they can also leak through leaky areas. If no oil-soaked crust of dirt forms on the gearbox housing, then this maintenance item is no longer necessary. Otherwise, check the oil level. The level/oil filler plug is located on the 1.6 liter displacement models on the left in the direction of travel, and on the 1.8/2.0 displacement Vectra on the right at half height of the gearbox housing next to the drive shaft.
- Raise the car in a horizontal position.
- Unscrew the oil level/oil filler screw.
- If a little oil is already poured out, then the oil level is normal.
- Otherwise, insert your little finger or a piece of wire bent at a right angle into the threaded hole and check if the lubricant level reaches the lower edge of the hole: the oil level is sufficient.
- If there is a greater lack of oil, top up at a petrol station or workshop with the prescribed grade of gear oil.
Left: so the oil filter is unscrewed (1) band key (2). The photo shows the oil filter of an 8-valve engine with a displacement of 1.6 liters.
On right: filter shown here (arrow) engine 1.6 l 16V.
Left: on Vectra with 1.8/2.0 liter engine oil level/oil filler plug (arrow) The manual transmission is accessible from below under the bottom of the car.
On right: level/oil filler screw (arrow) in a Vectra with a 1.6 liter engine, it is located on the left side of the gearbox. It is accessible from the side of the wheel arch.
Tip: It is a real test of patience to pour very viscous gear oil through the side hole using amateur tools. For this purpose, a funnel with an angled drain hole or a soft plastic bottle with a curved mouthpiece is suitable, squeezing which you can pump preheated oil.
Proper grade gear oil
The durable oil in a manual transmission is replaced only after the transmission has been repaired. The filling volume, depending on the gearbox, ranges from 1.6 to 1.9 liters. Because gear oil is subjected to high pressures, Opel requires oils with a viscosity grade of SAE 80. They must meet the following specifications:
- APIGL4
- GM-4753 M
- MIL-L-2105 (A)
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