Maintenance work
Opel recommends replacing the filter insert every 30,000 km. This is sufficient under normal driving conditions; the insert is cleaned periodically.
On the other hand, when traveling on unpaved roads, despite frequent filter cleaning, replacement should be considered much earlier.
The intake air, in cars with a 16V 1.8 or 2.0 l engine, passes through the following units:
1 - upper part of the air filter housing;
2 - lower part of the air filter housing;
3 - Air filter air intake hose;
4 - hot-film air mass flow meter;
5 - Air filter air intake hose;
6 - air intake;
7 - resonator.
After loosening the clamps (arrows), the cover (2) can be removed from the lower part (1). The air filter insert (3) is now accessible.
Removal the air filter housing
Remove the air filter insert.
Where available, remove the crankcase ventilation hose from the cylinder head cover.
[Material copied from this portal: OpelBook.ru]
Also remove the intake air preheating hose.
On vehicles with central injection, remove the intake air preheating vacuum hose from the injection module.
Slightly loosen the mounting nuts at the front and rear of the air filter housing.
Remove the air filter housing from the engine compartment.
When installing the air filter housing, first attach it to the front
Press the air filter down and screw it on.
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