Astra F
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Brakes General Information When removing the wheels of the vehicle, mark position to wheel stroke. This marking is to be observed when installing. Installation is always carried out with the prescribed torque. Remove the underride protector if required for operations which have to be performed from below the vehicle. When installing, ensure the tightening torque of 20 Nm/ 15 lbf. ft. is correct. Always disconnect the battery ground cable prior to operations. On bolts inserted with locking compound, the thread must be cleaned with the relevant tap. Insert the new bolts with locking compound. On micro-encapsulated but re-usable bolts, likewise clean threads and insert with locking compound. Ensure when installing that there is no dirt between the brake disc and the wheel bearing unit. Furthermore, the contact surfaces must be smooth and free of burrs. When replacing brake discs, new brake linings are to be installed in any case. Use genuine Opel brake linings only. Always replace all brake linings or shoes on one axle. When brake linings are replaced, the owner of the vehicle is to be informed that drastic braking must be avoided for the next 200 km/125 miles. When disposing of brake fluid, observe the relevant environmental safety regulations.
General Information (Continued) The rear brake calliper must not be disassembled. Material-removing operations on pistons and drilling are not permitted. Corroded pistons at the brake calliper, wheel brake cylinder and master brake cylinder may only be cleaned with brake fluid or alcohol. No sharp-edged tools may be used in operations on these components. Before processing cements and sealing compounds etc., check the "best before" date. Products on which this date has elapsed must not be further processed. Special service tools can be found in the "Opel/Vauxhall Special Service Tools" catalogue; other tools and equipment required can be found in the "Opel/Vauxhall Workshop Equipment" catalogue. Wiring harnesses and wiring troughs which have to be released or removed during repair work must be re-fastened in their respective original positions using genuine parts from "Aftersales" (cable ties, clips, wiring trough brackets etc.).
The mechanic is responsible for ensuring that all operations are carried out according to the regulations of the local authorities concerning health, accident prevention and environmental protection.
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Important! 