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Main Astra Corsa Insignia Kadett Omega Vectra Zafira Others Articles
Astra F (1991-1998, petrol) Astra G (1998-2004, petrol) Astra G (1998-2004) Astra H (2004-2009) Astra J (2009-2015, petrol)
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  • Dosing valve — removal and installation

Dosing valve — removal and installation (Opel Astra G)

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1. Raise the front of the vehicle.

2. To reduce fluid loss, tightly close the tank cap, placing a piece of plastic film underneath it.

3. Loosen the bolt and remove the spring axle (see photo), mark the position of the clamp, unscrew the clamp bolt and remove the limiter. Remove the spring from the valve lever.

3. Loosen the bolt and remove the spring axle (see photo), mark the position of the clamp, unscrew…


4. Unscrew the nuts of the fittings and disconnect the tubes from the valve.

5. Loosen the bolts and remove the valve.

6. There are 3 types of valves installed on cars. The new valve must exactly match the one being replaced.

7. When assembling, there should be no passengers in the passenger compartment, the tank should be half full, and the tire pressure should be normal. On models with adjustable rear suspension height, the residual pressure in the pneumatic system should be at least 0.8 atm. Check the serviceability of the valve. When you press the pedal, the valve stem should extend, otherwise replace the valve. If the valve lever has moved away from the limiter, move the lever until it stops at the limiter and release it, then install the spring so that all the slack is taken up in it, and tighten the clamp bolt.


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Opel Astra G: Brake system
Next articles

Anti-lock ABS and TC brake system assemblies and units — removal and installation
Anti-lock braking system and TC-system of sensor control of adhesion of front drive wheels with the road surface — general information
Parking Brake Warning Light Switch — Removal and Installation
Brake light switch — removal, installation and adjustment
Handbrake cables — removal and installation
Handbrake lever — removal and installation
Features of operation of the brake system


See similar ones from other Opel car manuals:
▶ Checking and adjusting valve clearances on a diesel engine Opel Corsa B (1993-2000)
▶ Checking the opening pressure of the steam valve Opel Insignia A (2008-2017)
▶ Technical characteristics of the valve timing mechanism Opel Kadett E (1984-1995)
▶ Valve clearances — checking and adjustment Opel Omega A (1986-1993)
▶ Hydraulic valve lifters — inspection Opel Vectra A (1988-1995, petrol)
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Astra J (2009-2015, petrol) 
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