Secondary air system
Removing and installing combi-valve
Removing
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‒ With ignition switched off disconnect battery earth strap.
Note:
If necessary the anti-theft coding for the radio must be obtained first.
Vehicles with air conditioner
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‒ Remove ribbed belt .
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‒ Remove power assisted steering vane pump and lay to side; hoses remain connected.
=> Running gear; Repair group 48; Assembly overview: vane pump, hydraulic pipes, reservoir; Removing and installing P.A.S. vane pump
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‒ Removing air conditioner compressor:
=> Heating, Air conditioning; Repair group 87; removing and installing compressor bracket
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‒ Remove retaining clamp(s) from refrigerant pipes.
Warning! The air conditioning system refrigerant circuit must not be opened.
Notes:
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◆ The opening of the refrigerant circuit can only be carried out in workshops, which have trained personnel and the necessary range of tools and workshop equipment.
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◆ To prevent damage to condenser and the refrigerant pipes/hoses, ensure that the pipes and hoses are not stretched, kinked or bent.
Continuation for all vehicles
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‒ Remove pressure hose between combi-valve and secondary air pump.
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‒ Pull vacuum hose off combi-valve.
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‒ Remove dipstick guide tube from intake manifold lower part and combi-valve bracket.
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‒ Unbolt combi-valve from cylinder head and pull out.
Installing
Install in reverse order.
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