Volkswagen Golf Service & Repair Manual: Vacuum system

Volkswagen Golf Service & Repair Manual / Brake system / Brakes, hydraulics, regulator, servo / Vacuum system

Vacuum pump for brake servo, diesel vehicles

Vacuum pump for 4-cylinder diesel engine (1.6 l, common rail):

The vacuum pump is installed in the oil pump.

–	Removing and installing vacuum pump/oil pump → Rep. gr.17.

Checking non-return valve

Test procedure

–	Carefully pull non-return valve with vacuum line -1- out of brake servo.

–	Blow small amount of air through non-return valve -1- in one direction first, then in other direction.

Air must pass through non-return valve -1- in -direction of arrow-.

The non-return valve -1- must remain closed in the opposite -direction of arrow-. If this is not the case, renew non-return valve or, if necessary, complete vacuum line.

Note

When installing the vacuum line with non-return valve, ensure the correct installation position relative to the brake servo.

Checking non-return valve

Removing and installing brake master cylinder, RHD vehicles

Note If there are problems with the brake servo, first check the brake servo vacuum system → Chapter. Special tools a ...

Removing and installing vacuum sender -G608

Note The vacuum sender -G608- is only installed in selected petrol engines. Removing ...

Other materials:

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