Cabrio GLX L4-2.0L (ABA) (2001)
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Pull off supply pipe/hose -1- and collect leaking fuel with a cloth.
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Connect pressure gauge VAG 1318 using adapters VAG 1318/10,/11 and /16.
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Open measured device cut-off tap. (handle points in through-flow direction -arrow-).
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Reinsert fuse 28 (fuel pump) into fuse holder.
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Start engine and run at idle speed.
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Check fuel pressure.
Specification: Approx. 2.5 bar
If the specification is obtained:
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Pull vacuum hose -1- off connection -2-. Fuel pressure must increase to: approx. 3.0 bar.
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Switch ignition off.
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Check for leaks and holding pressure by observing pressure drop on gauge. After 10 minutes there must be a residual pressure of: at least 2.0 bar.
If the holding pressure drops below 2 bar:
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Start engine and run at idle speed.
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Switch ignition off after pressure has built-up. At same time close pressure measured device cut-off tap (handle cross through-flow direction
-arrow-).
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Observe pressure drop on gauge.
If the pressure drops again:
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Check fuel pump non-return valve.
If the pressure does not drop: