audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

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Disconnect electrical harness connectors -4- from ignition coils at left cylinder head. 

NOTE:  Disregard the other items.

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Disconnect electrical harness connectors -1- from ignition coils at right cylinder head.

NOTE:  Disregard the other items.

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Connect e.g. V.A.G 1527 B voltage tester as follows: 

Harness connector

Measure to 

Terminal

2

B+ 

4

B+ 

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LED must light up.

If LED does not light up:

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Check the wire connections for open circuit. 
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Specified value: Wire resistance max 1.5 Ohm

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If necessary, repair wire connection.

If LED lights up:
 
Checking voltage supply

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