Volkswagen Workshop Service and Repair Manuals

Notes:

• ◆ Only the components which specifically relate to the ignition system are dealt with here. For the other components of the injection and ignition system => Repair group 24.
• ◆ The injection and ignition system control unit is equipped with self diagnosis.
• ◆ Components marked with * are checked via the self diagnosis.
  , interrogating fault memory
• ◆ For trouble-free operation of the electrical components a voltage of at least 11.5 V is necessary.
• ◆ During some checks it is possible that the control unit will recognise and store a fault. Therefore after completing all checks and repairs the fault memory must be interrogated and if necessary erased.
  => Page 01-7 , interrogating fault memory

Safety precautions => Page 28-6

Test data, spark plugs => Page 28-7

• Earth strap
• Connector
• 10 Nm
• Ignition transformer output stage (N157)
• ◆ Checking => Page 28-14
• ◆ Only bolted version can be individually replaced
• Ignition transformer (N152)
• ◆ Checking => Page 28-13
• Suppressor
• ◆ 0.6...1.4 kω
• Screening cap
• Distributor cap
• ◆ Check for cracks and signs of tracking
• ◆ Check contact wear
• ◆ Clean before fitting
• ◆ Check carbon brush for wear and freedom of movement

• Rotor arm
• ◆ Marking: R1
• ◆ 0.6...1.4 kω
• Dust cap
• No. 1 Cyl. marking
• Ignition distributor with Hall sender (G40)*
• ◆ Dismantling and assembling => Page 28-5
• ◆ Checking and adjusting ignition timing => Page 28-8
• ◆ Checking Hall sender
  => Page 28-11
• O ring
• ◆ Renew if damaged
• 20 Nm
• ◆ Tightening torque influences the function of the knock sensor

• Knock sensor 1 (G61)*
• ◆ Engine code AEA only
• ◆ Sensor and connector contacts are gold-plated
• Spark plug, 25 Nm
• ◆ Type and electrode gap
  => Page 28-7
• Spark plug connector
• ◆ 4...6 kω
• H.T. cable
• ◆ Check for continuity