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 a * are checked via the self diagnosis.
• ◆ Before carrying out repairs and for fault finding, interrogate the fault memory.
  , interrogating and erasing fault memory

Safety precautions => Page 28-7

Test data, spark plugs => Page 28-8

• Spark plug, 30 Nm
• ◆ Remove and install with 3122B
• ◆ Type and electrode gap
  => Page 28-8
• H.T. cable
• ◆ Check for continuity
• Spark plug connector
• ◆ 4...6 kω
• ◆ Only pull off using pull ring -4 -
• Pull ring
• O ring
• ◆ Renew if damaged
• Ignition distributor with No. 1 Cyl. recognition sender (G145)* or Hall sender (G40)*
• ◆ Dismantling and assembling => Page 28-5
• ◆ Checking Hall sender or No. 1 Cyl. recognition sender => Page 28-10
• ◆ Rotor arm:
  Renewing => Page 28-18 ,
  Identification: R1,
  Resistance: 0.6...1.4 kω

• 10 Nm
• No. 1 Cyl. marking
• Dust cap
• Suppressor
• ◆ 0.6...1.4 kω
• Connector
• Ignition transformer output stage (N157)
• ◆ Checking => Page 28-11
• ◆ Only bolted version can be individually replaced
• 10 Nm
• Ignition transformer (N152)
• ◆ Checking => Page 28-11
• Earth strap
• 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
• 3 pin connector
• ◆ For knock sensor 1: Brown
• ◆ For knock sensor 2: Black
• ◆ Contacts gold plated
• ◆ On central connector bracket, cylinder head, left
• Knock sensor 2 (G66)*
• ◆ On left in direction of travel
• 20 Nm
• ◆ Tightening torque influences the function of the knock sensor
• Knock sensor 1 (G61)*
• ◆ On right in direction of travel