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HOMESERVICE MANUALSVOLKSWAGEN2012JETTA TDI, 4D SEDAN, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 207 (2.0L - IGNITION/GLOW PLUG SYSTEM - ENGINE CODE(S): CBFA & CCTA (HATCHBACK))28 IGNITION/GLOW PLUG SYSTEMDESCRIPTION AND OPERATIONIGNITION SYSTEM COMPONENT OVERVIEW
2012 Volkswagen Jetta TDI, 4D Sedan, Standard Trans

Ignition System Component Overview

2012 Volkswagen Jetta TDI, 4D Sedan, Standard TransSECTION Ignition System Component Overview
WARNING: This page is about a different car, the 2013 Volkswagen Beetle and 2012 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Assembly Overview: Ignition System Component
GWWS28-0144Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Knock Sensor 1 -G61-
    • On the front of the cylinder head under the intake manifold.
    • Contacts are gold plated.
    • For the electrical connector, refer to Fig 4.
    • Removing and installing, refer to Knock Sensor 1 -G61- .
  2. Bolt
    • 22 Nm
    • The tightening specification influences the function of the knock sensor.
  3. Ignition Coil with Power Output Stage
    • Ignition coil 1 with power output stage -N70-.
    • Ignition coil 2 with power output stage -N127-.
    • Ignition coil 3 with power output stage -N291-.
    • Ignition coil 4 with power output stage -N292-.
    • Removing and installing, refer to IGNITION COILS WITH POWER OUTPUT STAGES .
  4. Spark Plug
    • 25 Nm
    • If the spark plugs are replaced, grease the ignition coil with power output stage. Refer to Installing .
    • Note the change intervals, refer to the Maintenance Intervals.
    • Type and electrode gap, refer to TEST DATA AND SPARK PLUGS .
    • Remove and install using the spark plug removal tool 3122 B.
  5. O-ring
    • No replacement part available.
    • Replace if damaged.
  6. Engine Speed Sensor -G28-
    • On the left front lower side of the cylinder block, next to the oil separator. Refer to Fig 3.
    • Removing and installing, refer to Engine Speed Sensor -G28- .
  7. Bolt
    • 9 Nm
  8. Camshaft Position Sensor -G40-
    • Bolted to the front of the cylinder head cover. Refer to Fig 2.
    • For the electrical connector, refer to Fig 4.
Fig 2: Camshaft Position Sensor G40 Electrical Connector
GWWA24-10434Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. CMP sensor
Fig 3: Engine Speed (RPM) Sensor G28
GWWA24-10426Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Engine Speed Sensor
Fig 4: Camshaft Position Sensor G40 / Intake Manifold Runner Position Sensor G336, Knock Sensor (KS) 1 G61 & Fuel Injectors 8-Pin Harness Connector Electrical Harness Connectors
GWWA24-10427Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. CMP sensor
  2. Knock sensor 1
  3. 8 pin connector for the fuel injectors
RENDER: 1.0x

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