Thought I share this with you guys, this came over from Part Info this morning, I thought it could be quiet usefull.

IH

Technology in Focus
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Common problem, unusual cause
Increasing engine temperature generally points towards a low level of engine coolant. However, an interesting case arose in the common VAG 2.0 TDI engine pointing to something completely different. Pierburg investigates…..
Possible engine complaints:
  • Engine temperature increases
  • Engine warning light appears
  • “Shutdown shuddering” after turning of the engine
The investigation:
  • Coolant levels were reviewed and appeared to be normal
  • Engine shuddering pointed towards the air supply system (e.g. air mass sensor, throttle body etc)
  • A diagnostic tool revealed the following fault code: P2102 - Throttle Actuator Control Motor Circuit
  • While there was a fault with the throttle body, it was not responsible for the engine overheating
  • Further investigation revealed that the throttle body and engine fan are protected by the same fuse
  • These complaints may be due to a defective or damaged throttle body
The remedy:
  • Investigate the throttle body to see if this is stuck or contaminated with carbon or oil
  • If this is the case the throttle body is defective and must be replaced
  • If the fuse has blown, replace it and ensure this has the same amp rating as the one removed!
Did you know?
  • In practice a number of different terms are used for throttle bodies such as:
    • Throttle valve
    • Diesel valve
    • Intake manifold throttle
    • Volkswagen would refer to it as an ‘intake manifold flap’
The Range
  • Pierburg throttle bodies are used in more than 25 million vehicles making them one of the top suppliers of throttle bodies
  • The range is available same-day or next-day through FPS
  • For more information visit the F:Drive and Part Info websites or speak to your local FPS branch.
For Technical Bulletins, COSHH/MSDS sheets and technical information such as troubleshooting guides and videos, please visit www.partinfo.co.uk