2003 Volkswagen Passat electrical problems

In July 2010, the Agency opened PE10-027 to investigate allegations of coil on plug (COP) ignition coil fires in MY2002-2003 VW Passat vehicles.The investigation was upgraded in January 2011 to include all MY2001-2007 4-cylinder VW Passat, gasoline, turbo-charged vehicles.Based on the analysis of VW's response, and including ODI's consumer complaints, ODI has since identified 135 unique engine fire reports attributable to the COP coils.After further review of the details as contained in each report, ODI determined that 43 of the 135 fire reports were actual fire/flame incidents, 83 fire reports were thermal events (smoke, spark, heat or wire melt), and another 9 fire reports were undetermined in severity due to the lack of information.These COP coil fires were characterized as initiated from within the COP coil circuit located at the top of the engine block and below the plastic engine cover.The fires observed were contained in the engine compartment and did not reach into the passenger compartment in contrast to those caused by an overheated catalytic converter examined in ODI?s investigation in 2007 and 2008.There were no reports of crashes or personal injury in this examination.A safety-related defect has not been identified at this time and further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by the federal safety agency that a safety-related defect does not exist.The agency will monitor this issue and reserves the right to take further action if warranted by the circumstancesSee the Closing Report for additional details.

EA11002

ODI has received 11 complaints alleging that a fire started in the engine compartment of the vehicle that may be related to ignition coil failure, and 9 complaints of ignition coil failure that did not result in a fire.Reports state that the vehicle hesitated or lost power, and the check engine or dashboard lights illuminated.The vehicles were repaired by replacing the faulty ignition coil(s). Some of the complaints indicated that the ignition coils were replaced more than once.The scope of PE10-027 focused on Model Years (MY)2002-2003 Passat vehicles.Volkswagen provided data regarding their analysis of the vehicle fires and faulty ignition coils for these vehicles as well as other MY Passat vehicles.ODI needs to further investigate this issue.To facilitate the acquisition and analysis of additional information, this investigation has been upgraded to an Engineering Analysis, EA11-002.

PE10027

The manufacturer notified the federal safety agency on 04-apr-08 that a safety recall action would be initiated to remedy the issue.in june 2008, the manufacturer issued a technical service bulletin (code 26e5/r5) regarding the specific procedures to be employed in this campaign.vehicle owner notification letters were sent beginning approximately june 13, 2008.the campaign was assigned the federal safety agency no. 08v‑156.this recall affects all my 1999-2005, 5th generation gasoline-powered passat sedans and station wagons.approximately 412,000 vehicles are affected.corrective action will consist of installing additional exhaust system heat shielding to mitigate the potential thermal effects of engine ignition problems.based on this action, the subject ea has been closed.

EA07014

Many of the fire reports allege that the vehicle fire was attributed to ignition coil failure.vw provided additional data regarding its analysis of vehicle fires and a detailed description of the three different engines and ignition systems for the subject vehicles.odifinds the need to further investigate this issue.to facilitate acquisition and analysis of additional information, this investigationhas been upgraded to an engineering analysis (ea07-014).

PE07024

By letter received on june 24, 2005, mr. Ronald m. Strickland of raleigh, nc, submitted a petition requesting that the agency investigate the performance of the ignition coil plugs on model year (my) 2000-2003 volkswagen jetta, golf and passat sedans.the petitioner alleges that he had experienced multiple stalling events as a result of one or more ignition coil plugs malfunctioning on his 2002 vw jetta sedan.as a result of the engine stalling, the petitioner experienced a loss of power steering and increased braking efforts when he pulled the vehicle over to the side of the road to control the vehicle.after a few minutes parked on the shoulder he was able to restart the vehicle although the engine operated at reduced power.vw issued a customer satisfaction campaign (csc) on january 31, 2003 to instruct their dealerships to inspect the vehicles for any malfunctioning ignition coil packs and to replace them at no cost to the consumer.consumers were notified to bring their vehicles to their dealerships via owner letters mailed out on june 6, 2003.while vw initially instructed the dealerships to only replace the malfunctioning ignition coil packs, a revised csc was issued to dealerships in december 2003 and january 2004, instructing dealerships to replace all ignition coil packs regardless of their performance.a reminder to the dealerships was sent by vw on april of 2004.although the concerns of the petitioner could theoretically create a safety problem, the risk is very small, due to the engine still running on either 3, 5, or 7 cylinders.there are no reported crashes or injuries due to the alleged defect.once drivers are aware of the problem (loss of power due to one of the ignition coil packs malfunctioning), drivers are able to take precautionary and compensatory measures and still maintain control of their vehicles.in addition, four fires were reported to odi.these were ignition coil burnouts with no additional damage to the vehicle and were localized on top of the engine. During the last 24 months the number of stall and drivability complaints reported to odi has greatly diminished from a peak of 195 in january of 2003 to only 3 in august of 2005.this coincides with the csc released by vw.a safety-related defect trend has not been identified at this time and further use of agency resources does not appear to be warranted.the closing of this investigation does not constitute a finding by the federal safety agency that no safety-related defect exists.the agency reserves the right to take further action if warranted by the circumstances.

DP05004