Recalls: Volkswagen Mk.6 Passat CC
Overview
Manufacturers, or importers, issue recalls for defects or faults which have the potential to cause injury. Generally, manufacturers will inform the original buyers if their vehicle is subject to a recall and of the steps required to remedy the defect or fault. Please note that the recalls below (if any) are for Australian-delivered vehicles only. Furthermore, the number of recalls should not be taken as an indication of a model’s reliability or its safety more generally.
Recalls: Volkswagen Mk.6 Passat CC
2009-11 Volkswagen Mk.6 Passat CC 2.0 TDI: fuel leak from injector line
In February 2012, a recall was issued for Volkswagen Passat CC models fitted with 2.0-litre turbo-diesel engines and manufactured between 2009 and 2011. In these vehicles, the engine’s fuel injection pulses could coincide with the natural frequency of the injector line, producing a resonance that creates additional stress in the fuel line. As a result, the injector line for the number two cylinder could develop small cracks and cause fuel to leak. In the presence of an ignition source, a fire could therefore result. To fix, Volkswagen installed an improved fuel injector line for the number two cylinder and vibration dampers on all of the injector lines (PRA 2012/13017).
2008-09 Volkswagen Mk.6 Passat CC: DSG juddering and loss of power
In June 2013, a recall was issued for Volkswagen Mk.6 Passat vehicles that had six-speed DQ250 Direct Shift Gearboxes (DSGs); AustralianCar.Reviews understands that the recalled vehicles were manufactured from 1 September 2008 to 31 August 2009. In these vehicles, the wiring harness of a temperature sensor within the transmission may have insufficiently crimped connector wires. This could cause the temperature sensor to incorrectly detect high gearbox oil temperatures and activate the clutch protection function – this would illuminate a flashing gear warning light and cause 1) juddering of the vehicle, 2) a reduction in engine torque, and 3) opening of the clutch (as if the gearbox were in ‘neutral’). As such, loss of power to the wheels could pose a hazard to occupants of the vehicle and other road users. For the recalled vehicles, Volkswagen provided a software update for the gearbox control unit (PRA 2013/13625).
2008-12 Volkswagen Mk.6 Passat CC 2.0 TDI: NOx emissions and “defeat device”
In October 2015, a recall was issued for 2008-12 Volkswagen Passat CC vehicles with 2.0-litre EA189 diesel engines. According to the recall notice, ‘the emissions levels may not meet regulatory requirements when the affected vehicle is driven under normal conditions’ (see ‘Diesel engines: NOx emissions “defeat device”‘, below). For the 2.0-litre EA189 engine, a software update will be introduced which takes advantage of improved simulation of air currents inside the air intake system. Volkswagen aims to implement the software update from January 2016; the labour time for installing the updated software is around half an hour. Owners could determine if their vehicles were part of the recall by visiting volkswagendieselinfo.com.au (PRA 2015/14950).
2011-12 model year Volkswagen Passat CC: overheating of starter motor relay
In March 2018, a recall was issued for 2011 and 2012 ‘model year’ Volkswagen Passat CC vehicles. In these vehicles, a bent or broken spring could obstruct the clearance of the spindle in the starter motor relay. Over time, this could cause a blockage, a permanent current supply to the starter motor and overheating of the starter motor relay. If the current supply was not detected, overheating of the starter motor relay could cause local scorching damage and a possible vehicle fire. For the VINs of the recalled vehicles, please see PRA 2018/16669.
2008-12 Volkswagen Passat CC: Takata airbag recall
In December 2018, recall campaign 69Q7 was issued for Volkswagen Passat CC vehicles that were available for sale in Australia from 30 December 2008. These vehicles had Takata airbags and the propellant wafers in these airbags could absorb moisture over time. In the event of airbag deployment, excessive internal pressure could cause the metal inflator housing to rupture and metallic fragments could be projected through the airbag cushion towards vehicle occupants – these fragments posed a risk of serious injury and fatality. For the VINs of the recalled vehicles, please see PRA 2018/17197.
2010-12 Volkswagen Mk.6 Passat CC: Takata airbag recall
In June 2019, recall campaign 69Q7 was issued for Volkswagen Mk.6 Passat CC vehicles. These vehicles had Takata driver’s airbags and propellant wafers inside these airbags could absorb moisture over time. In the event of airbag deployment, excessive pressure in the airbag inflator housing could cause it to rupture and metal fragments could be projected through the airbag cushion and into the vehicle’s cabin. These metal fragments posed a risk of serious injury and fatality. For the VINs of the recalled vehicles, please see PRA 2019/17582.
Problems and faults: Volkswagen Mk.6 Passat CC
Overview
This section identifies potential problems, causes and fixes based on the experiences of owners and repairers, online sources and technical service bulletins. This information is provided solely for reference purposes and AustralianCar.Reviews recommends that only properly qualified persons carry out repairs or modifications. Furthermore, the number of items below should not be taken as an indicator of a model’s reliability or the frequency with which they may occur.
To report a problem or fault to the AustralianCar.Reviews team, please use the Contact Us form. Note that AustralianCar.Reviews does not offer advice on automotive problems or disputes; such enquiries will not receive a reply. For vehicles purchased from dealers after 1 January 2011, please see our Australian Consumer Law fact sheet.
Carbon deposits (build-up) on intake valves
Volkswagen’s naturally aspirated, direct injected petrol engines (such as the Passat CC’s 3.6 FSI) are considered susceptible to accumulating carbon deposits (or build up) on the intake valves. In these direct injection petrol engines, carbon deposits may accumulate on the stem and throat of the intake valve due to:
- the vaporisation of oil which is not trapped by the oil separator; or
- unburned fuel and exhaust gases that escape past the piston rings and enter the crankcase (‘blow-by’).
Since direct injection engines do not spray fuel on the backside of the intake valves, the detergent properties of the fuel cannot remove the carbon build up (as occurs in port injected engines). Symptoms of carbon deposits on the intake valve include difficulty starting the vehicle (hard starting), misfiring and misfire engine codes and reduced engine performance. Potentially, these deposits can result in damage to the catalytic converter and, for turbocharged engines, the turbocharger itself if bits of the deposit break off and enter the exhaust. To remove the carbon deposits, the intake must be removed and the valves cleaned manually. To reduce the incidence of carbon deposits, a common aftermarket measure is the fitment of an oil vapor catch can. The catch can receives dirty air from the crankcase via the Positive Crankcase Ventilation (PCV) valve, filters it and returns it to the intake manifold via the PCV port.
Volkswagen USA: DQ250 DSG fault and extended warranty
In December 2009, Volkswagen USA initiated a ‘Customer Satisfaction Campaign‘ for 2007-09 ‘model year’ Volkswagen vehicles that had six-speed DSG transmissions.
Faulty component and jerky gearshifts
According to Volkswagen, the six-speed DQ250 DSG transmissions of a limited number of 2007-09 ‘model year’ Volkswagen vehicles had a faulty component inside the transmission’s Mechatronic unit. Specifically, the bushings of two solenoid valves inside the mechatronic unit could wear prematurely, causing the clutches inside the transmission to ‘operate less smoothly than before’ and provide jerky gearshifts. According to Volkswagen, the vehicle remained safe to drive since it did not affect forward or rearward motion of the vehicle. As part of the ‘Customer Satisfaction Campaign’, Volkswagen would replace mechatronic units that were identified as faulty by Volkswagen’s diagnostic tool.
Extended DSG warranty
As part of the Customer Satisfaction Campaign, Volkswagen extended the warranty on the DQ250 DSG transmission to ten years or 100,000 miles (160,900 kilometres) – whichever occurred first – from the vehicle’s original ‘in-service’ date. The ‘in-service’ date was defined as the date that the vehicle was delivered to the original purchaser/lessee or, if the vehicle was a demonstrator, the date that the vehicle commenced service.
Under the extended warranty, the Volkswagen dealer was responsible for diagnosing and repairing the DSG transmission at no cost to the owner provided that the vehicle was maintained in accordance with the requirements in the owner’s manual.
Diesel engines: NOx emissions “defeat device”
Australian-delivered Volkswagen Passat CC vehicles powered by 2.0-litre diesel engines that were available for sale from 2008 to 2012 had software in the electronic control module (ECM) that could sense – via sensors measuring the position of the steering wheel, vehicle speed, the duration of the engine’s operation and barometric pressure – when the vehicle was undergoing emissions testing. The ECM would then run a ‘dyno calibration’ to produce lower nitrous oxide emissions during testing. At all other times, the ECM would run a separate ‘road calibration’ which reduced the effectiveness of the emission control system, specifically the selective catalytic reduction (SCR) or the lean NOx trap.
Based on testing conducted by the EPA and the California Air Resources Board (CARB), NOx emissions for the ‘road calibration’ were 10 to 40 times higher than US standards – this led the United States Environmental Protection Agency (EPA) to issue a notice of violation under the Clean Air Act.As a result, these vehicles did not meet the environmental standards claimed by Volkswagen.
Problems and faults: Volkswagen Mk.6 Passat CC
- Vibrations through the brake pedal or steering wheel may be due to lateral run-out of the brake discs (rotors) that require machining or replacement.
- The remote central locking key fob may stop working; if a new battery does not fix the problem, the fob must be replaced.
- If the compass in the instrument panel stops working, the software may require updating.
