Technical Bulletin

Autodata Looks Into Issues With Kia Sorento, Peugeot RCZ And VW Passat CC

Autodata looks into three known issues with Kia Sorento, Peugeot RCZ and Volkswagen Passat CC.

Autodata, the leading provider of automotive technical information, shares manufacturer verified fixes to common problems found in motor vehicles. Visit to learn more about its online tools for workshops. Autodata is part of the Solera Group of companies.

Peugeot RCZ


A customer of ours has a 2013 Peugeot RCZ and they are complaining of a lack of power, poor starting and the engine malfunction indicator lamp (MIL) is illuminated. There are trouble codes stored relating to the variable valve lift system. Have you come across these symptoms on this engine before?


The symptoms you describe are known to affect the RCZ with EP6CDTR (5FG) engine code and it is due to damage of the variable valve lift shaft drive gear.

Check the condition of the variable valve lift actuator and replace if necessary.


Inspect the variable valve lift shaft drive gear for damage (Fig. 1). If damage has occurred to the variable valve lift shaft drive gear, a new cylinder head is required to rectify this fault.

KIA Sorento

We are having trouble diagnosing a clonking noise on a 2011 Kia Sorento when moving off or changing from forward direction to reverse direction. We have heard the clonking noise on a few occasions but cannot source the cause of the fault in the workshop. Can you help?


Yes, we are aware of this fault affecting Sorento models up to 10/05/12. The noise is due to movement between the front hub and the front wheel bearing.

Remove the driveshaft from the front hub. Remove and discard the plastic washer (if fitted) between the front hub and the front wheel bearing (Fig. 2).


Thoroughly clean area. Fit a new metal washer, available from Kia parts department, to the front hub. Refit driveshaft. Repeat the procedure for the opposite side. Carry out manoeuvres in the vehicle to confirm that the clonking noise has been resolved.

Volkswagen Passat CC


We are servicing a 2009 Volkswagen Passat CC and the customer has complained of intermittent operation of the front wipers. The wipers work OK while the vehicle is with us. Is this a fault that has been reported by other Passat CC owners?


The fault you describe has been reported by other Passat CC owners and it is due to a poor earth connection for the windscreen wiper motor. Also the CAN data bus line in the wiring harness for the windscreen wiper motor can be damaged causing an open circuit.


Locate and check condition of the earth point in the plenum chamber (Fig.3).

Clean/tighten the earth point. Inspect the windscreen wiper motor wiring harness for damage and repair as necessary.

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