2012 Volkswagen Golf TDI Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2012 Volkswagen Golf TDI

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2012 Volkswagen Golf TDI Problems

Clunking Noise from Floorboard Under Acceleration

Drivers of the Volkswagen Golf TDI may experience a clunking noise associated with acceleration from a stop, or downshifting for hard acceleration. This will also be accompanied by a light impact sensation under the drivers feet. Drivers may also notice unexplained changes to their front end alignment while driving. 

This issue is commonly called " VW Subframe Clunk", and is caused by the gradual stretching of the bolts that secure the subframe to the vehicle. The subframe is a large plate that secures to the bottom of the engine bay, and connects the body of the car to the engine and suspension. Over time, the bolts that secure the subframe stretch, allowing the subframe to move and hit the bottom of the car when accelerating.

There are many aftermarket kits that can be installed to correct the issue, and Volkswagen has issued a correction including better bolts, and spacers which fit between the subframe and the car.

The Mechanical Fuel Pump May Fail Unexpectedly

The 2009-2012 Volkswagen Golf TDI 2.0L engine is equipped with a mechanical high pressure fuel pump (HPFP) which delivers highly pressurized fuel needed to run the clean diesel engine. This pump is know to fail at random in both new and used Golf TDI models leaving the vehicle running very roughly, with very little power, unable to start, and/or OBD code P0087  

The most common causes of failure are fueling with gasoline or biofuel, and a factory defect in the HPFP. 

When the HPFP fails, it sends fragments of metal through the entire fuel system, necessitating replacement of every component, with exception of the gas tank. 

To help prevent this issue, ensure you are using only diesel fuel, and highly trafficked gas stations.

Additionally, Volkswagen has issued an extended warranty of 10 years/120,000 miles for this condition on select vehicles.   

Glove Box Hinges fail frequently

The glove box hinges (made of plastic) on our 2000 Golf TDI have failed three times in the 10 years we have owned the car.

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2012 Volkswagen Golf TDI Recalls

Potential Diesel Fuel Leak

On the 2.0L TDI common rail Diesel engine/clean Diesel engine, fuel injection pulses could coincide with the natural frequency of injector line #2. This resonance creates additional stress on the fuel line. Small cracks could develop in the #2 injector line, resulting in a Diesel fuel leak. A fuel leak always increases the risk of a fire. Dealers will install an improved #2 fuel injector line and install vibration dampers on all of the injector lines to correct this concern. The Volkswagen/Audi recall number is 23J9/V5.

 

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