2.0t TSI Engine Common Problems to Look out for on VW and Audi's
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The 2.0T TSI engine is found in almost all main stream VW models between 2008.5 and 2014. This is not to be confused with the Audi TFSI (valve lift) engine found in many of the Audi models. While these 2 engines share some similarities they also have plenty of differences. If you have an earlier model VW or Audi 2.0T you likely have the FSI engine and you can find the FSI Common Problems HERE.
We put together this list of common problems to look out for, so anyone with a 2.0t TSI engine can be prepared.
VW and Audi Models with the 2.0T TSI engine
VW MK5 GTI 2.0T TSI 2008.5-2009
VW MK6 GTI 2.0T TSI 2010-2011-2012-2013-2014
VW MK5 Jetta 2.0T TSI 2008.5-2009-2010
VW MK6 Jetta 2.0T TSI 2011-2012-2013-2014-2014
VW B6 Passat 2.0T TSI 2008.5-2009-2010
VW CC 2.0T TSI 2009-2010-2011-2012-2013-2014-2015
VW EOS 2.0T TSI 2008.5-2009-2010-2011-2012-2013-2014
VW Tiguan 2.0T TSI 2009-2010-2011-2012-2013-2014-2015
VW Beetle 2.0T TSI 2012-2013-2014-2015
Audi A3 2.0T TSI 2008.5-2009-2010-2011-2012-2013-2014
Audi MK2 TT 2.0T TSI (not TTS) 2008.5-2009-2010-2011-2012-2013-2014
If you have having misfire problems on your VW or Audi 2.0T TSI engine ignition coils and spark plugs should be the first place you look. We also have a more detailed write up on Diagnosing VW and Audi 2.0T TSI misfires HERE
If you have a loud whistling noise coming from your 2.0t TSI engine you might have a bad PCV valve. A bad PCV can also cause Fault code 0171 System Too Lean, as well as others. Take a look HERE for more info on the TSI PCV issues
The intake flap motor controls a flap which is inside the TSI intake manifold. This motor can often sporadically throw faults for P2015. Take a look here for more info about TSI Intake Manfold and Flap Motors.
The Diverter valve or DV holds the boost pressure created by the turbocharger on 2.0T TSI engines. Many models came from the factory with an earlier version of this part which used a diaphragm which was common to tear. Take a look HERE to find out about TSI bad DV symptoms as well as fault codes.
While the FSI engine was known to have issues with fuel pumps and cam followers, the TSI engine has some problems around the HPFP. The TSI uses a roller type cam follower so wearing them is no longer and issue, but High pressure fuel pump itself can fail. Take a look HERE for more info on TSI High Pressure Fuel Pump failures and fault codes.
Almost all direct injection engines have this particular issue which is something that anyone with this engine should be aware of. Carbon build up on the intake valves of your TSI can cause cold start misfires, among many other things. Take a look HERE to find out more details on TSI Carbon Build Up
If you're TSI is having misfire issues and you have new Ignition coils and spark plugs, then next thing you are going to want to look at is the fuel injectors. Take a look HERE to find out about Bad Fuel Injectors on VW and Audi 2.0T TSI engines.
The lower timing chain tensioner on the TSI is a potential issue, and it is imperative that any owner should be aware of. Failing to neglect this can result in catastrophic failure causing engine damage when the engine jumps time. Take a look HERE for more info about TSI Timing Chain Tensioner Failures.
2.0T TSI Water Pump Failures
The water pumps on TSI engines are a very common failure item. Often times they repeatedly fail due to improper installation of the replacement or an oil leak causing premature failure.
The Evap purge valve often called the N80 valve, sends fuel vapors from the gas tank to the engine to be burned. This part can often be the cause of "Check Gas Cap" lights on most VW and Audi 2.0T TSI engines. Find out HERE why the N80 Valve causes "Check Gas Cap" lights on the TSI engine
The fuel pump control module is mounted under the rear seat of your car. This is just above the electrical in tank low pressure fuel pump. This part can overheat causing issues with the vehicle cutting out.
The Coolant Temperature sensor on the 2.0t TSI engine can cause check engine lights and potential coolant gauge issues. Take a look at the article below to find out more