2013 2.0T Performance. About to hit 155,000. Normal wear/tear. PCV replaced, VVT solenoid, front engine cover gasket leak (fixed at 150,000 about $1300.00), Y-connector to coolant reservoir cracked, replaced, reservoir tank replaced, leaked at neck. No carbon build-up issues yet. Still so smooth and quiet at idle it's hard to tell the engine is running!