Notsure specifically for the A4, but the 2.0TDI units are rock solid for reliability, only issues I could see would be related to the newness of the AdBlue tech.
The2.0t four-cylinder is a workhorse engine for the Volkswagen group. The C7 A6 used the 2.0t as the base engine. Timing chain tensioner. The early C7 A6 used the Gen 2 2.0 TSI engine, which suffered from timing chain tensioner failure. This issue can lead to catastrophic engine failure if the engine jumps timing. Carbon Buildup
Yes it can do. You’ll notice that there’s a problem when the engine warning light illuminates, and the engine suddenly struggles to pull properly. Indeed, the A4 Mk4 can feel truly lethargic. The first thing to do is to connect a fault-code reader to the OBD port. If it displays either code P0403 or P0401, then you’ll know that the
EGR(Exhaust Gas Recirculation) Valve Issues The EGR system is responsible for recirculating a portion of exhaust gases back into the engine to reduce emissions. Over
Thelist of VW/Audi engines reviewed on MotorReviwer.com. Full descriptions, specs, problems and maintenance tips for each engine. Home VW/Audi Engines. List of VW/Audi Engines - Specs, Common Problems, Reliability. 1.0 TSI EA211 Engine. 3.0 V6 TDI Engine. Touareg, A6, Q7, A8. 3.6 FSI VR6 EA390 Engine. Passat, Touareg. 4.2
Re Audi A6 2.0 tdi rattle from engine – 26-02-2016, 07:10 AM. Not sure. I'm not a technical person, but here first response after car was in first time. " The vibration/rattle has gone since he removed and refitted the ribbed v belt/ aircon pulley. The noise has now gone with or without the aircon on.
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audi 2.0 tdi engine problems