Water pump / plastic cooling components
Often reportedIn this 2.0 TDI generation, plastic cooling circuit components (water pump, connectors, thermostat) are reported to be prone to early failure or leakage, potentially causing overheating.
Cooling
When buying a used Audi A6 2.0 TDI 2017 (C7 / facelift), the most frequently mentioned issue is: Water pump / plastic cooling components. Additionally, higher than expected oil consumption is also commonly reported.
Engine varies by trim; verify the engine code on the listing.
Listed from most frequently reported, each with its source.
In this 2.0 TDI generation, plastic cooling circuit components (water pump, connectors, thermostat) are reported to be prone to early failure or leakage, potentially causing overheating.
Cooling
Several Italian forum threads report higher than expected oil consumption in 2.0 engines, requiring frequent oil top-ups.
Engine Internal
The EA288 2.0 TDI in the A6 C7 uses a timing belt (not a chain). Premature wear of the tensioner or belt can cause abnormal noises and, if neglected, risk of breakage.
Engine Internal
Many users report that the particulate filter (FAP/DPF) clogs, especially during city or short-distance driving, leading to incomplete regenerations or frequent engine warning lights.
Exhaust Emissions
The EGR valve and cooler tend to accumulate soot and carbon sludge, clogging gas passage and the EGR throttle. Many A6 C7 users report rough running, power loss, engine warning lights, and the need to remove and clean or replace the circuit.
Exhaust Emissions
Owners report high-pressure pump failures or dirty/faulty injectors causing fuel delivery errors, limp mode, or no-start conditions.
Fuel System
Same trim, different year
We only publish claims we can verify. Cards come from Difetti fault records matched to this vehicle on brand, fuel, engine and generation.