Audi A6 Avant 2.0 TDI C7 — Reliability
Reliability Summary
Engine Comparison
| Engine | Reliability Score | Verdict |
|---|---|---|
|
EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA)
2.0L TDI (clean diesel) |
69/100 | ACCEPTABLE |
|
2.0 TDI CR EA189 (CBAB/CBDC/CFFB/CFHC/CAGA/CBBB/CFGB/CJCA/CLJA/CNHA)
2.0L TDI CR I4 (EA189) |
62/100 | CAUTION |
Engines in this model
EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA)
2.0L TDI (clean diesel)
MQB/MDB-era 2.0 TDI (2012 on), including the 2019+ evo with twin AdBlue dosing. Robust bottom end; t...
View details →2.0 TDI CR EA189 (CBAB/CBDC/CFFB/CFHC/CAGA/CBBB/CFGB/CJCA/CLJA/CNHA)
2.0L TDI CR I4 (EA189)
The first common-rail 2.0 TDI (2007-2015) and the Dieselgate engine. Strong and economical, but the ...
View details →Known Issues Across All Engines
| Issue | Engine | Severity |
|---|---|---|
| Switchable water pump / control slide failure - overheating (built to Sep 2014) | EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA) | high |
| Timing belt - interference engine, long official interval | EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA) | high |
| DPF clogging and fuel dilution of the oil on short trips | EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA) | moderate |
| AdBlue / SCR faults - dosing valve crystals, pump module, NOx sensors | EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA) | moderate |
| Excessive oil consumption (184 PS versions) | EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA) | moderate |
| Intake-manifold intercooler internal cracks - coolant burned in the cylinders | EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA) | moderate |
| EGR cooler and valve - sooting, cracks and coolant loss | EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA) | moderate |
| Timing belt - interference engine, preventive replacement | 2.0 TDI CR EA189 (CBAB/CBDC/CFFB/CFHC/CAGA/CBBB/CFGB/CJCA/CLJA/CNHA) | high |
| Dieselgate NOx software - recall update must be completed | 2.0 TDI CR EA189 (CBAB/CBDC/CFFB/CFHC/CAGA/CBBB/CFGB/CJCA/CLJA/CNHA) | high |
| High-pressure fuel pump (Bosch CP4.1) failure - metal debris through the fuel system | 2.0 TDI CR EA189 (CBAB/CBDC/CFFB/CFHC/CAGA/CBBB/CFGB/CJCA/CLJA/CNHA) | high |
| DPF clogging and differential-pressure sensor faults | 2.0 TDI CR EA189 (CBAB/CBDC/CFFB/CFHC/CAGA/CBBB/CFGB/CJCA/CLJA/CNHA) | moderate |
| Early Siemens piezo injector failure (170 PS CR) | 2.0 TDI CR EA189 (CBAB/CBDC/CFFB/CFHC/CAGA/CBBB/CFGB/CJCA/CLJA/CNHA) | moderate |
FAQ
Is the Audi A6 Avant 2.0 TDI reliable?
The Audi A6 Avant 2.0 TDI has 2 engine options with reliability scores ranging from 62/100 (CAUTION) to 69/100 (ACCEPTABLE). Average reliability: 66/100.
Which Audi A6 Avant 2.0 TDI engine is most reliable?
The EA288 2.0 TDI (CRBC/CRLB/CUNA/DFGA/DFHA/DETA/CUAA/DTTA/DTUA/DTIA) is the most reliable engine in the Audi A6 Avant 2.0 TDI, scoring 69/100 (ACCEPTABLE).
What problems does the Audi A6 Avant 2.0 TDI have?
Across all engine variants, the Audi A6 Avant 2.0 TDI has 17 known issues. The most common are related to Switchable water pump / control slide failure - overheating (built to Sep 2014), Timing belt - interference engine, long official interval, DPF clogging and fuel dilution of the oil on short trips.