Audi Q7 4M — Reliability
Reliability Summary
Best engine
EA837 3.0 TFSI supercharged — 84/100
BUY
Worst engine
EA839 3.0 TFSI single-turbo (LK2) — 65/100
CAUTION
Average reliability
74/100
Engine Comparison
| Engine | Reliability Score | Verdict |
|---|---|---|
|
EA837 3.0 TFSI supercharged
3.0L TFSI Supercharged V6 |
84/100 | BUY |
|
EA839 3.0 TFSI single-turbo (LK2)
3.0 V6 TFSI Turbo |
65/100 | CAUTION |
Engines in this model
BUY
84
EA837 3.0 TFSI supercharged
3.0L TFSI Supercharged V6
Audi's supercharged 3.0 TFSI V6 (2008-2017): S4 and S5 B8, A6 and A7 C7, A8 D4, Q5 and SQ5 8R, Q7, V...
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CAUTION
65
EA839 3.0 TFSI single-turbo (LK2)
3.0 V6 TFSI Turbo
VW-Audi EA839 3.0 TFSI single-turbo V6 (2016 on) in the S4, S5, SQ5, the 55 TFSI A6, A7, A8, Q7 and ...
View details →Known Issues Across All Engines
| Issue | Engine | Severity |
|---|---|---|
| Fuel rail leak - fire risk (2011-2013 recall) | EA837 3.0 TFSI supercharged | moderate |
| PCV (crankcase ventilation) valve failure | EA837 3.0 TFSI supercharged | moderate |
| Thermostat and water pump failure (under the supercharger) | EA837 3.0 TFSI supercharged | moderate |
| Upper timing-chain tensioner rattle at cold start | EA837 3.0 TFSI supercharged | minor |
| Intake valve carbon build-up (direct injection) | EA837 3.0 TFSI supercharged | minor |
| Piston skirt wear and cylinder-wall scoring - knocking, oil use, engine replacement | EA839 3.0 TFSI single-turbo (LK2) | critical |
| Rocker-arm needle bearing failure (engines built to about August 2018) | EA839 3.0 TFSI single-turbo (LK2) | high |
| Oil consumption and carbon deposits | EA839 3.0 TFSI single-turbo (LK2) | moderate |
| Crankcase breather membrane failure - oil at the filler cap | EA839 3.0 TFSI single-turbo (LK2) | moderate |
| Coolant pump leak - coolant loss | EA839 3.0 TFSI single-turbo (LK2) | moderate |
FAQ
Is the Audi Q7 reliable?
The Audi Q7 has 2 engine options with reliability scores ranging from 65/100 (CAUTION) to 84/100 (BUY). Average reliability: 74/100.
Which Audi Q7 engine is most reliable?
The EA837 3.0 TFSI supercharged is the most reliable engine in the Audi Q7, scoring 84/100 (BUY).
What problems does the Audi Q7 have?
Across all engine variants, the Audi Q7 has 10 known issues. The most common are related to Fuel rail leak - fire risk (2011-2013 recall), PCV (crankcase ventilation) valve failure, Thermostat and water pump failure (under the supercharger).