2.7 TDI vs EA839 2.9 V6 TT

Side-by-side reliability comparison

Higher reliability score
EA839 2.9 V6 TT ACCEPTABLE 75/100
+15 points over 2.7 TDI
0 / 100
CAUTION 2.7 TDI Audi
0 / 100
ACCEPTABLE EA839 2.9 V6 TT Audi

Specifications

2.7 TDI
EA839 2.9 V6 TT
Brand
Audi
Audi
Verdict
CAUTION
ACCEPTABLE
Reliability
60
75
Years
2004--2011
2017--present
Displacement
2698 cc
2894 cc
Layout
V6
V6
Type
Diesel
Petrol Turbo
Power
163--190 hp
450 hp
Known Issues
2
1
Total Risk Cost
€2,000--€5,500
€400--€1,000

Character

2.7 TDI

"C6 A6, B7 A4. Chain driven BUT chain at rear (expensive). Injector failures. DPF. EGR. Better than 2.5 TDI (no cam wear) but still expensive to maintain."

EA839 2.9 V6 TT

"RS4/RS5 B9. EA839 family (shared with Porsche). Hot-V design. Strong internals. Carbon buildup (DI). Turbo reliable. Premium fuel required. Excellent daily RS car."

Issues Comparison

2.7 TDI 2

◆ CRITICAL
Timing chain at rear of engine €1,500--€4,000 100,000 km--180,000 km
▲ HIGH
Injector failure €500--€1,500 100,000 km--200,000 km

EA839 2.9 V6 TT 1

● MODERATE
Carbon buildup (DI) €400--€1,000 60,000 km--120,000 km

Models

2.7 TDI 1

A6 C6 2004--2011

EA839 2.9 V6 TT 2

A4 B9 2018--2023 A5 F5 2017--2024
Full 2.7 TDI Report Full EA839 2.9 V6 TT Report