2.7 TDI vs 2.5 TFSI I5

Side-by-side reliability comparison

Higher reliability score
2.5 TFSI I5 BUY 83/100
+23 points over 2.7 TDI
0 / 100
CAUTION 2.7 TDI Audi
0 / 100
BUY 2.5 TFSI I5 Audi

Specifications

2.7 TDI
2.5 TFSI I5
Brand
Audi
Audi
Verdict
CAUTION
BUY
Reliability
60
83
Years
2004--2011
2009--present
Displacement
2698 cc
2480 cc
Layout
V6
I5
Type
Diesel
Petrol Turbo
Power
163--190 hp
340--400 hp
Known Issues
2
2
Total Risk Cost
€2,000--€5,500
€700--€1,600

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."

2.5 TFSI I5

"Legendary 5-cyl. 9x Engine of the Year. Forged internals. Surprisingly reliable."

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

2.5 TFSI I5 2

○ MINOR
Wastegate rattle (2015-2018 production) €300--€800 20,000 km--80,000 km
○ MINOR
Carbon buildup (DI engine) €400--€800 60,000 km--120,000 km

Models

2.7 TDI 1

A6 C6 2004--2011

2.5 TFSI I5 5

Ducato 250/290 2011--present TT 8J 2009--2014 Q3 8U 2013--2018 A3 8Y 2022--present TT RS 2.5 TFSI 8S 2016--2023 Coupe
Full 2.7 TDI Report Full 2.5 TFSI I5 Report