4.0 TDI V8 SQ7 vs EA888 Gen 4

Side-by-side reliability comparison

Higher reliability score
EA888 Gen 4 BUY 82/100
+17 points over 4.0 TDI V8 SQ7
0 / 100
CAUTION 4.0 TDI V8 SQ7 Audi
0 / 100
BUY EA888 Gen 4 Audi

Specifications

4.0 TDI V8 SQ7
EA888 Gen 4
Brand
Audi
Audi
Verdict
CAUTION
BUY
Reliability
65
82
Years
2016--present
2020--present
Displacement
3956 cc
1984 cc
Layout
V8
I4
Type
Diesel
Petrol Turbo
Power
435 hp
190--320 hp
Known Issues
1
2
Total Risk Cost
€800--€2,500
€300--€1,200

Character

4.0 TDI V8 SQ7

"SQ7/SQ8. Electric compressor + twin-turbo. Most complex diesel ever made. 48V system. EGR cooler. DPF/SCR. Phenomenal performance but any failure = very expensive."

EA888 Gen 4

"Gen 3 refined. Higher compression, better cooling. Strong long-term outlook."

Issues Comparison

4.0 TDI V8 SQ7 1

▲ HIGH
EGR cooler failure €800--€2,500 60,000 km--120,000 km

EA888 Gen 4 2

● MODERATE
Oil dilution — cold/short trips €0--€500 0 km--80,000 km
○ MINOR
EGR valve fouling (petrol EGR) €300--€700 80,000 km--160,000 km

Models

4.0 TDI V8 SQ7 1

Q7 4M 2016--2020

EA888 Gen 4 9

A1 35 TFSI GB 2018--2024 Hatchback A3 35 TFSI 8Y 2020--2024 Hatchback A4 2.0 TFSI B9 2015--2024 Sedan A4 Avant 2.0 TFSI B9 2015--2024 Wagon A5 2.0 TFSI F5 2016--2024 Coupe A5 Sportback 2.0 TFSI F5 2016--2024 Fastback A6 2.0 TFSI C8 2018--2024 Sedan Q3 35 TFSI F3 2018--2024 SUV Q5 2.0 TFSI FY 2017--2024 SUV
Full 4.0 TDI V8 SQ7 Report Full EA888 Gen 4 Report