M28.70/M28.80 vs EA839

Side-by-side reliability comparison

Higher reliability score
EA839 ACCEPTABLE 72/100
+2 points over M28.70/M28.80
0 / 100
ACCEPTABLE M28.70/M28.80 Porsche
0 / 100
ACCEPTABLE EA839 Porsche

Specifications

M28.70/M28.80
EA839
Brand
Porsche
Porsche
Verdict
ACCEPTABLE
ACCEPTABLE
Reliability
70
72
Years
2017--present
2016--present
Displacement
3996 cc
2995 cc
Layout
V8
V6
Type
Petrol Turbo
Petrol Turbo
Power
550--630 hp
340--440 hp
Known Issues
4
4
Total Risk Cost
€3,800--€10,200
€3,300--€8,300

Character

M28.70/M28.80

"Brute force V8TT. 550-630hp. Reliable but maintenance costs are eye-watering. Turbo oil lines need watching."

EA839

"Audi-derived V6TT. Strong, refined. Coolant transfer tube is Achilles heel. Porsche tax on repairs."

Issues Comparison

M28.70/M28.80 4

▲ HIGH
Turbo oil feed line leak €2,000--€5,000 50,000 km--100,000 km
● MODERATE
Ignition coil / spark plug failure €400--€1,200 40,000 km--80,000 km
● MODERATE
Coolant line / hose deterioration €800--€2,500 60,000 km--120,000 km
○ MINOR
Engine/transmission mount wear €600--€1,500 80,000 km--150,000 km

EA839 4

▲ HIGH
Coolant transfer tube leak €1,500--€3,500 60,000 km--120,000 km
● MODERATE
Turbo wastegate rattle €800--€2,500 40,000 km--100,000 km
● MODERATE
Oil separator valve failure €400--€900 80,000 km--150,000 km
● MODERATE
Water pump failure €600--€1,400 80,000 km--150,000 km

Models

M28.70/M28.80 4

Panamera 971 2017--2020 Panamera 971 2020--2024 Cayenne Turbo E3 2018--present SUV Cayenne Turbo GT E3 2021--present SUV

EA839 5

Macan 95B 2014--2018 Panamera 970 2013--2016 Cayenne 3.0T E3 2018--present SUV Cayenne S E3 2019--present SUV Panamera 3.0T 971 2016--present Sedan
Full M28.70/M28.80 Report Full EA839 Report