B47 vs M50/M52
Side-by-side reliability comparison
Higher reliability score
M50/M52
BEST
95/100
+15 points over B47
0
/ 100
BUY
B47
BMW
0
/ 100
BEST
M50/M52
BMW
Specifications
B47
M50/M52
Brand
BMW
BMW
Verdict
BUY
BEST
Reliability
80
95
Years
2014--present
1990--2000
Displacement
1995 cc
2494 cc
Layout
I4
I6
Type
Diesel
Petrol Na
Power
150--231 hp
150--170 hp
Known Issues
3
3
Total Risk Cost
€1,400--€3,500
€330--€850
Character
B47
"Torque monster, sips fuel. Fixed N47 flaws. Chain front-mounted. Avoid city-only."
M50/M52
"Smooth, linear, bulletproof. Classic BMW feel. Simple maintenance. Cheap parts."
Issues Comparison
B47 3
▲ HIGH
DPF blockage — city driving
● MODERATE
EGR valve / cooler carbon fouling
● MODERATE
Timing chain tensioner (front-mounted)
M50/M52 3
● MODERATE
Cooling system plastics (tank, housing, impeller)
○ MINOR
VANOS oil seal wear (M52 only)
○ MINOR
Valve cover / oil pan gasket leaks
Models
B47 61
1 Series
1 Series
X1
3 Series
3 Series
2 Series
3 Series
X3
X4
5 Series
1 Series
4 Series
X3
1 Series
2 Series Active Tourer
3 Series
X1
X5
5 Series
2 Series Active Tourer
2 Series
X2
5 Series
1 Series
2 Series Active Tourer
X3
3 Series
2 Series
2 Series Active Tourer
X3
1 Series
5 Series
4 Series
5 Series
X1
X5
1 Series
5 Series
3 Series
X3
5 Series
4 Series
5 Series
X5
3 Series
3 Series
X6
7 Series
X5
5 Series
X3
X5
X7
5 Series
7 Series
3 Series
8 Series
320d
320d GT
320d Touring
420d Gran Coupe