N53 vs M50/M52

Side-by-side reliability comparison

Higher reliability score
M50/M52 BEST 95/100
+70 points over N53
0 / 100
AVOID N53 BMW
0 / 100
BEST M50/M52 BMW

Specifications

N53
M50/M52
Brand
BMW
BMW
Verdict
AVOID
BEST
Reliability
25
95
Years
2007--2011
1990--2000
Displacement
2996 cc
2494 cc
Layout
I6
I6
Type
Petrol Na
Petrol Na
Power
272 hp
150--170 hp
Known Issues
2
3
Total Risk Cost
€2,500--€8,000
€330--€850

Character

N53

"N54 reliability without turbo power. Worst of both worlds. EU only."

M50/M52

"Smooth, linear, bulletproof. Classic BMW feel. Simple maintenance. Cheap parts."

Issues Comparison

N53 2

◆ CRITICAL
Piezoelectric injector failure — parts scarce €2,000--€6,000 40,000 km--120,000 km
▲ HIGH
Chronic lean running / mixture issues €500--€2,000 40,000 km--100,000 km

M50/M52 3

● MODERATE
Cooling system plastics (tank, housing, impeller) €150--€350 100,000 km--180,000 km
○ MINOR
VANOS oil seal wear (M52 only) €80--€200 120,000 km--200,000 km
○ MINOR
Valve cover / oil pan gasket leaks €100--€300 150,000 km--∞

Models

N53 5

6 Series E63 2007--2010 5 Series E60 2007--2010 3 Series E90 2007--2011 5 Series E60 2007--2010 3 Series E90 2007--2012

M50/M52 12

3 Series E36 1990--1994 3 Series E36 1990--1995 3 Series E36 1994--1999 5 Series E39 1996--2000 3 Series E46 1998--2001 5 Series E39 1996--2000 3 Series E36 1995--1999 3 Series E46 1998--2000 5 Series E39 1996--2000 Z3 E36/7 1997--2000 3 Series E36 1995--1999 3 Series E46 1998--2000
Full N53 Report Full M50/M52 Report