M50/M52 vs M54

Side-by-side reliability comparison

Higher reliability score
M50/M52 BEST 95/100
+2 points over M54
0 / 100
BEST M50/M52 BMW
0 / 100
BEST M54 BMW

Specifications

M50/M52
M54
Brand
BMW
BMW
Verdict
BEST
BEST
Reliability
95
93
Years
1990--2000
2000--2006
Displacement
2494 cc
2979 cc
Layout
I6
I6
Type
Petrol Na
Petrol Na
Power
150--170 hp
170--231 hp
Known Issues
3
4
Total Risk Cost
€330--€850
€530--€1,250

Character

M50/M52

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

M54

"Peak old-school BMW. Raspy, high-revving, raw. The benchmark. 300k+ km routine."

Issues Comparison

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--∞

M54 4

● MODERATE
Cooling plastics — water pump impeller critical €200--€450 80,000 km--150,000 km
● MODERATE
DISA valve failure (intake manifold flap) €80--€200 80,000 km--160,000 km
● MODERATE
Double VANOS oil seal wear €150--€350 100,000 km--180,000 km
○ MINOR
Valve cover gasket oil leak €100--€250 100,000 km--200,000 km

Models

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

M54 13

5 Series E39 2000--2003 3 Series E46 2001--2005 5 Series E60 2003--2007 5 Series E60 2003--2005 5 Series E39 2000--2003 Z4 E85 2003--2005 3 Series E46 2001--2005 5 Series E60 2003--2005 X5 E53 2000--2006 5 Series E39 2000--2003 Z4 E85 2003--2005 3 Series E46 2001--2005 Z3 E36/7 2000--2002
Full M50/M52 Report Full M54 Report