M50 vs M50/M52
Side-by-side reliability comparison
Higher reliability score
M50/M52
BEST
95/100
+7 points over M50
0
/ 100
BEST
M50
BMW
0
/ 100
BEST
M50/M52
BMW
Specifications
M50
M50/M52
Brand
BMW
BMW
Verdict
BEST
BEST
Reliability
88
95
Years
1990--1996
1990--2000
Displacement
2494 cc
2494 cc
Layout
I6
I6
Type
Petrol Na
Petrol Na
Power
150--192 hp
150--170 hp
Known Issues
2
3
Total Risk Cost
€400--€1,100
€330--€850
Character
M50
"Cast iron block legend. One of BMW's most reliable ever. M50TU added single VANOS. Strong internals handle 300k+ km. Cooling plastics only weakness."
M50/M52
"Smooth, linear, bulletproof. Classic BMW feel. Simple maintenance. Cheap parts."
Issues Comparison
M50 2
▲ HIGH
Water pump plastic impeller failure
● MODERATE
VANOS unit wear (M50TU)
M50/M52 3
● MODERATE
Cooling system plastics (tank, housing, impeller)
○ MINOR
VANOS oil seal wear (M52 only)
○ MINOR
Valve cover / oil pan gasket leaks