M43 vs M50
Side-by-side reliability comparison
Higher reliability score
M50
BEST
88/100
+6 points over M43
0
/ 100
BUY
M43
BMW
0
/ 100
BEST
M50
BMW
Specifications
M43
M50
Brand
BMW
BMW
Verdict
BUY
BEST
Reliability
82
88
Years
1991--2002
1990--1996
Displacement
1895 cc
2494 cc
Layout
I4
I6
Type
Petrol Na
Petrol Na
Power
75--118 hp
150--192 hp
Known Issues
2
2
Total Risk Cost
€180--€550
€400--€1,100
Character
M43
"Cast iron block workhorse. Timing chain not belt (unlike M40). Simple, cheap to maintain. 300k+ km common. Low power is the only complaint."
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."
Issues Comparison
M43 2
● MODERATE
Cooling system plastic failures
○ MINOR
Valve cover gasket oil leak
M50 2
▲ HIGH
Water pump plastic impeller failure
● MODERATE
VANOS unit wear (M50TU)