N43 vs M54

Side-by-side reliability comparison

Higher reliability score
M54 BEST 93/100
+45 points over N43
0 / 100
CAUTION N43 BMW
0 / 100
BEST M54 BMW

Specifications

N43
M54
Brand
BMW
BMW
Verdict
CAUTION
BEST
Reliability
48
93
Years
2007--2011
2000--2006
Displacement
1995 cc
2979 cc
Layout
I4
I6
Type
Petrol Na
Petrol Na
Power
115--170 hp
170--231 hp
Known Issues
2
4
Total Risk Cost
€1,400--€3,500
€530--€1,250

Character

N43

"Direct injection 4-cyl. Injector failure, high-pressure fuel pump issues, lean-burn NOx sensor problems. Short production run. Avoid if possible — N46 or B48 are better choices."

M54

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

Issues Comparison

N43 2

▲ HIGH
High-pressure fuel pump failure €800--€2,000 60,000 km--120,000 km
▲ HIGH
Direct injector failure €600--€1,500 80,000 km--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

N43 7

1 Series E87 2007--2011 1 Series E87 2007--2011 5 Series E60 2007--2010 3 Series E90 2007--2012 3 Series E90 2007--2012 3 Series E90 2007--2012 1 Series E87 2007--2011

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 N43 Report Full M54 Report