In these engines the water pump is not belt driven but has its own electric motor.
Applies to the engine N52B30.
2001–2008. The fault list covers this generation and the engines in it. If the listing gives the exact version, pick it below.

Matti Blume, MB-one 11:03, 1 May 2006 (UTC) / CC BY-SA 3.0
What to watch for
The list covers the generation, the engines and the transmissions. Once you pick the version, only the faults that apply to it stay.
In these engines the water pump is not belt driven but has its own electric motor.
Applies to the engine N52B30.
The crankcase breather valve and its four lines often fail.
Applies to the engine M54B30.
The DISA valve is the black box on the side of the intake manifold, and it adjusts the length of the intake so that there is more torque at low revs.
Applies to the engine M54B30.
Four aluminium bolts hold the housing of the variable valve timing (VANOS).
Applies to the engine N52B30.
The crankcase ventilation leads the gas that forms in the crankcase back to the intake and separates the oil out of it on the way.
Applies to the engine N52B30.
Repair: 80–900 EUR
The seals of the coolant pipe running between the cylinder banks harden, and the coolant starts to leak.
Applies to the engine N62B36, N62B40, N62B44 and 1 more.
Oil passages run inside the bracket of the alternator, and the gasket of the bracket goes brittle from the heat of the engine and then cracks.
Applies to the engine N62B36, N62B40, N62B44 and 1 more.
The VANOS solenoid valves fail sooner or later, and that gives fluctuating revs and a noticeable loss of power at low rpm, sometimes starting trouble as well.
Applies to the engine M54B30.
8 more faults belong to this generation. On the version page, only the ones that apply stay.
The manufacturer fixes these for free at a franchised dealer. Ask with the VIN whether it was done. The list covers the whole generation. We did not filter it by model year. Some apply only to a narrower production window.
Most recent: 9 August 2004
04V379000SEATSSEATS9 August 2004 · NHTSA (USA)ON CERTAIN PASSENGER VEHICLES, THE SOFTWARE PROGRAMMING OF THE DRIVER'S SEAT OCCUPANT DETECTION SYSTEM (ODS) MAY NOT BE ABLE TO RELIABLY DETERMINE IF THE DRIVER'S SEAT IS OCCUPIED.
Risk: IN CERTAIN CRASH CONDITIONS, THE DRIVER'S FRONT AIR BAG, HEAD PROTECTION SYSTEM, SAFETY BELT PRETENSIONER, AND KNEE AIR BAG MAY NOT DEPLOY, INCREASING THE RISK OF INJURY TO A SEAT OCCUPANT.
Remedy: DEALERS WILL REPROGRAM THE SOFTWARE FOR THE DRIVER'S SEAT OCCUPANT DETECTION SYSTEM. THE RECALL BEGAN OCTOBER 13, 2004. OWNERS SHOULD CONTACT BMW AT 1-800-831-1117.
Engines and transmissions in this generation
A fault is often tied to the engine, not to the whole generation. You find the engine code in the registration document.
E65 · 2001–2008
The fault list opens on the version page.
63 versions
3.0 l · 2979 cm³
M54B30 · GM5L40
730i
2001–2005 · 730i
3.0 l · 2979 cm³
M54B30 · GM5L40
730i Executive
2001–2005 · 730i Executive
3.0 l · 2979 cm³
M54B30 · GM5L40
730Li
2001–2005 · 730Li
3.0 l · 2979 cm³
M54B30 · GM5L40
730Li Executive
2001–2005 · 730Li Executive
3.0 l · 2993 cm³
M57D30TU · ZF6HP26
730d
2001–2005 · 730d
3.0 l · 2993 cm³
M57D30TU · ZF6HP26
730d Executive
2001–2005 · 730d Executive
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730d
2005–2008 · 730d
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730d Edition
2005–2008 · 730d Edition
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730d Executive
2005–2008 · 730d Executive
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730d High Edition
2005–2008 · 730d High Edition
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730d High Executive
2005–2008 · 730d High Executive
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730Ld
2005–2008 · 730Ld
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730Ld Edition
2005–2008 · 730Ld Edition
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730Ld Executive
2005–2008 · 730Ld Executive
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730Ld High Edition
2005–2008 · 730Ld High Edition
3.0 l · 2993 cm³
M57D30TU2 · ZF6HP-BMW
730Ld High Executive
2005–2008 · 730Ld High Executive
3.0 l · 2996 cm³
N52B30 · GM5L40
730i
2005–2008 · 730i
3.0 l · 2996 cm³
N52B30 · GM5L40
730i Edition
2005–2008 · 730i Edition
3.0 l · 2996 cm³
N52B30 · GM5L40
730i Executive
2005–2008 · 730i Executive
3.0 l · 2996 cm³
N52B30 · GM5L40
730i High Edition
2005–2008 · 730i High Edition
3.0 l · 2996 cm³
N52B30 · ZF6HP26
730i High Executive
2005–2008 · 730i High Executive
3.0 l · 2996 cm³
N52B30 · GM5L40
730Li
2005–2008 · 730Li
3.0 l · 2996 cm³
N52B30 · GM5L40
730Li Edition
2005–2008 · 730Li Edition
3.0 l · 2996 cm³
N52B30 · GM5L40
730Li Executive
2005–2008 · 730Li Executive
3.0 l · 2996 cm³
N52B30 · GM5L40
730Li High Edition
2005–2008 · 730Li High Edition
3.0 l · 2996 cm³
N52B30 · GM5L40
730Li High Executive
2005–2008 · 730Li High Executive
3.6 l · 3600 cm³
N62B36 · ZF6HP-BMW
735i
2001–2005 · 735i
3.6 l · 3600 cm³
N62B36 · ZF6HP-BMW
735i Executive
2001–2005 · 735i Executive
3.6 l · 3600 cm³
N62B36 · ZF6HP-BMW
735Li
2001–2005 · 735Li
3.6 l · 3600 cm³
N62B36 · ZF6HP-BMW
735Li Executive
2001–2005 · 735Li Executive
3.9 l · 3901 cm³
M67D40TU · ZF6HP26
740d
2001–2005 · 740d
3.9 l · 3901 cm³
M67D40TU · ZF6HP26
740d Executive
2001–2005 · 740d Executive
4.0 l · 4000 cm³
N62B40 · GM5L40
740i
2005–2008 · 740i
4.0 l · 4000 cm³
N62B40 · GM5L40
740i Edition
2005–2008 · 740i Edition
4.0 l · 4000 cm³
N62B40 · GM5L40
740i Executive
2005–2008 · 740i Executive
4.0 l · 4000 cm³
N62B40 · GM5L40
740i High Edition
2005–2008 · 740i High Edition
4.0 l · 4000 cm³
N62B40 · GM5L40
740i High Executive
2005–2008 · 740i High Executive
4.0 l · 4000 cm³
N62B40 · GM5L40
740Li
2005–2008 · 740Li
4.0 l · 4000 cm³
N62B40 · GM5L40
740Li Edition
2005–2008 · 740Li Edition
4.0 l · 4000 cm³
N62B40 · ZF6HP-BMW
740Li Executive
2005–2008 · 740Li Executive
4.0 l · 4000 cm³
N62B40 · GM5L40
740Li High Edition
2005–2008 · 740Li High Edition
4.0 l · 4000 cm³
N62B40 · GM5L40
740Li High Executive
2005–2008 · 740Li High Executive
4.4 l · 4398 cm³
N62B44 · ZF6HP-BMW
745i
2001–2005 · 745i
4.4 l · 4398 cm³
N62B44 · ZF6HP-BMW
745i Executive
2001–2005 · 745i Executive
4.4 l · 4398 cm³
N62B44 · ZF6HP-BMW
745Li
2001–2005 · 745Li
4.4 l · 4398 cm³
N62B44 · ZF6HP26
745Li Executive
2001–2005 · 745Li Executive
4.4 l · 4423 cm³
no engine code
745d
2005–2008 · 745d
4.4 l · 4423 cm³
no engine code
745d Edition
2005–2008 · 745d Edition
4.4 l · 4423 cm³
no engine code
745d Executive
2005–2008 · 745d Executive
4.4 l · 4423 cm³
no engine code
745d High Edition
2005–2008 · 745d High Edition
4.4 l · 4423 cm³
no engine code
745d High Executive
2005–2008 · 745d High Executive
4.8 l · 4799 cm³
N62B48TU · ZF6HP26
750i
2005–2008 · 750i
4.8 l · 4799 cm³
N62B48TU · ZF6HP26
750i Edition
2005–2008 · 750i Edition
4.8 l · 4799 cm³
N62B48TU · ZF6HP26
750i Executive
2005–2008 · 750i Executive
4.8 l · 4799 cm³
N62B48TU · ZF6HP26
750i High Edition
2005–2008 · 750i High Edition
4.8 l · 4799 cm³
N62B48TU · ZF6HP26
750i High Executive
2005–2008 · 750i High Executive
4.8 l · 4799 cm³
N62B48TU · ZF6HP26
750Li
2005–2008 · 750Li
4.8 l · 4799 cm³
N62B48TU · ZF6HP26
750Li Edition
2005–2008 · 750Li Edition
4.8 l · 4799 cm³
N62B48TU · ZF6HP26
750Li Executive
2005–2008 · 750Li Executive
4.8 l · 4799 cm³
N62B48TU · ZF6HP26
750Li High Edition
2005–2008 · 750Li High Edition
Neighbouring generations
E65/E66 (2001-2008). If the listing is from the changeover year, look at the neighbour too.
Previous generation
This is the earliest.
This generation
E65 · 2001–2008
Next generation
F01 · 2008–2015Common questions
2001–2008. The changeover year can fall in two generations. If the listing is from that year, look at the neighbour too.
No. It depends on the engine and the transmission too.
The fault list is.
We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.