BMW Serie 7 E65 problems (2001–2008)
We have documented 2 engines for the BMW Serie 7 E65; the BMW M57 has high or critical severity faults. The safest option is the BMW N62 / N63 in its N62B48TU 4.8 naturally aspirated 355-367 hp (550i, 650i, 750i, X5 4.8i; 2005-2010) version, with a «Buy» verdict.[1][2]
Outside the engine: Away from the engine, the 7 Series E65 brings together, in owner testimonies, iDrive infotainment faults, front-end wear and some corrosion. We have not found any campaigns or independent studies: everything comes from 64 testimonies on fiches-auto.fr.[3]
BMW Serie 7 E65 rating: acceptable reliability
Calculated using only 10 documented faults and their sources: the most serious and frequent faults weigh more. Limited evidence: it is based on few sources or few documented faults, so it is not included in the rankings. Having few documented faults does not mean it is reliable: it may simply be little studied. How it is calculated
- Engine5.4From 3.7 to 7.1 depending on the engine
- Gearbox10.0No documented faults
- Suspension8.31 fault and ITV (technical inspection)
- Brakes7.2Technical inspection (ITV) only: 1.1 times the defects normal for its age
- Tyres and wheels10.0No documented faults
- Steering8.5Technical inspection (ITV) only: 0.6 times the defects normal for its age
- Electrical system10.0No documented faults
- Headlights and lights8.4Technical inspection (ITV) only: 0.6 times the defects normal for its age
- Electronics and infotainment9.61 fault
- Climate control10.0No documented faults
- Bodywork and interior8.81 fault and ITV (technical inspection)
- Airbags and safety10.0No documented faults
The weak points of the BMW Serie 7 E65
- 1Critical severity: Broken intake swirl flapsBMW M57 engine
- 2High severity: Crankcase ventilation (PCV) valve failureBMW M57 engine
- 3Medium severity: N62 coolant loss from hoses and the pipe between the cylinder banksBMW N62 / N63 engine
- 4Medium severity: Cracked exhaust manifoldBMW M57 engine
- 5Medium severity: Crankshaft pulley vibration damper failureBMW M57 engine
Documented engines, from highest to lowest risk
- BMW M572002–2008 · 730dMost serious fault:Critical severityVerdict:With caution
- BMW N62 / N632001–2008 · 735i / 735Li · 745i / 745Li · 740i / 740LiMost serious fault:Medium severityVerdict:BuyWith cautiondepending on versionSafest option
The first label is the most serious fault affecting that engine in this car; the second, our verdict for the versions it is fitted to. Each engine's risk index is calculated only from the faults that affect this car (how we calculate it). We only show engines we have documented with sources: if yours does not appear, we have not analysed it yet. View all engines
See what to check before buyingOutside the engine
BMW M57 (M57D25/M57D30) · Diesel
- In the Serie 7 E65
- 2002–2008[4]
- Name
- 730d
- Faults that affect it
- 5 · 2 of high or critical severity
Verdict for the versions it uses
M57D30TU, first revision 3.0 litres (201-272 hp, 2001-2006)2001–2006 · 201–272 hp · M57D30TU
With cautionA BMW specialist workshop places this revision among those that generally have the swirl flaps prone to breaking.[5]
M57D30TU2, second revision 3.0 litres, aluminium block (204-286 hp, 2004-2010)2004–2010 · 204–286 hp · M57D30TU2
With cautionA specialist workshop expressly names the 231 hp E90 330d/330xd and the twin-turbo 335d/535d among the versions with swirl flaps; it points to only a final 197 hp revision of the 325d/525d as an exception.[5]
Faults that affect the Serie 7 E65
- Critical severityFrequency: CommonIntakeBroken intake swirl flapsYes: most automatic M57 and M57TU engines (330d, 530d, 535d, 730d, X3 3.0d and so on) have six metal flaps in the intake manifold that can seize, come loose and wreck a cylinder. The E53 X5 3.0d and the manual gearboxes of the first 330d/530d are free of them, according to a specialist workshop.
- High severityFrequency: CommonLubricationCrankcase ventilation (PCV) valve failureThe valve that separates oil from the crankcase gases (PCV) degrades over time, especially after 120,000-150,000 km, and can cause oil consumption, bluish smoke and a rough idle and, if ignored, foul the turbo, the EGR or the particulate filter.Appears at around 120,000 km
- Medium severityFrequency: OccasionalCylinder head and blockCracked exhaust manifoldThe M57 exhaust manifold can crack, causing loss of power, an unstable idle and a smell of exhaust fumes in the cabin; the recommended repair is to replace it with a cast one.
- Medium severityFrequency: OccasionalOtherCrankshaft pulley vibration damper failureThe M57 crankshaft vibration damper (pulley) can fail with use, warning with abnormal noises and knocking at the front of the engine before it breaks completely.
- Low severityFrequency: OccasionalIntakeFaulty air flow meter on the BMW M57 (loss of power)The air flow meter is a known fault on six-cylinder M57 diesels: over time it loses accuracy and the car pulls less. It is a cheap repair compared with the turbo or injection.Repair (garage): €100–€300
Serie 7 E65 BMW M57 pageAll versions and faults of the BMW M57
BMW N62 / N63
Safest optionBMW V8 de gasolina N62 (atmosférico) and N63 (biturbo) · Petrol
- Names
- 735i / 735Li · 745i / 745Li · 740i / 740Li · 750i / 750Li
- Faults that affect it
- 2
Verdict for the versions it uses
N62B36 3.6 naturally aspirated 272 hp (735i, 2001-2005)2001–2005 · 272 hp · N62B36
With cautionIt is the oldest N62 and the 6 Series guide places coolant loss mainly on the older examples; check the hoses and level before buying.[1][8]
N62B44 4.4 naturally aspirated 320-333 hp (545i, 645Ci, 745i, X5 4.4i; 2001-2006)2001–2006 · 320–333 hp · N62B44
With cautionA 100,000 km test of a 745i recorded no engine defects, but the sources cite coolant loss from hoses (Gebrauchtwagenberater and Auto Bild) and, to a lesser extent, valve stem seals (Auto Bild): both points need checking.[8][9][10]
N62B40 4.0 naturally aspirated 306 hp (540i and 740i, 2005-2010)2005–2010 · 306 hp · N62B40
With cautionThe open sources give no reliability data specific to the 4.0; it shares with the rest of the N62 the points to check (coolant hoses and valve stem seals).[8][10]
N62B48TU 4.8 naturally aspirated 355-367 hp (550i, 650i, 750i, X5 4.8i; 2005-2010)2005–2010 · 355–367 hp · N62B48, N62B48TU
BuyThe German guides describe the 6 Series N62 as a solid engine and the X5 E70 4.8i's as an engine with few problems; even so, at over 15 years old, the coolant hoses and valve stem seals should be checked.[1][2]
Faults that affect the Serie 7 E65
Only those that affect the versions and years that this car used. The BMW N62 / N63 has 6 documented faults in total.
- Medium severityFrequency: CommonCoolingN62 coolant loss from hoses and the pipe between the cylinder banksOn the N62 V8, coolant loss from cracked hoses or pipes is typical, especially on the earliest units. Replacing them is laborious: the hose between the banks means removing a good part of the engine.
- Medium severityFrequency: OccasionalLubricationN62 blue smoke and oil consumption from hardened valve stem sealsOn the N62 V8, the valve stem seals can harden with age and cause oil consumption with blue smoke. It is not a widespread fault: several German guides describe the engine as solid.
Serie 7 E65 BMW N62 / N63 pageAll versions and faults of the BMW N62 / N63
Faults of the BMW Serie 7 E65 outside the engine
Suspension, brakes, tyres, electronics and the rest of the car. They occur with any engine.
What the MOT inspection finds on the BMW Serie 7 E65
Official Dutch MOT (APK) inspection data: 1,714 inspections of 854 cars registered between 2001 and 2007, compared with cars of the same age.
- Fewer defects than average
Suspension and axles· counts in the score
Defects in 8.2% of inspections; in cars of its age, 10.6%.
- Average
Brakes· counts in the score
Defects in 15.2% of inspections; in cars of its age, 13.4%.
- Fewer defects than average
Steering· counts in the score
Defects in 2.5% of inspections; in cars of its age, 4.5%.
- Fewer defects than average
Headlights and lights· counts in the score
Defects in 17.6% of inspections; in cars of its age, 29%.
- Fewer defects than average
Rust and bodywork· counts in the score
Defects in 1.1% of inspections; in cars of its age, 2%.
- Fewer defects than average
Exhaust and emissions
Defects in 2.3% of inspections; in cars of its age, 6.4%.
- Many more defects than average
Fluid leaks
Defects in 30.3% of inspections; in cars of its age, 13.6%.
- Average
Glass, wipers and mirrors
Defects in 6.9% of inspections; in cars of its age, 6.4%.
- Average
Tyres and wheels· depends mostly on maintenance
Defects in 15.9% of inspections; in cars of its age, 17.4%.
The inspection measures wear and the defects visible at a periodic check, not engine or electronics failures. Source: RDW Open Data (public domain). How we calculate it · opendata.rdw.nl
Checklist for buying a used BMW Serie 7 E65
Check the advert or the paperwork to see which engine the car has and go through its section. Each point comes from a documented fault; you can tick them off as you inspect.
If it has the BMW M57 (2002–2008)
Broken intake swirl flaps
Critical severityCrankcase ventilation (PCV) valve failure
High severityCracked exhaust manifold
Medium severityCrankshaft pulley vibration damper failure
Medium severityIf it has the BMW N62 / N63 (2001–2008)
Wear parts for the BMW Serie 7 E65
Brakes, wiper blades, pollen filter and battery, searched for this model. The exact part number depends on the engine and year: confirm it with the registration plate or VIN.
Brake pads
Brake discs
Wiper blades
Pollen filter
Battery
Affiliate links: if you buy from these shops, MotorFiable may receive a commission at no cost to you. Check compatibility against the registration plate or VIN before ordering. Affiliate links
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Frequently asked questions
Is the BMW Serie 7 E65 reliable?
We have documented 2 engines for the BMW Serie 7 E65; the BMW M57 has high or critical severity faults. The safest option is the BMW N62 / N63 in its N62B48TU 4.8 naturally aspirated 355-367 hp (550i, 650i, 750i, X5 4.8i; 2005-2010) version, with a «Buy» verdict. Away from the engine, the 7 Series E65 brings together, in owner testimonies, iDrive infotainment faults, front-end wear and some corrosion. We have not found any campaigns or independent studies: everything comes from 64 testimonies on fiches-auto.fr.
Which BMW Serie 7 E65 engine is the most reliable?
Among the 2 engines we have documented, the safest option is the BMW N62 / N63 in its N62B48TU 4.8 naturally aspirated 355-367 hp (550i, 650i, 750i, X5 4.8i; 2005-2010) version, with a «Buy» verdict. The German guides describe the 6 Series N62 as a solid engine and the X5 E70 4.8i's as an engine with few problems; even so, at over 15 years old, the coolant hoses and valve stem seals should be checked.[1][2]
What problems does the BMW Serie 7 E65 have apart from the engine?
Away from the engine, the 7 Series E65 brings together, in owner testimonies, iDrive infotainment faults, front-end wear and some corrosion. We have not found any campaigns or independent studies: everything comes from 64 testimonies on fiches-auto.fr. The most important documented faults are: wear of the front suspension arms and bushes (suspension, medium severity), paint degradation on door handles and bodywork corrosion (bodywork and interior, low severity) and iDrive CCC unit failure and infotainment equipment faults (sat nav, CD, radio, speakers) (electronics and infotainment, low severity).[3]
What faults does the BMW Serie 7 E65 have?
The most important by severity and frequency, on the engines we have documented, are: broken intake swirl flaps (BMW M57, critical severity), crankcase ventilation (PCV) valve failure (BMW M57, high severity), n62 coolant loss from hoses and the pipe between the cylinder banks (BMW N62 / N63, medium severity), cracked exhaust manifold (BMW M57, medium severity) and crankshaft pulley vibration damper failure (BMW M57, medium severity).
What is the best year to buy a BMW Serie 7 E65?
According to our rating by year, the best is 2001 (7.6/10); the worst rated is 2002 (6.7/10). Each year's rating counts only the engines sold that year and the faults that affect those units: open each year to see what changes.
Sources
Every fact on this page links to its source. If you find an error, let us know.
- BMW 6er E63, E64 – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 5 January 2023 · consulted 8 October 2026 · in German
- BMW X5 E70 – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 5 January 2023 · consulted 8 October 2026 · in German
- Tous les problèmes sur BMW Série 7 2001-2008 (64 témoignages)fiches-auto.fr · Other source · consulted 5 October 2026 · in French
- BMW 7 Series (E65)Wikipedia (inglés) · Other source · consulted 27 September 2026
- Motor BMW M57 - Reparación EspecializadaDasercars · Technical documentation · consulted 27 September 2026 · in Spanish
- BMW N62Wikipedia (inglés) · Other source · consulted 8 October 2026
- BMW N62Wikipedia (alemán) · Other source · consulted 8 October 2026 · in German
- BMW 5er E60, E61 – Typische Probleme & SchwachstellenGebrauchtwagenberater.de · Motoring press · published 26 April 2024 · consulted 8 October 2026 · in German
- BMW 745i (E65): Test über 100.000 kmAUTO ZEITUNG · Motoring press · published 12 January 2018 · consulted 8 October 2026 · in German
- BMW 650i: Gebrauchtwagen-TestAUTO BILD · Motoring press · published 4 December 2015 · consulted 8 October 2026 · in German
- Válvula PCV en motores diéselDasercars · Technical documentation · consulted 27 September 2026 · in Spanish
- BMW M57D30 engine specifications, problems and reliabilityBimmerPulse · Technical documentation · consulted 27 September 2026
- Fiabilité Bmw Serie 5 (2003-2010) (410 témoignages)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French