Powertrain families
N52 petrol I6 · N62 petrol V8 · N73 petrol V12 · M57 diesel I6 · M67 diesel V8 · hydrogen V12
7 Series (E65/E66) — Long-wheelbase Sedan
2001–2008
Editorially reviewedReviewed 2026-08-10; market and model-year scope is stated in the record sources.
- Internal code
- E66
- Production
- E66 long-wheelbase production from 2001 to 2008
- Body style
- 4-door long-wheelbase sedan
- Platform
- longitudinal layout · rear-wheel drive
Body variants
7 Series → E65/E66 → Long-wheelbase Sedan
7 Series E65/E66: history, design and engineering
How this generation came about, what made it different and how the selected long-wheelbase sedan fits into the family.
E65 was a deliberate reset for the 7 Series. Its exterior broke with the restrained E38, while the cabin replaced rows of separate controls with the first production version of iDrive. The learning curve was steep, but the basic idea of a central digital interface shaped every later large BMW.
Underneath, the generation introduced a new level of networked electronics, comfort systems and active chassis technology. E65 denotes the standard-wheelbase saloon and E66 the extended version; engine, rear-seat equipment and facelift changes then create further boundaries within each body.
E65 and E66 separate standard and 140 mm longer bodies, while security, special-production and Hydrogen 7 derivatives add further identities without replacing those base shells. The 2005 update changed exterior design, iDrive hardware and important parts of the engine range, so pre- and post-update control units, lighting and powertrains must be dated rather than blended.
2001–2008generation lifecycle
2body branches
6engine/drive families
11range designations
E65/E66factory code
longitudinal layout · rear-wheel drivearchitecture
Long-wheelbase Sedan: dimensions and packaging
Dimensions can change with body, market and model year, so this page keeps them tied to the exact factory branch.
Length5,179 mm
Width1,902 mm
Height1,491 mm
Wheelbase3,130 mm
Luggage500 L
Fuel tank88 L
Seats5
Doors4-door long-wheelbase sedan
| Body | Code | Production | Doors / seats | Length | Luggage |
|---|---|---|---|---|---|
| Sedan | E65 | 2001–2008 | 4-door sedan / 5 | 5,039 mm | 500 L |
| Long-wheelbase Sedan | E66 | 2001–2008 | 4-door long-wheelbase sedan / 5 | 5,179 mm | 500 L |
Engines and powertrains
The generation could span very different engines and drivetrains. The table keeps output, gearbox, market and production period together.
Factory modification matrix
Documented long-wheelbase sedan applications; output and availability remain market- and model-year-specific.
| Model | Years | Engine | Output | Transmission | Drive | Market | Source |
|---|---|---|---|---|---|---|---|
| 730i / 730Li | 2001–2008 | M54 / N52 petrol I6 | 231–258 PS | 6AT | RWD | Global range | The history of the BMW 7 Series |
| 735i / 740i / Li | 2001–2008 | N62 V8 | 272–306 PS | 6AT | RWD | Global range | The history of the BMW 7 Series |
| 745i / 750i / Li | 2001–2008 | N62 V8 | 333–367 PS | 6AT | RWD | Global range | The history of the BMW 7 Series |
| 760i / 760Li | 2002–2008 | N73B60 V12 | 445 PS | 6AT | RWD | Global range | The history of the BMW 7 Series |
| 730d / 740d / 745d | 2002–2008 | M57 I6 / M67 V8 diesel | 218–330 PS | 6AT | RWD | Europe | The history of the BMW 7 Series |
| Hydrogen 7 | 2006–2008 | N73B60 dual-fuel V12 | 260 PS | 6AT | RWD | Global range | The history of the BMW 7 Series |
Factory designations
730i · 735i · 740i · 745i · 750i · 760i · 730d · 740d · 745d · Hydrogen 7 · Li derivatives
Petrol engines
Inline and V engines are grouped by engine family, displacement, induction system and emissions specification.
Diesel derivatives
Where diesels were offered, output, injection generation and emissions hardware are recorded market by market.
How power reaches the road
Gearboxes, driven wheels and final-drive hardware changed with engine, market and production date.
Transmissions
Gearbox type and unit code follow engine, market and production date. Gear count alone does not identify the transmission.
Driven wheels
Catalog architecture: longitudinal layout · rear-wheel drive. All-wheel-drive availability and hardware remain derivative-specific.
Final drive
Ratio, differential type and electronic control belong to the exact derivative and can differ on performance models.
What changed underneath
Suspension, brakes, safety systems and electronics evolved across the range, even when cars shared the same basic architecture.
Body-branch dimensions
- E65: 5,039 mm × 1,902 mm × 1,491 mm
- E66: 5,179 mm × 1,902 mm × 1,491 mm
Body & suspension
- Mounting points and geometry follow the body branch
- Springs and dampers follow axle load and chassis package
- Wheels and permitted loads follow the factory label
Brakes & steering
- Brake size follows engine and equipment
- Assistance type and steering ratio can change
- ABS/DSC generation follows model year
Passive safety
- Airbag count varies by market and year
- SRS parts are VIN-specific
- Structural repairs require factory procedures
Electronics
- Vehicle-bus generations changed during production
- Control-unit software levels must remain compatible
- Retrofits are recorded separately from factory equipment
How the generation evolved
The important launches, additions and updates did not always happen at the same time for every body or market.
E65/E66 and iDrive
Standard and long bodies launched with the first-generation iDrive concept.
LCI and Hydrogen 7
A substantial update reshaped the range; the limited Hydrogen 7 followed on E66 architecture.
Comprehensive facelift
BMW revised the exterior, iDrive operation, chassis tuning and much of the powertrain range.
Production end
The fourth generation gave way to F01/F02.
The versions that stood apart
Performance models, option packages and regional editions may look related, but their engineering and production identity can be very different.
Sedan
E65E65 was the standard-wheelbase fourth-generation sedan and introduced the original iDrive control concept, a new electrical architecture and six-speed automatic transmissions. Engines/drive: N52 petrol I6, N62 petrol V8, N73 petrol V12, M57 diesel I6, M67 diesel V8, hydrogen V12.
Long-wheelbase Sedan
E66E66 was the separately coded long-wheelbase body, 140 mm longer between the axles than E65 and focused on rear-seat equipment. Engines/drive: N52 petrol I6, N62 petrol V8, N73 petrol V12, M57 diesel I6, M67 diesel V8, hydrogen V12.
Inside the car
Cabin technology and standard equipment changed by country and year; a build sheet remains the best guide to one individual car.
Cabin & comfort
- Trim and seats follow option codes
- Climate systems vary by market
- Audio and navigation changed by model year
Lighting & assistance
- Lamp technology and modules follow production date
- Driver assistance cannot be inferred from buttons alone
- Regional rules affect lighting and warnings
What to check today
A practical starting point for inspecting and maintaining a car from this generation — not a diagnosis of an individual example.
Identify first
- Match VIN on body and documents
- Obtain the factory option list
- Confirm market and production date
Inspect the structure
- Check repairs and corrosion
- Assess suspension, brakes and tyres
- Compare fitted parts with factory specification
Mechanical history
- Read faults with compatible diagnostics
- Verify engine and transmission maintenance
- Separate invoices from unsupported verbal history
| Item | Interval / trigger | Catalog note |
|---|---|---|
| Engine oil & filter | CBS/factory schedule; time and mileage for historic cars | Oil approval follows the exact engine and market. |
| Brake fluid | Time-based factory schedule | ABS/DSC-compatible bleeding procedure is required after hydraulic work. |
| Coolant | Factory schedule and condition | Fluid specification and bleeding method are generation-specific. |
| Transmission & final drives | Unit type and operating conditions | Use the exact approved fluid; no one interval fits every derivative. |
How to identify the exact car
The badge and registration year tell only part of the story; production date, body code, engine and factory options complete it.
- Factory body codes
- E65 — Sedan; E66 — Long-wheelbase Sedan
- Range designations
- 730i, 735i, 740i, 745i, 750i, 760i, 730d, 740d, 745d, Hydrogen 7, Li derivatives
- Powertrain families
- N52 petrol I6, N62 petrol V8, N73 petrol V12, M57 diesel I6, M67 diesel V8, hydrogen V12
- VIN
- Identifies model, plant and production branch and keys the parts catalog and factory equipment record.
- Production date
- More useful than first-registration year when choosing parts and locating technical revisions.
- Type code
- Refines engine, body, market and transmission combination.
- Option codes
- Confirm factory equipment; later retrofits are recorded separately.
- Unit number
- Supports engine or gearbox originality checks and component applicability.
Where the information comes from
The story is mapped through English Wikipedia and its bibliography, then important dates and technical claims are checked against BMW material.
- 01BMW 7 Series (E65)Wikipedia contributors
English-language secondary overview of the generation, body programme, powertrains and production chronology; key claims are cross-checked against the factory sources below.
- 02The history of the BMW 7 SeriesBMW Group PressClub
Official generation history and technology chronology.
- 03The all-new BMW iDrive — historyBMW Group PressClub
Official confirmation of the 2001 iDrive introduction in the 7 Series.
Notes and limitations
- Standard, iL/Li and the single G70 body are different body-level records; Executive or Highline equipment does not create a new body.
- Output, transmission and equipment depend on market and production date and require VIN-linked, dated factory literature.
3 primary references · market differences documentedPhotography: Christian Schütt at de.wikipedia, CC BY-SA 3.0 · Wikimedia Commons. Rights checked 2026-08-06; wikimedia commons 1,800 px derivative downloaded; local 640 px and 1,280 px avif versions created without cropping.Updated 6 August 2026