Powertrain families
M10/M20 petrol · M30/M88/S38 petrol · M21 diesel
5 Series (E28) — Sedan
1981–1987
Editorially reviewedReviewed 2026-08-10; market and model-year scope is stated in the record sources.
- Internal code
- E28
- Production
- April 1981 – December 1987
- Body style
- 4-door sedan
- Platform
- longitudinal layout · rear-wheel drive
Body variants
5 Series → E28 → Sedan
5 Series E28: history, design and engineering
How this generation came about, what made it different and how the selected sedan fits into the family.
E28 looked evolutionary, but it made the 5 Series much more technically ambitious. Better aerodynamics, expanded onboard electronics and a wider choice of engines turned the familiar four-door shape into a bridge between the mechanical 1970s and BMW's increasingly sophisticated 1980s cars.
Its range explored several ideas at once: the 524td introduced BMW's first production diesel, the 525e pursued low-rev efficiency, and the M535i and M5 offered two distinct interpretations of a fast executive saloon. Market differences are especially important because outputs and equipment varied widely.
E28 retained the single sedan body but broadened the identity of the 5 Series: 524td became BMW's first production diesel, 525e pursued low-speed efficiency, and M535i and M5 created two different performance levels. European, South African and North American M5/M535i specifications must be kept market-specific, as must catalyst, gearbox and bumper differences across the regular range.
1981–1988generation lifecycle
1body branches
3engine/drive families
11range designations
E28factory code
longitudinal layout · rear-wheel drivearchitecture
Sedan: dimensions and packaging
Dimensions can change with body, market and model year, so this page keeps them tied to the exact factory branch.
Length4,620 mm
Width1,700 mm
Height1,415 mm
Wheelbase2,625 mm
Luggage≈ 460 L
Fuel tank70 L
Seats5
Doors4-door sedan
| Body | Code | Production | Doors / seats | Length | Luggage |
|---|---|---|---|---|---|
| Sedan | E28 | 1981–1987 | 4-door sedan / 5 | 4,620 mm | ≈ 460 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 sedan applications; output and availability remain market- and model-year-specific.
| Model | Years | Engine | Output | Transmission | Drive | Market | Source |
|---|---|---|---|---|---|---|---|
| 518 / 518i | 1981–1987 | M10B18 | 90–105 PS | 4MT / 5MT / 3AT | RWD | Europe | BMW 5 Series Sedan (E28) |
| 520i | 1981–1987 | M20B20 | 125–129 PS | 5MT / 4AT | RWD | Global range | BMW 5 Series Sedan (E28) |
| 525e | 1981–1987 | M20B27 | 122–129 PS | 5MT / 4AT | RWD | Global range | BMW 5 Series Sedan (E28) |
| 525i / 528i | 1981–1987 | M30B25 / M30B28 | 150–184 PS | 5MT / 4AT | RWD | Global range | BMW 5 Series Sedan (E28) |
| 524d / 524td | 1983–1987 | M21D24 | 86–115 PS | 5MT / 4AT | RWD | Global range | BMW 5 Series Sedan (E28) |
| 535i / M535i | 1984–1987 | M30B34 | 182–218 PS | 5MT / 4AT | RWD | Global range | BMW 5 Series Sedan (E28) |
| M5 | 1984–1987 | M88/3 / S38B35 | 256 hp–286 PS | 5MT | RWD | Global range | BMW 5 Series Sedan (E28) |
Factory designations
518 · 518i · 520i · 524d · 524td · 525e · 525i · 528i · 535i · M535i · M5
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
- E28: 4,620 mm × 1,700 mm × 1,415 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.
E28 production
The second 5 Series generation entered production in April.
Diesel and M cars
524d/524td, M535i and the first M5 established new branches of the range.
First BMW diesel
The 524td introduced a turbocharged six-cylinder diesel to BMW series production.
Production end
Series production ended in December before E34 became the core 5 Series.
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
E28E28 remained a four-door sedan but substantially modernised the E12 concept with lighter construction, revised suspension and electronic engine management. Engines/drive: M10/M20 petrol, M30/M88/S38 petrol, M21 diesel.
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
- E28 — Sedan
- Range designations
- 518, 518i, 520i, 524d, 524td, 525e, 525i, 528i, 535i, M535i, M5
- Powertrain families
- M10/M20 petrol, M30/M88/S38 petrol, M21 diesel
- 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 5 Series (E28)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.
- 02BMW 5 Series Sedan (E28)BMW Group Classic
Official body format, production dates, diesel, M535i and M5 history.
Notes and limitations
- Bodies and long-wheelbase branches are separate; a commercial engine badge does not replace the factory body code.
- Modification output, transmission and drive describe the worldwide range; verify the exact market and production date through VIN-linked factory literature.
- M5 has its own technical identity and parallel BMW M catalog branch even when it uses a related 5 Series body shell.
2 primary references · market differences documentedPhotography: OSX, Public domain · 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