BMW 3 Series E46

The BMW E46 is the fourth generation of the 3 Series, and BMW's own current history gives the broad generation as 1998–2006. BMW Group Classic separately dates total E46-family production from December 1997 to November 2006 and says the Saloon reached the market in May 1998. Production start, public launch and successor timing are different milestones rather than conflicting dates. The E46 was also a family of different body styles, and they did not all enter or leave production at the same time.

The body-by-body production windows explain why an E46 Sedan can have a late-1997 production date while BMW still describes the generation as beginning in 1998, and why the E46 Convertible continued after the replacement E90 Sedan had already arrived. If you are identifying or buying a particular car, use its body style, build date and exact derivative rather than treating E46 as one fixed specification.

BMW E46 years: why 1998–2006 is only the starting point

BMW Group describes the fourth-generation 3 Series as BMW E46, 1998–2006. BMW Group Classic's body-specific records give a more precise picture:

Those are production periods, not one set of UK showroom launch dates. For example, specialist UK chronology places the E46 Saloon on sale here in September 1998, the Coupé in March 1999, Touring in September 1999 and Convertible in May 2000.

The 1998–2006 label describes the E46 generation well, but a VIN/build record is the better way to date an individual car.

E46 body styles: Sedan, Coupé, Touring, Convertible and Compact

The E46 range became broader than the simple idea of one 3 Series shell with different engines.

The Sedan was the standard four-door body. BMW Group Classic says almost two million were sold and notes that the design was created under Chris Bangle's leadership. It carried the familiar E46 details most people associate with the generation: the kidney grilles integrated into the bonnet and the curved lower edge of the front lamps.

The Coupé arrived as a distinct body. BMW describes it as longer and wider than the previous E36 Coupé, with a more inclined windscreen and a sportier chassis setup than the contemporary Saloon. Just under 450,000 were made at Regensburg, according to BMW Group Classic.

The Touring added the estate body, including the separately opening rear window that became a distinctive BMW Touring feature. BMW Group Classic records more than 400,000 E46 Tourings from Regensburg.

The Convertible joined the family in 2000. BMW says it shared the Coupé's bodywork up to the A-pillar but used a different rear structure and folding fabric roof. A hardtop was available from 2001, and from 2003 BMW offered a fully automatic roof mechanism across the Convertible range.

The Compact was the short hatchback branch. BMW Group Classic describes it as 21 cm shorter than the Sedan, with its own styling and a sportier chassis position. Almost 200,000 were produced before BMW replaced this part of the range with the 1 Series.

BMW E46 specifications: dimensions and chassis

There is no single specification sheet that safely describes every E46. Body style, engine, drivetrain, brakes, wheels and kerb weight all vary, so a useful generic answer needs to say what the figures apply to.

For a representative 2001 BMW 320d Saloon, BMW archival technical data gives 4,471 mm length, 1,739 mm width, 1,415 mm height and a 2,725 mm wheelbase. That same 320d data lists 1,415 kg DIN unladen weight, 205/55 R16 tyres and disc brakes front and rear. The dimensions are a useful Saloon reference; the weight, tyres and braking specification are derivative-specific rather than universal E46 numbers.

BMW's own retrospective history makes the body variation clear. It describes the E46 Coupé as 17 mm longer, 18 mm wider and 46 mm lower than its four-door sibling, while the Compact retained the E46 wheelbase but was 21 cm shorter than the Sedan. In other words, a search for “BMW E46 specs” should be narrowed by body and engine before comparing exact weight, output, tyre or brake figures.

Period BMW material also shows the chassis evolving during the generation. For the 2002 model-year Saloon and Touring update, BMW revised spring and damper settings, used stiffer suspension-to-body mountings and fitted a faster steering rack requiring three turns lock-to-lock. Six-cylinder cars received DSC III as standard, while 330i and 330d models used 17-inch wheels in that UK specification. These are useful period markers, not a claim that every E46 left the factory with the same chassis equipment.

E46 engines and drivetrains

There is no single E46 engine. The generation covers a wide range of four- and six-cylinder petrol engines and several diesels, with important changes during its life.

BMW's generation history lists the early 318i, 320i, 323i and 328i petrol cars alongside the 320d, which BMW describes as its first diesel with direct injection. In 2000 the six-cylinder petrol range changed: the 325i and 330i joined the line-up, while the 330d brought common-rail diesel technology.

In 2001 BMW introduced VALVETRONIC in the 316ti Compact. The technology varied valve lift to control engine load and was one of the significant engine-management developments associated with the later E46 period.

Rear-wheel drive remained the normal E46 layout, but it was not universal. BMW says that from 2000 the Sedan and Touring could also be ordered with all-wheel drive. That is another reason not to put one drivetrain description against every E46.

Engine availability also varied by body, market and year. The generation-level chronology belongs here; exact power, gearbox and engine-code questions belong with the specific derivative you are looking at.

Was the E46 facelift in 2001 or 2003?

Both dates can be correct because BMW revised the E46 body styles at different times.

For the UK, there is now unusually clear period evidence for the first change. In a BMW (GB) release dated 28 June 2001, BMW said the 3 Series Saloon and Touring would receive a fresh new face in September 2001. It listed a new kidney grille, revised front and rear valances, new headlight and indicator treatment and a repositioned side repeater; the Saloon also received a revised rear lamp cluster. The same release says the Coupé and Convertible remained unchanged at that point.

The September update was more than a styling exercise. BMW also announced revised suspension settings and steering, a new Valvetronic 318i and the common-rail 150 bhp 320d. BMW Group Classic's 320i Touring and 320d Touring records independently show their engine specifications changing from September 2001, while its 323i Sedan record directly calls September 2001 the E46 Sedan facelift.

The Coupé and Convertible changed later. UK specialist chronology dates their facelift to March 2003, while BMW Group Classic independently records the Coupé as redesigned in 2003. The later two-door cars received revised lights, grille, bonnet and front bumper, with LED rear lamps among the visible changes.

So facelift E46 is not a complete identification on its own. Establish the body style and build date first: a September-2001 Saloon/Touring change and a 2003 two-door change can both be correct.

The E46 M3

The E46 also produced one of the best-known M3 generations. BMW's history gives the M3 a 3.2-litre inline-six producing 252 kW / 343 hp, with the Convertible joining from 2001.

That performance branch deserves separate treatment because its engine, transmission choices and maintenance history are not representative of an ordinary 318i, 330i or 330d. Use the dedicated BMW E46 M3 Coupé reference and BMW E46 M3 Convertible reference for body-specific specification.

The focused Guides cover rear axle carrier panel inspection, rod-bearing service-action evidence and SMG II versus manual. Those subjects are M3-specific and should not be projected across the ordinary E46 range.

How many BMW E46s were made?

BMW says that by 2006 it had built 3,266,885 fourth-generation 3 Series vehicles. That makes the E46 one of the largest-production 3 Series generations rather than a rare model in itself.

The body-specific totals provide context. BMW Group Classic says the Sedan accounted for almost two million cars, the Coupé just under 450,000, the Touring more than 400,000 and the Compact almost 200,000. Exact rarity claims for an engine, gearbox, colour or market need more specific evidence than those broad totals.

What should you inspect before buying an E46?

At this age, condition and history usually matter more than a simple badge hierarchy. The right inspection also depends on the body and engine, but there are several sensible E46-wide themes.

Check corrosion rather than assuming a modern BMW cannot rust. Classics World highlights front wings and wheelarch lips, rear arches and the sill area as places worth inspecting. Plastic sill covers can hide what is happening underneath, so a clean exterior is not the end of the check.

Look closely at the cooling system on petrol six-cylinder cars. Thermostat and heater-valve faults, leaks and poor bleeding are among the age-related issues specialists see. A history showing sensible preventative work is more useful than a seller simply saying the temperature gauge sits in the middle on a short test drive.

Listen for suspension wear. Front control-arm bushes, anti-roll-bar links and rear trailing-arm bushes are all normal age-related inspection points. Clunks or vague movement should be diagnosed rather than dismissed as just an old BMW.

Test the gearbox that is actually fitted. The normal manual and Steptronic automatic units have different service questions, and the M3's SMG II is a separate system again. Establish the derivative before applying internet advice about transmission problems.

Use body-specific checks. On a Touring, operate the tailgate, separate glass hatch and rear wiper; wiring where it passes through the hinge area can age and break. On a Convertible, cycle the roof fully and inspect the fabric, seals and signs of water ingress. On a Coupé, check frameless-window operation and the condition of the door seals.

Check electrical and interior functions. Age-related faults such as the heater blower final-stage resistor are well documented, and a car with numerous small electrical problems often deserves a more careful look at how it has been maintained overall.

None of these points means every E46 has every fault. They are places to inspect before deciding whether a particular car's condition and records support the asking story.

E46, E36 and E90: why the generations overlap

The E46 did not replace every E36 body on one day, and the E90 did not replace every E46 body at once either.

BMW's broad history dates the preceding E36 generation to 1990–2000 and the E46 to 1998–2006. The overlap makes sense once the different body launches are considered. The E46 Sedan arrived first while some E36 derivatives continued for longer.

The same happened at the other end of the E46's life. The E90 Sedan arrived in 2005, while BMW Group Classic records E46 Coupé production to May 2006 and E46 Convertible production to November 2006. Generation names identify the family, but body and build date still matter when identifying a real car.

The wider BMW 3 Series reference puts E46 into the complete model chronology.

TMJC E46 context

TMJC has handled an E46 M3 Cabriolet. A surviving Car & Classic syndication attributed to Matt Johnston / The Matt Johnston Collection records a 2003 example with low recorded mileage and a six-speed transmission, while the aggregator's category labels it Automatic.

The individual car demonstrates why the exact derivative and equipment should be verified rather than treating a classified category as engineering truth. It is not evidence that every E46 M3, every E46 Convertible or the wider generation shares that car's mileage, market specification, gearbox or service history.

A current first-party TMJC archive page for that car could not be located, so the syndicated listing is kept as historical dealer context rather than used as the authority for E46 specification.

Sources and further reading

• BMW Group — BMW 3 Series celebrates 50 years
• BMW Group Classic — BMW 3 Series Sedan (E46)
• BMW Group Classic — BMW 3 Series Coupé (E46)
• BMW Group Classic — BMW 3 Series Touring (E46)
• BMW Group Classic — BMW 3 Series Convertible (E46)
• BMW Group Classic — BMW 3 Series compact (E46)
• BMW Group Classic — BMW 323i (E46), including the September 2001 Sedan facelift
• BMW (GB) — 3 Series: The Best Gets Better, June 2001
• BMW Group Classic — BMW 320i Touring (E46)
• BMW Group Classic — BMW 320d Touring (E46)
• Classics World — BMW 3 Series (E46) buyer's guide