BMW 3 Series service schedule
Use the manufacturer schedule for your exact engine and year, then log every service with mileage in The Owners Club so intervals and Full Service History stay proven.
Official schedule
We don't have an official schedule URL for this model yet. Follow your handbook / dealer interval and record each service in your digital garage.
UK service interval
BMW 3 Series UK servicing is Condition Based Service (CBS) and VIN-led — confirm the iDrive service menu and BMW schedule. Focus on oil/CBS, brake fluid, plugs, filters, brakes, tyres (xDrive matching), coolant, gearbox/diff/transfer case where applicable, 48V/PHEV/BEV items where fitted, software and recalls. Always tag generation: E21 · E30 · E36 · E46 · E90 · F30 · G20 · G50. Never merge I01 i3 hatch procedures into Neue Klasse i3 Saloon. Never treat 4 Series as a current 3 Series body for service identity.
Intervals are whichever comes first (miles or months) unless noted. They vary by engine, model year, market and service regime. Confirm in the handbook, service booklet or dealer system for your VIN before you book work.
| Service | Miles | Months | Notes |
|---|---|---|---|
| Engine oil & filter (CBS) — ICE/PHEV | CBS / typically ~10,000–12,000 | Often annual (confirm iDrive) | Generation-aware CBS — E21–G50. Oil grade is engine-code specific. BEV (i3 Saloon) uses HV/drive-unit items instead. |
| Brake fluid | — | CBS (often ~24 months) | Calendar replacement — moisture absorption continues regardless of pad wear. |
| Spark plugs (petrol / PHEV) | Per handbook | Per handbook / CBS | Petrol/PHEV only — confirm interval for this engine code and generation. |
| Air filter / cabin (micro) filter | — | CBS / often 12 for cabin | Common annual habit — confirm VIN. |
| Brake pads / discs | — | Every service / as worn | Inspect wear and corrosion; log with mileage. M/M Performance packages differ. |
| Tyres, pressures & alignment (xDrive matching) | Regular | Every service | xDrive needs matched tyre circumference/brand — note drivetrain. EV AWD separate. |
| Coolant / cooling system check | — | Per BMW schedule | ICE and PHEV thermal loops differ — generation and engine-family specific. |
| Gearbox / differential / xDrive transfer case | Per gearbox & handbook | Per gearbox & handbook | ZF/Steptronic/DCT families differ — log codes. Transfer-case service where applicable. |
| PHEV HV / charging · BEV i3 Saloon HV items | — | Per BMW schedule / campaigns | UK 330e ~19.5 kWh / 11 kW AC framing is market-labelled. Never merge I01 hatch procedures. |
| 48V mild-hybrid system (where fitted) | — | Per BMW schedule / campaigns | G20 M340i and other 48V cars — small aux pack, not PHEV HV service. |
| Software / iDrive / OS version check | — | At service or when prompted | Record version and date — Panoramic iDrive / OS X on G50. |
| Recall / campaign check | — | At every service | VIN + market + generation specific — airbags, software, drivetrain, ADAS. |
Model years
- 1975–1983 (E21): Gen 1 RWD two-door. Age-based rubber/cooling/corrosion care. Do not apply modern CBS/xDrive/PHEV rows.
- 1982/83–1994 (E30): Gen 2 — four-door, Touring, Convertible, 325iX, first M3. Body-specific end years.
- 1990–1999 (E36): Gen 3 — Saloon/Coupé/Touring/Convertible/Compact. Compact ≠ later 1 Series.
- 1998–2006 (E46): Gen 4 — common-rail diesels, M3 six. Cooling/VANOS/subframe themes are engine/body specific.
- 2005–2013 (E90/E91/E92/E93): Gen 5 — last 3 Series Coupé/Convertible before 4 Series split. N47 themes are engine-code specific.
- 2011/12–2019/20 (F30/F31/F34/F35): Gen 6 — GT and China LWB bodies distinct. ActiveHybrid 3 / early 330e. LCI is a stage.
- 2018/19–2026 (G20/G21/G28): Gen 7 CLAR — UK 320i / 330e / M340i xDrive labelled examples; 48V and PHEV. Confirm VIN schedule.
- 2026– (G50/G51 Neue Klasse + i3 Saloon): Gen 8 — not a G20 facelift. ICE + first electric 3 Series (i3 Saloon). I01 hatch is a different car.
UK notes
- BMW Condition Based Service drives item timing — trust iDrive and the retailer printout for your VIN over forum “every X miles” advice. Always record generation (E21–G50) and powertrain.
- UK G20/G21 330e (~19.5 kWh, 11 kW AC, ~60–63 mile e-range) and M340i xDrive (392 hp / 540 Nm / 48V) figures are market-labelled — do not universalise to every VIN or market.
- Never merge I01 BMW i3 hatch service advice into Neue Klasse i3 Saloon. Never treat 4 Series as a current 3 Series body for service identity.
- Intervals are whichever comes first (miles or months) unless noted. They vary by engine, model year, market and service regime. Confirm in the handbook, service booklet or dealer system for your VIN before you book work. Legal note: Service intervals and specifications shown are indicative and collected from public or community sources. Official schedules may vary by model year, engine code, market, or dealer updates. Always verify the vehicle handbook (VIN) or consult an authorised dealer before work.
FAQ
- How often should you service a BMW 3 Series in the UK?
- Follow CBS prompts in iDrive and the BMW handbook for your VIN. UK owners typically see annual / ~10,000–12,000-mile oil services with separate CBS items for brake fluid and microfilter. Tag generation (E21–G50) and powertrain on every stamp.
- Does a 330e need different servicing from a 320i?
- Yes. PHEV cars add high-voltage battery, charging and thermal-management checks and have different boot packaging. Keep HV records separate from 12V and never invent SoH claims without diagnostics.
- Is G50 serviced the same as G20?
- No. G50 is the eighth generation on Neue Klasse architecture with different software (OS X) and electric derivatives. Confirm the VIN schedule — do not assume continuous G20 procedures.
Official sources
Never miss an interval
Add your 3 Series to The Owners Club and set reminders for oil, Haldex, DSG fluid or cambelt — with mileage attached to every job.