BMW 3er-Reihe G20/G21/G80 330i, 258 PS, 8-speed automatic, all-wheel drive (2019–2022)
- Power
- 258 PS (190 kW)
- Engine codes
- B48B20B
- Gearbox
- 8-speed automatic
- Production years
- 2019–2022
- Running cost per month
- €551
- Fuel
- Petrol (98)
- Median price
- €28,500
- Reliability
- 2/5
- DIY
- 2/5
Research for this car
- Generation guide BMW 3 Series G20/G21 (since 2019): known problems and buying guide
Several recalls, some with fire risk, plus steering and suspension wear. Prove the recall work by VIN and test the steering before you buy.
- Gearbox guide ZF 8HP 8-speed automatic (BMW Steptronic): problems, costs and what to check
A solid 8-speed when its fluid is changed on time. Buy with oil records and a clean scan, and avoid one that shudders or has run in limp mode.
Known issues for this car
| Issue | Affects | Typical km | Repair cost | Source |
|---|---|---|---|---|
| Steering knocks and rack wear | All G20 and G21 | About 100,000 km | No confirmed price | Generation guide |
| Suspension ball joints and bushings | All G20 and G21 | 60,000-120,000 km | No confirmed price | Generation guide |
| iDrive screen reboots and navigation crashes | iDrive 7 cars, 2019 to summer 2022 | Not stated | 0-150 EUR for the software update (fahrzeugschein.de, year not stated) | Generation guide |
| Harsh, delayed or jerky shifts | All 8HP cars, worst with old fluid | 60,000 to 120,000 km | 350 to 650 USD fluid service (US, 2026) | Gearbox guide |
| Valve body and solenoid faults | All 8HP cars | 100,000 to 200,000 km without fluid changes | 1,800 to 2,800 USD mechatronic exchange (US, 2026) | Gearbox guide |
| Clutch packs and bushings wear | All 8HP cars, worst on first-generation 8HP45 and 8HP70 | Not stated | No confirmed price | Gearbox guide |
| Torque converter shudder | All 8HP cars | 180,000 to 300,000 km | No confirmed price | Gearbox guide |
| Connector sleeve leak | All 8HP cars | About 129,000 to 209,000 km | 700 to 1,500 USD sleeve seal repair (US, 2026) | Gearbox guide |
| Oil pan, filter and cooler-line leaks | All 8HP cars | From 150,000 km | No confirmed price; the pan comes with the oil service | Gearbox guide |
Before you buy this car
From the generation guide
- Recall check by VIN. Ask a BMW dealer to check the VIN for open campaigns: the 330e battery (2020 cars), the starter, the 48-volt starter-generator cables, the brake discs and the front belt buckle. Bad result: an open campaign, or no record of the work.
- Steering knocks. Drive slowly at full lock in both directions, then over a few bumps. Bad result: a knock or creak from the rack or the joints.
- Suspension (needs a lift). Ask a workshop to lift the car and check the ball joints and bushings for play. Bad result: play in a ball joint or worn bushings.
- Coolant (petrol and 330e). With the engine cold, check the coolant level and look for wet hoses under the expansion tank. Bad result: coolant to top up between services.
- iDrive. Start the car cold and check that the screen comes on within about 20 seconds, Bluetooth pairs and the navigation runs. Bad result: a reboot, a dropout or a frozen screen.
From the gearbox guide
- Read the gearbox fault memory with a BMW-capable scanner. Bad result: pressure or solenoid codes such as 4F84, 4F87, P189C or P0748, or a past limp mode.
- Ask for fluid and filter invoices. Bad result: no fluid change by 80,000 to 120,000 km, or a change without an adaptation reset.
- Drive the car from cold and select Drive and Reverse. Bad result: a hard 1-2 shift, or a delay of 1-3 seconds before the gear engages.
- Drive 15 minutes in town, then under load. Bad result: jerky 2-3 shifts, flaring, slipping or a burnt smell.
- Hold a steady light throttle at low speed. Bad result: a shudder or vibration, which points to the torque converter lock-up clutch.
- Look under the car on a lift. Bad result: oil at the wiring connector on the case, on the plastic pan or on the cooler lines.
Running costs
| Operational | €226 |
|---|---|
| Workshop | €137 |
| Fixed costs (tax, insurance) | €188 |
| Total per month | €551 |
| New-car depreciation (not included) | €118 |
ADAC figures for 15,000 km a year over 60 months
Market
Listings on mobile.de in this generation with this fuel, gearbox and power.
- Listings
- 176
- 25th percentile
- €25,885
- Median price
- €28,500
- 75th percentile
- €31,790
- Median mileage
- 83,100 km
- Median first registration
- 2020
- Dealer share
- 80.7%
Check a listing
Prices by first registration
| First registration | Listings | Median price | Median mileage |
|---|---|---|---|
| 2023 | 1 | – | – |
| 2022 | 35 | €30,888 | 74,042 km |
| 2021 | 41 | €29,900 | 79,000 km |
| 2020 | 46 | €28,370 | 85,006 km |
| 2019 | 53 | €26,900 | 94,074 km |
Medians only for years with at least 5 listings. Many cars are first registered after production ends, so years can run past the build years.
Price history
| Month | Listings | Median price | Middle half | Median mileage |
|---|---|---|---|---|
| Nov 2026 | 176 | €28,500 | €25,885 – €31,790 | 83,100 km |
| Oct 2026 | 176 | €28,500 | €25,885 – €31,790 | 83,100 km |
Median asking price at the last snapshot of each month.
ADAC versions
All 16 ADAC versions
| Version | Power | Body | Doors | Production years | Running cost per month |
|---|---|---|---|---|---|
| 330i Advantage xDrive Steptronic | 258 PS | Saloon | 4 | 2019–2020 | €575 |
| 330i Sport Line xDrive Steptronic | 258 PS | Saloon | 4 | 2019–2020 | €575 |
| 330i Luxury Line xDrive Steptronic | 258 PS | Saloon | 4 | 2019–2020 | €575 |
| 330i M Sport xDrive Steptronic | 258 PS | Saloon | 4 | 2019–2020 | €613 |
| 330i Advantage xDrive Steptronic | 258 PS | Saloon | 4 | 2020–2022 | €569 |
| 330i Sport Line xDrive Steptronic | 258 PS | Saloon | 4 | 2020–2022 | €569 |
| 330i Luxury Line xDrive Steptronic | 258 PS | Saloon | 4 | 2020–2022 | €569 |
| 330i M Sport xDrive Steptronic | 258 PS | Saloon | 4 | 2020–2022 | €607 |
| 330i Touring Advantage xDrive Steptronic | 258 PS | Estate | 5 | 2019–2020 | €532 |
| 330i Touring Sport Line xDrive Steptronic | 258 PS | Estate | 5 | 2019–2020 | €535 |
| 330i Touring Luxury Line xDrive Steptronic | 258 PS | Estate | 5 | 2019–2020 | €535 |
| 330i Touring M Sport xDrive Steptronic | 258 PS | Estate | 5 | 2019–2020 | €574 |
| 330i Touring Advantage xDrive Steptronic | 258 PS | Estate | 5 | 2020–2022 | €528 |
| 330i Touring Sport Line xDrive Steptronic | 258 PS | Estate | 5 | 2020–2022 | €528 |
| 330i Touring Luxury Line xDrive Steptronic | 258 PS | Estate | 5 | 2020–2022 | €528 |
| 330i Touring M Sport xDrive Steptronic | 258 PS | Estate | 5 | 2020–2022 | €566 |