BMW 3er G20
Weaknesses, engine ratings and buying advice
480–510 PS
3.0L Biturbo Benzin
550 hp, xDrive, CSL technology in the saloon
Legendary!Body Variants
The BMW 3er G20 is available as Limousine and Touring — choose your body type for specific insurance data:
Generations
Engine Overview
The BMW 3er G20 is available with 13 engine variants — from 116 to 510 hp. 5 variants had engine changes — the model year is crucial.
The BMW 318d (Diesel, 143–150 PS) comes with 2 different engines: B47D20 (2019–2026, Be Careful) und B47D20 (2019–2026, Be Careful). Pay attention to the model year for the 318d!
The BMW 320d (Diesel, 184–190 PS) comes with 2 different engines: B47D20 (2019–2026, Be Careful) und B47D20 (2019–2026, Be Careful). Pay attention to the model year for the 320d!
The BMW 320d xDrive (Diesel, 190 PS) has the B47D20 (2.0L Diesel) — rated: "Be Careful", 6 known weaknesses.
The BMW 330d (Diesel, 258–265 PS) comes with 2 different engines: B57D30 (2019–2026, Be Careful) und B57D30 (2019–2026, Be Careful). Pay attention to the model year for the 330d!
The BMW M340d xDrive (Diesel, 340 PS) has the B57D30 (3.0L Diesel) — rated: "Be Careful", 5 known weaknesses.
The BMW 318i (Benziner, 156 PS) has the B48B20 (2.0L Turbo) — rated: "Be Careful", 6 known weaknesses.
The BMW 320i (Benziner, 184–211 PS) comes with 2 different engines: B48B20 (2019–2026, Be Careful) und B48B20 (2019–2026, Be Careful). Pay attention to the model year for the 320i!
The BMW 330i (Benziner, 252–258 PS) comes with 2 different engines: B48B20 (2019–2026, Be Careful) und B48B20 (2019–2026, Be Careful). Pay attention to the model year for the 330i!
The BMW 340i (Benziner, 326 PS) has the B58B30 (3.0L Turbo) — rated: "Be Careful", 12 known weaknesses.
The BMW M340i (Benziner, 360 PS) has the B58B30 (3.0L Turbo) — rated: "Be Careful", 12 known weaknesses.
The BMW M340i xDrive (Benziner, 374 PS) has the B58B30 (3.0L Turbo) — rated: "Be Careful", 12 known weaknesses.
The BMW 330e (Benziner Plug-in-Hybrid, 292 PS) has the B48B20 (2.0L Turbo) — rated: "Be Careful", 6 known weaknesses.
The BMW 330e xDrive (Benziner Plug-in-Hybrid, 292 PS) has the B48B20 (2.0L Turbo) — rated: "Be Careful", 6 known weaknesses.
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| 48V mild hybrid system fault On vehicles with the 48V mild hybrid system (320d, 330d, M340d), fault messages appear: 'Battery cannot be charged' or 'Do not continue driving'. Issue usually lies in the 48V sub-network. Symptoms: Warning 'Battery cannot be charged' on display, possible interruption of driving, power loss under certain conditions. from 60,000 km | High | |
| Curved display — static and image distortion The curved display module shows sporadic static image interference. Warranty replacement at around 5,000 € list price. Occurs on vehicles with under 2,000 km. Symptoms: Flickering or static image distortion on the display, sometimes visible when starting or shutting down. from 5,000 km | High | |
| ConnectedDrive / My BMW app connection drops Many G20 drivers report being repeatedly logged out of the My BMW app and ConnectedDrive. Software updates only fix the problem temporarily — a known systematic issue. Symptoms: App connection drops repeatedly, constant re-login required, online services temporarily unavailable. | Low |
Top Reported Issues
Alternatives
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Known Problems and Issues
A total of 51 weaknesses have been documented for the BMW 3er G20 (2019–2026) — 38 engine-related and 13 vehicle-related. Typical issues affect Electronics, Suspension, Steering, Brakes.
3er (B47D20, 2019–2026) — Be Careful: Timing chain elongation on early models (2014–2016), EGR cooler leak with fire risk (recall), DPF clogging with short-trip use. Power: 143–150 PS.
3er (B47D20, 2019–2026) — Be Careful: Timing chain elongation on early models (2014–2016), EGR cooler leak with fire risk (recall), DPF clogging with short-trip use. Power: 184–190 PS.
3er (B57D30, 2019–2026) — Be Careful: EGR cooler failure, Timing chain elongation on early models, Turbocharger bearing damage at high mileage. Power: 258–265 PS.
3er (B57D30, 2019–2026) — Be Careful: EGR cooler failure, Timing chain elongation on early models, Turbocharger bearing damage at high mileage. Power: 340 PS.
3er (B48B20, 2019–2026) — Be Careful: Timing chain guide rail breaks, Oil filter housing leaking — coolant loss, Coolant bleed line at cylinder head breaks. Power: 156–163 PS.
3er (B48B20, 2019–2026) — Be Careful: Timing chain guide rail breaks, Oil filter housing leaking — coolant loss, Coolant bleed line at cylinder head breaks. Power: 184 PS.
3er (B48B20, 2019–2026) — Be Careful: Timing chain guide rail breaks, Oil filter housing leaking — coolant loss, Coolant bleed line at cylinder head breaks. Power: 252–258 PS.
3er (B48B20, 2019–2026) — Be Careful: Timing chain guide rail breaks, Oil filter housing leaking — coolant loss, Coolant bleed line at cylinder head breaks. Power: 211 PS.
3er (B58B30, 2019–2026) — Be Careful: Oil filter disintegrates — engine damage risk, Plastic oil filter housing cracks — coolant/oil mixing, PCV valve / valve cover membrane failed. Power: 374 PS.
3er (B58B30, 2019–2026) — Be Careful: Oil filter disintegrates — engine damage risk, Plastic oil filter housing cracks — coolant/oil mixing, PCV valve / valve cover membrane failed. Power: 360 PS.
3er (B58B30, 2019–2022) — Be Careful: Oil filter disintegrates — engine damage risk, Plastic oil filter housing cracks — coolant/oil mixing, PCV valve / valve cover membrane failed. Power: 326 PS.
3er (S58B30, 2023–2026) — Be Careful: Oil cooler leaking from stone impact, Connecting rod bearing wear with tuning, Main bearing shells recall (manufacturing defect 2021). Power: 530 PS.
3er (B48B20, 2019–2026) — Be Careful: Timing chain guide rail breaks, Oil filter housing leaking — coolant loss, Coolant bleed line at cylinder head breaks. Power: 184 PS.
What to watch out for with the BMW 3er? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
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Last updated: February 2026 · All information without guarantee