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G20 B57

BMW 3 Series · Sedan · 2019–

Modular 3.0L diesel six.

Production run

2019–now

Engines covered

5

Avg. part price

—

19902026

Interactive systems map

Inspect the G20 B57

Tap a hotspot to inspect that system

Systems map

Where it goes wrong

Each numbered hotspot counts the documented failure points in that area. Select one to see the specifics for this chassis and engine.

Failure points by system

Cooling1

Intake1

Electrical1

Exhaust3

Documented issues per engine

4

B46

4

B48

4

B58

4

B47

4

B57

Known weak points

What breaks on the G20 B57

AdBlue system faultsDiagnose →EGR coolerDiagnose →DPF regeneration on short tripsDiagnose →Turbo actuatorDiagnose →

Guides & playbooks

G20 B57 playbooks

Maintenance scheduleGive me a mileage-based maintenance schedule for a BMW 3 Series G20 B57, including the items the factory schedule skips.Buyer's inspectionI'm inspecting a used BMW 3 Series G20 B57. What exactly should I check, test drive and look for underneath?Build planPlan a staged performance build for a BMW 3 Series G20 B57 that stays reliable as a daily driver.Fault code lookupI have a fault code on my BMW 3 Series G20 B57. Walk me through what it means and how to confirm the cause.

Fits your G20 B57

Parts & tools

Full catalog & export

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