BMW Knowledge Base

Technical articles, diagnostic guides and deep dives into problem BMW components.

951 articles in the base · updated regularly

All Cooling System 22 OBD-II Diagnostics 34 Transmission 16 Buying Guide 60 Engine Mechanical 377 Car Overview 327 Maintenance 47 Suspension 1 Electrical System 24

Engine series:

All B47 B48 B57 B58 N20 N47 N52 N57 S55 S58

Engine Mechanical ⚡ Express

S58 Engine Tuning: Stage 2, 600+ hp, and Safe BMW Power Upgrades

How to safely take the S58 past 600 whp with a Stage 2 build. The mandatory hardware: downpipe, intercooler, charge pipe. BM3 vs. MHD tuning advice, plus a checklist for buying a modified BMW.

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Engine Mechanical ⚡ Express

BMW S58B30: Complete Guide to the Engine, Problems, and Maintenance

A complete guide to the BMW S58B30: specifications, common problems (cooling system, oil consumption, rear subframe squeak), maintenance intervals, and a used-car buying checklist. Find out whether a BMW with this engine is worth buying.

Engine Mechanical ⚡ Express

BMW S58: Reliability, Problems, and Tuning for the M3/M4 Engine (2022–2026)

The BMW S58 (2022–2026) sets a new standard for M engines. Here's what owners need to know about longevity, common problems, maintenance, and tuning on the M3, M4, X3 M, and X4 M.

Engine Mechanical ⚡ Express

The Complete Guide to the BMW S58 Engine: Maintenance, Problems, and Owner Tips

The complete guide to the BMW S58 engine: technical highlights, common problems, the maintenance schedule, and expert advice from BimmerBrain. Find out how to extend the life of your engine and avoid costly repairs.

Engine Mechanical ⚡ Express

BMW M4 (G82/G83): Complete S58 Engine Breakdown, Problems, and Ownership Secrets

A complete breakdown of the BMW M4 G82/G83: S58 engine specs, common problems (oil consumption, leaks, electronics), maintenance advice, and a checklist for buying a used car. Based on BimmerBrain expertise.

Engine Mechanical ⚡ Express

BMW G82 M4 (S58): Complete Guide to the Engine, Problems, and Maintenance

A complete guide to the BMW G82 M4 and its S58 engine: design, common problems, maintenance advice, and a pre-purchase checklist. Learn how to extend the engine's life and avoid costly repairs.