BMW Knowledge Base

BMW X7 G07 xDrive40i: Long-Term Ownership and B58 Engine Reliability

BMW 3 Series G20 330i: Buyer’s Guide

BMW 330i G20 Buyer’s Guide: Reliability, Weak Spots, What to Check

BMW M54 Engine: Specs, Evolution, and Differences from the N52

The BMW M54 is the brand's last naturally aspirated inline-six with an aluminum block. Learn its specifications, its evolution from the M52TÜ to the N52, how it differs from the S54, its common problems, and maintenance tips.

BMW X6 E71 (2007–2014): The Complete Guide to Buying, Ownership, and Maintenance

A complete guide to the BMW X6 E71 (2007–2014): specs overview, common problems, maintenance tips, and a used-buying checklist. Learn how to extend its life and avoid costly repairs.

BMW 530d G30 Buyer’s Guide: Should You Buy One, Tips, and Common Problems

BMW X5 E70: Complete Guide to Engines, Problems, and Maintenance

A complete guide to the BMW X5 E70 (2006–2013): engine overview (N52, N54, N55, N62, N63, S63, M57N2), common problems, maintenance, and a buying checklist. Find out which engine is the most reliable and how to extend the SUV's service life.

BMW N55 vs B58: Comparing the TwinScroll Inline-Sixes

The N55 (2009–2016) and the B58 (from 2015) are both 3.0-liter TwinScroll inline-six turbo engines from BMW and share many design principles — but the B58 was optimized in almost every core detail. The clearest example: the water pump moves from the problematic Pierburg electric setup back to a mechanical belt drive.

BMW Fault Code Diagnosis: A Complete Owner’s Guide

A complete guide to BMW fault code diagnosis: how to read codes, the top 5 common errors, step-by-step repair, and the best diagnostic tools.