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

Car Overview Overview

BMW X7 G07 xDrive40i: Overview, Reliability, and Owner Experience

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Car Overview ⚡ Express

BMW 1 Series E87 With the N52 Engine: Complete Overview, Problems, and Maintenance

A complete overview of the BMW 1 Series E87 with the N52 engine: specs, common problems, maintenance tips, and a checklist for buying a used car.

Car Overview Overview

BMW 5 Series G30 530d: Overview, Owner Reviews, and Ownership Experience

Car Overview Overview

BMW 530d G30 (B57): Long-Term Ownership Experience, Reliability, and Running Costs

Maintenance ⚡ Express

The Right Oil for the BMW M54B30: Specs, Viscosity, and Change Intervals

Learn how to pick the right oil for a BMW M54B30: Longlife-98/01 specs, 5W-30, 5W-40, or 10W-40 viscosity, a roughly 5,000-mile change interval, and a step-by-step procedure. Avoid the usual trouble — stuck piston rings and worn lifters.

Car Overview Overview

BMW 530d G30: Overview, Driving Impressions, and Owner Opinions

Buying Guide Overview

BMW 5 Series G30 530d: What to Check Before Buying

Car Overview ⚡ Express

BMW 1 Series: The Complete Guide to Reliability, Common Problems, and Choosing the Best Engine

The complete guide to BMW 1 Series reliability: common problems with the N47 and B38 engines, how to choose the best motor, a buyer's checklist, and tips for inspecting a used car.

Engine Mechanical ⚡ Express

BMW M60 and M62 Engines: The Complete Guide to Buying, Owning, and Repairing

A complete guide to BMW's M60 and M62 V8 engines: specs, common problems, ownership tips, and a pre-purchase checklist. Here's how to keep BMW's V8 alive.

Car Overview ⚡ Express

BMW G30/G31 B47: The Complete Guide to Owning and Maintaining the Diesel Wagon

The complete guide to owning and maintaining the BMW G30/G31 B47: common problems, oil and filter service intervals, ZF 8HP automatic and xDrive maintenance, plus a checklist for used-car buyers.