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

Model:

All 3-er G20 3-er F30 5-er G30 5-er F10 5-er E60 X3 G01 X3 F25 X4 G02 X5 G05 X5 F15 7-er G11/G12

Car Overview ⚡ Express

The BMW F11 with the N55 Engine: A Complete Guide to Ownership, Problems, and Maintenance

A complete guide to the BMW F11 with the N55 engine: key specs, common problems (water pump, air suspension, brake pads), maintenance tips, and a used-buyer checklist—plus real-world fuel economy for the legendary wagon.

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BMW X6 E71 (2008–2014): Complete Overview, Problems, Maintenance, and Buying Tips

A complete overview of the BMW X6 E71 (2008–2014): engines, common problems, maintenance advice, and a checklist for buying used. Find out how to pick a reliable version.

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BMW 7 Series: A Complete Guide to Buying, Reliability, and Common Problems

A complete guide to buying a BMW 7 Series on the used market: common problems, engine reliability, an inspection checklist, and maintenance tips. Find out which generations and engines are worth choosing—and which to avoid.

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BMW E36: The Complete Guide to Buying, Owning, and Repairing

A complete guide to the BMW E36: buying, ownership, and repairs. Typical problems with the M50, M52, and M42 engines, suspension, body, and electrics. Maintenance tips and a buyer's checklist.

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BMW 640i G32 (B58): Full Overview, Problems, and Ownership Tips

A full overview of the BMW 640i G32 with the B58 engine: specs, common problems, maintenance advice, and a used-car buying checklist. Learn the model's pros and cons.

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Air Suspension, N63, and iDrive: The Complete Guide to BMW 7 Series Problems (E65, F01, G11, G70)

A complete guide to BMW 7 Series problems (E65, F01, G11, G70): air suspension, the N63 engine, electronics, and iDrive. Learn how to diagnose and fix the common failures to keep your car on the road longer.

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BMW F30 N20: 138,000-Mile Owner’s Guide to Problems and Repairs

A complete BMW F30 N20 owner's guide at 138,000 miles. Common problems, real running costs (~$13,000 over 4 years), maintenance advice, and a pre-purchase checklist.

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BMW F80 M3: The Complete Guide to Buying, Maintaining, and Common Problems

A complete guide to buying and maintaining the BMW F80 M3: S55 engine specifics, common problems (charge pipe, rod bearings, HPFP), running costs, and a used-car inspection checklist.

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BMW G11/G12 (2016–2022): The Complete Guide to Buying, Owning, and Repairing

A complete guide to buying, running, and repairing the BMW G11/G12 (2016–2022): engine breakdown, common problems, a buyer's checklist, and maintenance recommendations.

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BMW F10/F11 (2010–2017): The Complete Guide to Buying, Owning, and Repairing

The complete guide to the BMW F10/F11 (2010–2017): the N57, N20, N55, and N63 engines, the ZF 8HP transmission, common problems and their diagnostics, the maintenance schedule, and a used-car inspection checklist.