Built. Tested. Documented.

How we label our work: Garage Tested = used in our own garage · Research-Based = specs and owner feedback reviewed · Community-Vetted = owner consensus. How we make money →

Garage Tested is a hands-on automotive blog built for real enthusiasts. From DIY performance upgrades and step-by-step installs to in-depth tool reviews and garage-tested gear, every project comes from real-world experience. Whether you’re improving your daily driver, building a track car, or looking for the best tools for your garage, Garage Tested delivers reliable guides, honest testing, and practical insights you can use today.

Find the right parts for your BMW — tested in our garage, documented for yours.

MY GARAGE — Select your chassis:
E90 3-Series · F30 3-Series · G20 3-Series · F10 5-Series · G30 5-Series · X3 / X5

What are you fixing? · First mods · Maintenance

✓ Fitment-checked · ✓ Real install tested (on our M340i, 535i & X5) · ✓ Price-checked weekly · ✓ Free to use

Featured Build: BMW M340i (G20)
Our G20 M340i project car — every mod and maintenance job tested in my garage and fully documented.
Follow the M340i Build →
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Pick your chassis. “Tested in my garage” means we wrenched on it ourselves; everything else is researched and community-vetted.
E90 3-Series (2006–2012) · F30 3-Series (2012–2019) · G20 3-Series (2019–present, tested in my garage)
F10 5-Series (2010–2017, tested in my garage) · G30 5-Series (2017–2023)
X3 / X5 (X5 tested in my garage)
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From the Garage Tested Blog

BMW N55 Long Crank Fix: Symptoms, Diagnosis, and Repair Pathway

Diagnose BMW N55 long crank: symptoms, fault codes, HPFP and injector checks, and the repair path — a step-by-step DIY guide.
BMW Cooling System: How to Inspect Radiator Hose Efficiently

How to inspect your BMW's radiator hoses: what to look, squeeze, and check for before a hose strands you.
BMW Cooling System Pressure Test Procedure for Maintenance and Troubleshooting

Pressure-test your BMW cooling system the right way: tools, procedure, and how to read the results.
BMW Cooling System: Bleeding Air After Refill – A Comprehensive DIY

How to bleed air from your BMW cooling system after a refill — the full DIY procedure.
Dashcam Hardwire Fuse Tap Install for BMW Owners: A Step-by-Step Guide

Hardwire a dashcam in your BMW with a fuse tap: 2-wire vs 3-wire kits, install steps, and parking-mode wiring.
Best Dashcam Parking Mode Battery Safe for BMW Owners (Comparison)

Compare parking-mode dashcam batteries for BMW owners: VIOFO, BlackVue, Thinkware, and REDTIGER compared on specs and owner feedback.