Known Problems & Diseases

Used BMW Pre-Purchase Inspection Checklist Buying a used BMW without a proper inspection is gambling. This checklist covers everything a PPI should include. Before You See the…

Preparing Your BMW for Winter Cold weather is hard on BMWs. Plastic cooling components get brittle, batteries lose capacity, and rubber seals shrink. Here's how to winterize…

High Mileage BMW — What to Expect BMWs can absolutely last 200,000+ km with proper care. But certain things will need attention at specific milestones. Here's the roadmap…

BMW F10 5 Series — Common Issues Overview The F10 5 Series (2010-2017) is more reliable than the E60 but still has its quirks. N20 (528i) Timing chain stretch — the big one…

BMW Timing Chain Problems — Which Engines Are Affected Overview Timing chain failure is one of the most expensive and potentially catastrophic problems on BMW engines. Not all…

BMW E89 Z4 — Roadster Problems Overview The E89 Z4 (2009-2016) features a retractable hardtop and was available with N52, N54, and N55 engines. Engine Issues N52 (sDrive23i…

BMW F15 X5 — Common Issues Overview The F15 X5 (2013-2018) improved significantly over the E70 in reliability, but still has some common issues. Engine N55 (xDrive35i) Valve…

BMW E70 X5 — Every Known Problem Overview The E70 X5 (2006-2013) is a capable luxury SUV but has some expensive failure points, especially on V8 models. Engine-Specific N55…

BMW Oil Leaks — The Most Common Leak Points Why BMWs Leak Oil BMW engines use many gaskets and seals that are subjected to high temperatures and thermal cycling. Over time…

BMW G30 5 Series — Early Issues Overview The G30 5 Series (2016-2023) is one of BMW's most refined sedans. Generally reliable, with fewer issues than the F10. Engine B48 (520i…

BMW E84 X1 — Common Problems Overview The E84 X1 (2009-2015) is BMW's first compact SAV, based on the E90 3 Series platform with RWD/xDrive. Engine Issues N20 (xDrive20i…

BMW G01 X3 / G02 X4 — Reliability Report Overview The G01 X3 (2017-2024) and G02 X4 (2018-present) are among BMW's best-selling models. Generally very reliable. Engine B48…

BMW E71 X6 — Common Problems Overview The E71 X6 (2008-2014) created the "Sports Activity Coupe" segment. It shares most components with the E70 X5. Engine N55 (xDrive35i)…

BMW E46 M3 — Complete Ownership Guide Overview The E46 M3 (2000-2006) with the S54 engine is one of the most desirable BMWs ever made. Prices have risen significantly — proper…

BMW G20 3 Series — Early Issues Overview The G20 (2018-present) is BMW's latest 3 Series. Being relatively new, it has fewer documented issues than older generations, but some…

Are BMWs Reliable? An Honest Answer This is the most asked question about BMW ownership. The answer isn't a simple yes or no. The Short Answer BMWs are reliable if you maintain…