The 1990 BMW M5 is a high-performance four-door sports sedan from the E34 generation, blending executive comfort with track-inspired engineering. Powered by a hand-built inline-six and tuned by BMW Motorsport, it sits at the top of the 5 Series lineup as the flagship enthusiast choice of its era. It’s ideal for drivers who want classic BMW steering feel, strong naturally aspirated power, and a usable back seat without giving up a true driver’s car experience. In today’s market, it’s a sought-after modern classic that rewards diligent maintenance and careful buying.

- 3.6L DOHC inline-six (S38B36): Approximately 311 hp and 266 lb-ft, known for its high-rev character and motorsport roots. - 5-speed manual transmission: A driver-focused setup with a direct, mechanical feel and strong gearing for spirited driving. - Rear-wheel drive with a limited-slip differential: Helps put power down and delivers the balanced handling the M5 is known for. - Upgraded M-specific chassis tuning: Sport suspension, larger brakes than standard 5 Series models, and sharper road manners while remaining comfortable enough for daily use. - Classic E34 build quality and ergonomics: Solid structure, excellent visibility, and an interior layout that’s simple, functional, and built for long-distance driving.

Owners searching for 1990 BMW M5 problems, 1990 BMW M5 reliability, and 1990 BMW M5 common issues will find that these cars can be dependable when maintained, but neglect gets expensive quickly. Here are common trouble spots to know: - Timing chain system wear (guides, tensioner, rails): On higher-mileage cars (often 100,000–150,000+ miles), chain guides and tensioner components can wear, leading to rattling on startup or persistent noise. If ignored, timing-related failures can become catastrophic. - Cooling system weak points: Radiators, water pumps, thermostats, and plastic/aging hoses can fail with age. Overheating is a major risk on the S38; many owners proactively refresh the cooling system around 80,000–120,000 miles or based on age and service history. - Oil leaks and gasket seepage: Valve cover gaskets, timing cover areas, and oil pan gaskets can leak, especially on older cars with heat-cycled seals. Leaks aren’t always immediately dangerous, but low oil level on an S38 is. - Suspension and driveline wear: Front control arm bushings, thrust arms, shocks/struts, guibo (flex disc), and center support bearing can wear, causing clunks, vibration under load, wandering at speed, or uneven tire wear—commonly showing up around 80,000–140,000 miles depending on use.