BMW M5 E39 (S62B50): A Quick Breakdown of the Legendary Sedan

At a Glance

The BMW M5 E39 was the last M5 with a naturally aspirated V8 and a manual gearbox. Built from 1998 through 2003, it carried the S62B50 engine producing 400 hp and sprinted from 0–60 mph in 5.3 seconds. Today it’s a collector’s car with rising values—but buying one demands a careful look at the VANOS, the brakes, and the suspension.

The Problem

You slide into the legendary sedan, hit the pedal—and instead of pure driving joy you get brake vibration, oil leaks, and throttle actuator faults. The M5 E39 is a car with character, but its age shows. The buyer’s core question: how do you tell a well-kept example from a money pit that will demand serious investment?

Symptoms

• Steering wheel vibration under braking at 62–75 mph
• High oil consumption—more than 1 liter per 1,200 miles
• Throttle actuator faults
• Missing pixels on the onboard computer display and in the mirror
• Vibration and degraded handling over rough pavement
• Unusual noise from the VANOS on a cold start

Causes

Most M5 E39 problems trace back to natural wear in components engineered for high loads. The VANOS system suffers from poor-quality seals in its solenoid valves—over time they lose elasticity, oil begins to bleed through internally, and valve timing drifts.

The 13.6-inch Brembo front rotors are prone to warping under hard use—overheating distorts them, and you feel it as vibration through the wheel. Worn bushings in the suspension control arms upset wheel geometry, and handling suffers.

Early cars (1998–2001) carry design traits that drive oil consumption up—around 1 liter per 1,200 miles. The culprits are the oil control rings and the crankcase ventilation system.

The Fix

A pre-purchase inspection is mandatory. Check the VANOS condition: ask the seller whether it has been rebuilt. If not, budget for a repair kit—it costs noticeably less than replacing the entire unit. New seals extend the unit’s service life by tens of thousands of miles.

Brake system. On the test drive, brake from 62–75 mph—steering wheel vibration means warped rotors. Rear rotors measure 12.9 inches; both axles are Brembo.

Suspension. Inspect the control arm bushings—play and vibration over bumps mean they’re due for replacement. It’s an inexpensive repair that brings back the legendary handling. For even sharper behavior, sport shock absorbers (struts) are recommended—they cope better with the car’s 1,795 kg mass.

Service history. Demand the service book and the receipts. Avoid cars with more than 4 owners. Regular oil changes and quality consumables are what keep this engine running past 186,000 miles.

Prevention and Checklist

• Check the VANOS condition and its repair history
• Assess brake rotor wear with a test drive
• Inspect the control arm bushings for play
• Check oil consumption—up to 1 liter per 1,200 miles is normal
• Make sure the service book and receipts are present
• Favor post-facelift cars from 2001 onward

The Bottom Line

The BMW M5 E39 is the last naturally aspirated M5 with a manual—a car that won’t be repeated. Bought right, it remains a dependable everyday sedan and a collector’s piece whose value keeps climbing. The keys: a thorough inspection before purchase and a commitment to regular maintenance. If you’re up for that, the legend won’t disappoint.

📖 Full deep dive: BMW M5 E39: Deep Technical Breakdown—S62B50 construction, VANOS subtypes, control module specifications, and engineering details.

Technical Data

Torque specs (lb-ft): 369 lb-ft, 369.6 lb-ft