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Bmw Bmw E39 5 Series

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BMW E39 5 Series: A Comprehensive Buyer's Guide

The BMW E39 5 Series, produced from 1995 to 2004, is widely regarded as one of the best 5 Series generations ever made, and often cited as a benchmark in automotive engineering. Replacing the E34, it brought significant improvements in technology, chassis dynamics, and overall refinement. As a mid-size executive car, it offered a compelling blend of luxury, performance, and practicality, solidifying BMW's reputation for driver-focused vehicles.

Generations

  • E39 (1995-2003/2004): The E39 represents the entire generation. There isn't a facelift or pre-facelift denoted with different chassis codes. Instead, subtle refinements occurred throughout its production run. Key engine options included inline-six petrol engines (520i, 523i, 525i, 528i, 530i), V8 petrol engines (535i, 540i), and inline-six diesel engines (520d, 525d, 530d).
  • Facelift (2000-2003/2004): While still an E39, the facelift introduced notable changes. These include:
    • Revised headlights with "angel eyes" (corona rings)
    • Updated taillights with LED elements
    • Minor interior trim updates
    • Revised bumpers and side skirts (depending on model)
    • Updated DSC (Dynamic Stability Control) system
  • M5 (1998-2003): The high-performance variant, powered by a 4.9L S62 V8 engine. Distinctive styling cues, performance-tuned suspension, and upgraded braking system differentiate it from the standard E39 models.

Reliability & Common Issues

The E39 is generally considered a reliable car, especially for its age, but like all vehicles, it has its share of common problems. Addressing these issues proactively can help maintain its longevity and driving pleasure.

Engine Related Issues:

  • Cooling System: A notorious weak point. Components like the water pump (especially those with plastic impellers), thermostat housing, radiator, and expansion tank are prone to failure. Overheating can lead to serious engine damage. Replacing these components with upgraded, metal parts is highly recommended.
  • VANOS (Variable Valve Timing): VANOS problems are common, particularly on higher mileage models. Symptoms include rough idling, loss of power, and engine stalling. Repairing or replacing the VANOS unit can be costly.
  • Oil Leaks: Valve cover gaskets, oil filter housing gaskets, and oil pan gaskets are susceptible to leaking as the rubber degrades over time. Regular inspection and timely replacement are crucial.
  • Mass Airflow Sensor (MAF): A faulty MAF sensor can cause poor fuel economy, rough running, and a loss of power. Cleaning or replacing the sensor can resolve these issues.
  • Oxygen Sensors (O2 Sensors): Degraded O2 sensors affect fuel efficiency and can trigger the check engine light. Replacement is a relatively straightforward process.
  • CCV (Crankcase Ventilation) System: The CCV system can clog, especially in colder climates, leading to excessive oil consumption and potential engine damage. Regular inspection and cleaning or replacement are advised.

Chassis & Suspension Issues:

  • Suspension Components: Ball joints, control arms, tie rod ends, and bushings wear out over time, leading to sloppy handling and increased tire wear. Replacing these components restores the car's original driving dynamics.
  • Rear Subframe Bushings: These bushings are known to fail, causing a clunking noise from the rear of the car. Replacing them requires specialized tools.
  • Power Steering System: Power steering hoses can leak, and the power steering pump can fail. Inspecting the system regularly and addressing leaks promptly can prevent further damage.
  • Brake System: Brake rotors can warp, and brake calipers can seize. Regular brake maintenance, including rotor resurfacing or replacement and caliper inspection, is essential for safe braking performance. Rear brake lines are known to corrode.

Electrical & Electronics Issues:

  • Pixel Loss in Instrument Cluster: A common issue, especially on earlier models. Replacing the ribbon cable or the entire instrument cluster is required to fix it.
  • Central Locking System: Door lock actuators can fail, preventing the doors from locking or unlocking properly.
  • Window Regulators: Window regulators are prone to failure, causing the windows to get stuck or fall into the door.
  • Battery Drain: Electrical gremlins can cause excessive battery drain, especially if aftermarket accessories have been installed improperly.

Driving Experience

The E39 offers a superb driving experience, characterized by its balanced handling, comfortable ride, and responsive engines. It strikes an excellent balance between sporty performance and luxurious comfort.

Pros:

  • Precise Handling: The E39's chassis provides excellent feedback and control, making it a joy to drive on winding roads.
  • Comfortable Ride: The suspension effectively absorbs bumps and road imperfections, providing a smooth and comfortable ride, even on long journeys.
  • Responsive Engines: The inline-six and V8 engines deliver ample power and torque, providing strong acceleration and effortless cruising.
  • Well-Built Interior: The interior is well-designed and constructed with high-quality materials, providing a comfortable and refined environment.
  • Timeless Design: The E39's exterior design has aged gracefully, and it still looks stylish and modern today.

Cons:

  • Maintenance Costs: Repairing and maintaining an E39 can be expensive, especially if you rely on dealer service.
  • Potential for Problems: As an older car, the E39 is prone to developing various mechanical and electrical problems.
  • Fuel Economy: Fuel economy can be poor, especially with the V8 engines.
  • Finding a Well-Maintained Example: It can be challenging to find an E39 that has been properly maintained and cared for. Many examples have been neglected.

Buying Advice

If you're considering purchasing an E39, here's some advice to help you make an informed decision:

Years to Look For:

  • 2001-2003 Models: These models benefit from the facelift updates, including the improved headlights and taillights, and generally have fewer issues than earlier models. The M54 engine (525i and 530i) are generally more reliable than the M52TU found in pre-facelift 528i models.
  • 530i: The 530i offers an excellent balance of performance and fuel economy. The M54 engine is renowned for its smooth power delivery and reliability.
  • 540i (Manual Transmission): If you prioritize performance and driving engagement, a 540i with a manual transmission is a desirable option. However, be prepared for higher running costs.

Years to Potentially Avoid (or be extra careful with):

  • 1996-1997 Models: These early models may have more accumulated wear and tear and may lack some of the later refinements. Early models also have single VANOS, which isn't as desirable as dual VANOS.
  • Models with Poor Maintenance History: Avoid examples that have been neglected or have a history of deferred maintenance. A thorough pre-purchase inspection is essential.
  • High-Mileage Examples: While mileage isn't everything, high-mileage examples are more likely to require expensive repairs. Consider the overall condition and maintenance history.

What to Look For During Inspection:

  • Rust: Check for rust, especially around the wheel arches, door bottoms, and trunk lid.
  • Cooling System Condition: Inspect the cooling system components for leaks and cracks. Have the system pressure tested.
  • Suspension Condition: Listen for clunking noises during a test drive, and inspect the suspension components for wear and tear.
  • Electrical Issues: Check all electrical functions, including the windows, locks, lights, and climate control.
  • Service Records: Review the service records carefully to assess the car's maintenance history. Look for evidence of regular maintenance and repairs.
  • Pre-Purchase Inspection: Have a qualified mechanic perform a thorough pre-purchase inspection to identify any potential problems.
  • VANOS rattle: Listen for a tell-tale VANOS rattle at idle. This is a common issue and expensive to repair.

The E39 5 Series remains a compelling choice for enthusiasts and discerning drivers seeking a blend of luxury, performance, and timeless design. By being aware of its potential issues and carefully inspecting any prospective purchase, you can enjoy the exceptional driving experience that the E39 offers for years to come.

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