BMW 600: A Comprehensive Guide
History and Overview
The BMW 600, often affectionately nicknamed the "Big Isetta," represents a significant chapter in BMW's post-war history. Introduced in 1957 and produced until 1959, it was BMW's attempt to offer a more practical and spacious vehicle compared to the immensely popular, but undeniably diminutive, Isetta 250 and 300 bubble cars. While still considered a microcar, the 600 offered seating for four and a conventional side door, making it a stepping stone towards BMW's later, more mainstream offerings. It served as a crucial bridge during a period when BMW was struggling financially and needed to broaden its appeal to a wider audience. Think of it as an evolutionary link between the Isetta and the later, more commercially successful, BMW 700.
The 600 essentially took the Isetta's single-cylinder engine and basic design, stretching it to accommodate a longer wheelbase, adding a rear bench seat, and replacing the front-opening door with a conventional door on the right side. This provided easier access and a more conventional driving experience, albeit one still firmly rooted in the quirky world of microcars.
Class of Car: Microcar
Generations and Key Changes
The BMW 600 had essentially one generation, although some minor variations occurred during its short production run.
- 1957-1959: BMW 600
- Engine: 582cc two-cylinder, air-cooled boxer engine derived from BMW motorcycle units.
- Key Features:
- Single right-side door for the driver and front passenger.
- Conventional rear bench seat accessible via a small rear door.
- Stretched wheelbase compared to the Isetta.
- Independent suspension at all four wheels.
Reliability and Common Issues
The BMW 600, while mechanically simple, is still an old car. Therefore, potential buyers should be aware of some common issues:
Engine
- Overheating: The air-cooled engine is prone to overheating, especially in hot climates or during prolonged uphill driving. Maintaining proper airflow to the engine is critical. Inspect the engine's cooling fins for damage or debris.
- Carburetor Issues: The carburetor can be sensitive to dirt and debris, leading to poor running and difficulty starting. Regular cleaning and adjustment are essential.
- Oil Leaks: As with many older engines, oil leaks are common. Check for leaks around the cylinder heads, valve covers, and oil pan.
- Low Power: The 582cc engine is inherently underpowered. Expect slow acceleration and limited top speed. Ensure the engine is running at its peak performance with regular maintenance.
Transmission
- Gearbox Wear: The gearbox can suffer from wear, particularly in the synchromesh. Listen for grinding noises during gear changes.
- Clutch Issues: The clutch can be prone to slippage or grabbing, especially if the car has been stored for a long period. Check the clutch cable for proper adjustment.
Suspension and Brakes
- Worn Suspension Components: The independent suspension, while advanced for its time, can suffer from worn bushings, ball joints, and shock absorbers. This can lead to poor handling and a bumpy ride.
- Brake System Issues: The drum brakes are relatively simple but can be prone to fading and uneven braking. Ensure the brake linings are in good condition and the brake cylinders are not leaking.
Electrical System
- Wiring Problems: The electrical system is basic but can suffer from corroded wiring, faulty connectors, and a weak generator. A thorough inspection of the wiring is essential.
- Generator Output: The generator may struggle to keep the battery charged, especially if the car is equipped with modern accessories.
Body and Chassis
- Rust: The BMW 600 is prone to rust, particularly in areas such as the floor pans, rocker panels, and around the wheel arches. A thorough inspection for rust is essential.
- Panel Fit: Panel fit can be inconsistent, as these cars were built to a budget. Don't expect perfect panel gaps.
Overall Reliability: While the BMW 600 is mechanically simple, its age means that reliability can be a concern. Regular maintenance and careful attention to potential issues are crucial for keeping it on the road. Access to spare parts can be challenging, but a dedicated community of owners and specialists exists.
Driving Experience
Driving a BMW 600 is an experience unlike any other. It's a journey back in time, offering a glimpse into a different era of motoring.
Pros:
- Unique and Quirky: The 600 is a head-turner wherever it goes. Its unusual design and historical significance make it a true conversation piece.
- Simple Mechanics: The car's mechanical simplicity makes it relatively easy to work on, provided you have the necessary skills and knowledge.
- Fuel Economy: The 582cc engine offers excellent fuel economy, making it an affordable classic to run.
- Community Support: A strong community of BMW 600 owners and enthusiasts exists, providing valuable support and resources.
Cons:
- Slow Performance: The engine is underpowered, and acceleration is leisurely. This is not a car for modern traffic conditions.
- Limited Safety: The 600 lacks modern safety features such as seatbelts and airbags.
- Ride Quality: The ride can be bumpy and uncomfortable, especially on rough roads.
- Parts Availability: Sourcing spare parts can be challenging and expensive.
- Requires Mechanical Sympathy: It requires constant maintenance and isn't suitable as a daily driver without significant upgrades and restoration.
Overall Impression: The BMW 600 offers a unique and rewarding driving experience for those who appreciate classic cars and are willing to accept its limitations. It's a car best suited for leisurely drives on quiet roads, rather than commuting in heavy traffic.
Buying Advice
Purchasing a BMW 600 requires careful consideration and thorough inspection. Here's some advice for potential buyers:
What to Look For:
- Rust-Free Example: Prioritize finding a car with minimal rust. Rust repair can be costly and time-consuming. Pay close attention to the floor pans, rocker panels, and wheel arches.
- Originality: Original examples are more desirable and valuable. Check for original paint, interior trim, and engine components.
- Complete History: A well-documented history of maintenance and repairs is a valuable asset.
- Running Condition: Ideally, find a car that is in good running condition. This will save you time and money on initial repairs.
What to Avoid:
- Badly Rusted Cars: Avoid cars with extensive rust, as these can be very difficult and expensive to restore.
- Modified Examples: Heavily modified cars may be less desirable to collectors.
- Cars with Missing Parts: Sourcing missing parts can be challenging and expensive.
- Cars with Major Mechanical Issues: Unless you are a skilled mechanic, avoid cars with major engine or transmission problems.
Years to Consider:
- Given the short production run (1957-1959) year is less of a factor than condition and originality.
Pre-Purchase Inspection:
- Hire a Specialist: If possible, hire a BMW 600 specialist to perform a pre-purchase inspection. They will be able to identify potential issues that you may miss.
- Check the Engine: Listen for unusual noises, check for oil leaks, and verify that the engine runs smoothly.
- Inspect the Body: Carefully examine the body for rust, damage, and evidence of repairs.
- Test Drive: Take the car for a test drive to assess its handling, braking, and overall performance.
Conclusion: The BMW 600 is a unique and charming classic car that offers a rewarding ownership experience. By following this buying advice, you can increase your chances of finding a well-maintained example that will provide years of enjoyment. Remember to factor in potential restoration costs and ongoing maintenance when making your decision.