Mercedes-Benz W110 "Fintail" - A Comprehensive Guide
The Mercedes-Benz W110, affectionately nicknamed the "Fintail" (German: Heckflosse) due to its distinctive tailfins, represents a pivotal moment in Mercedes-Benz history. Produced from 1961 to 1968, it was the first series of Mercedes-Benz cars to feature crumple zones, a groundbreaking safety innovation that significantly improved occupant protection in collisions. The W110 filled the gap between the larger, more luxurious S-Class models and the smaller, less expensive cars of the time, effectively serving as an executive car or a mid-size luxury vehicle by today's standards.
Generations
First Generation (1961-1965)
- Models: 190c, 190Dc
- Key Changes: Introduction of the "Fintail" design, embodying the era's fascination with American automotive styling. These models featured a smaller engine and were more economical than their successors. Introduction of front and rear crumple zones – a major safety advancement.
- Engine Options: 1.9L M121 four-cylinder petrol (190c), 2.0L OM621 four-cylinder diesel (190Dc)
Second Generation (1965-1968)
- Models: 200, 200D, 230
- Key Changes: Introduced a larger, more powerful 2.3L inline-six engine for the 230 model. Interior received subtle updates, including revised seats and trim. Increased focus on performance and luxury.
- Engine Options: 2.0L M121 four-cylinder petrol (200), 2.0L OM621 four-cylinder diesel (200D), 2.3L M180 inline-six petrol (230)
Reliability & Common Issues
The W110 is generally regarded as a robust and reliable vehicle, especially considering its age. However, potential buyers should be aware of the following common issues:
Rust
As with any car of this era, rust is a major concern. Pay close attention to the following areas:
- Floor pans: Check for rust-through, especially in areas exposed to water and salt.
- Wheel arches: Examine both inner and outer wheel arches for signs of corrosion.
- Door sills: A common rust spot, often hidden beneath trim.
- Trunk floor: Check for water ingress and subsequent rust damage.
- Suspension mounting points: Critical areas that need to be structurally sound.
Engine
The engines are generally durable, but maintenance is key.
- Petrol Engines (M121, M180): Watch out for worn carburetors (difficult to source parts), valve guide wear (leading to oil consumption), and timing chain stretch. Regular oil changes are crucial.
- Diesel Engines (OM621): These are known for their longevity, but can suffer from injector issues, worn injection pumps (leading to poor starting and performance), and leaks. Cold starting problems are often indicative of worn glow plugs or low compression.
Transmission
Both manual and automatic transmissions were available.
- Manual Transmissions: Generally reliable, but can suffer from worn synchromesh, especially in second gear.
- Automatic Transmissions: These are generally robust but require regular fluid changes. Slipping or harsh shifting indicates potential problems. Rebuilds can be costly.
Suspension & Brakes
The suspension is relatively simple, but components can wear over time.
- Suspension: Check for worn bushings, ball joints, and shock absorbers. Listen for clunking noises over bumps. Sagging suspension indicates worn springs.
- Brakes: Ensure the brakes are functioning correctly. Check the condition of brake lines, calipers, and wheel cylinders. Brake fade can be an issue on long descents, especially with older brake components.
Electrical System
The electrical systems can be problematic due to age and corrosion.
- Wiring: Check for cracked or brittle wiring, especially in the engine bay and under the dashboard.
- Lights: Ensure all lights are functioning correctly. Dim headlights can be a sign of poor grounding.
- Charging System: Test the alternator and battery to ensure they are functioning properly.
Driving Experience
Driving a W110 is a unique experience that connects you to a different era of motoring. It's not about blistering performance or razor-sharp handling, but about a sense of solidness, comfort, and timeless style.
Pros:
- Comfortable Ride: The suspension provides a surprisingly smooth ride, even on less-than-perfect roads.
- Solid Build Quality: The W110 feels exceptionally well-built, with a sense of solidity that is rare in modern cars.
- Classic Styling: The "Fintail" design is undeniably iconic and attracts attention wherever it goes.
- Relatively Simple Mechanics: Easier to work on than more modern cars, making it a good choice for DIY enthusiasts.
Cons:
- Performance: The engines, particularly the four-cylinder models, can feel underpowered by modern standards.
- Handling: The handling is soft and forgiving, but not particularly sporty.
- Fuel Economy: Fuel consumption can be high, especially with the larger engines.
- Availability of Parts: Some parts can be difficult to source and expensive.
Buying Advice
Buying a classic car like the W110 requires careful consideration. Here's some advice to help you make an informed decision:
Years to Look For:
- Later models (1965-1968): These generally benefit from improvements and increased power, particularly the 230 model with its inline-six engine.
Years to Avoid (Potentially):
Key Considerations:
- Condition is Paramount: Prioritize a car with minimal rust and a well-maintained engine and transmission.
- Professional Inspection: Have a qualified mechanic specializing in classic Mercedes-Benz vehicles inspect the car before you buy it.
- Documentation: Look for a car with a good service history and original documentation.
- Budget: Factor in not only the purchase price but also the cost of ongoing maintenance, repairs, and potential restoration work.
- Test Drive: Take the car for a thorough test drive to assess its performance, handling, and overall condition. Pay attention to any unusual noises or vibrations.
The Mercedes-Benz W110 "Fintail" is a rewarding classic car that offers a unique blend of style, comfort, and engineering. With careful research and a thorough inspection, you can find a well-preserved example that will provide years of enjoyment.
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