Mercedes Benz SL 320 (1989-02)

The Mercedes SL320 (1989-2002) is a classic car, but like any vehicle, it had its share of common issues. Here are some of the most frequently reported problems:

1. **Engine Issues**:
- **Misfires**: Often caused by faulty ignition coils or wiring harnesses.
- **Oil Leaks**: Commonly from the valve cover gasket.
- **Timing Chain Failure**: Can lead to significant engine damage.

2. **Electrical Problems**:
- **Battery Drainage**: Due to faulty electrical components.
- **Malfunctioning Instrument Cluster**: Issues with the dashboard display.

3. **Transmission Problems**:
- **Rough Shifting**: Often due to worn transmission components.
- **Transmission Slippage**: Can be caused by low transmission fluid or worn clutches².

4. **Suspension Issues**:
- **Suspension Failure**: Particularly in later models.
- **Rust Issues**: Common in older models.

5. **Other Issues**:
- **Air Conditioning Problems**: Issues with the air conditioning system blowing hot and cold air.
- **Convertible Top Problems**: Issues with the power convertible top mechanism.

Regular maintenance and prompt attention to these issues can help keep the SL320 running smoothly.
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Generations
The Mercedes SL320 from 1989 to 2002 is part of the **R129 generation** of the SL-Class. This generation can be roughly divided into three segments:

1. **Early Models (1990-1995)**: These were the initial versions of the R129.
2. **Mid-Year Models (1996-1998)**: These models saw some updates and improvements.
3. **Later Models (1999-2002)**: These were the final versions of the R129 before the next generation was introduced.
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Trim Levels
The Mercedes SL320 (1989-2002) was available in several trim levels, each offering different features and equipment. Here are some of the main trim levels:

1. **Standard Trim**: This was the base model, offering essential features and equipment¹.
2. **Limited Edition**: This trim included additional features and optional equipment for a more luxurious experience⁴.
3. **Sport Trim**: Focused on performance enhancements and sportier aesthetics².

Each trim level had its own set of features and options, allowing buyers to choose the one that best suited their preferences and needs.
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The Mercedes SL320 (1989-2002) was equipped with a few different engines over its production run:

1. **3.2-litre Inline-6 (M104)**: This engine was used in the earlier models and produced around 231 bhp⁴.
2. **3.2-litre V6 (M112)**: This engine was introduced in the later models and also produced around 221 bhp³.

These engines provided a good balance of performance and reliability, making the SL320 a popular choice among classic car enthusiasts.
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Performance
The Mercedes SL320 (1989-2002) offered a respectable performance for its time. Here are some key performance figures:

- **Power**: The SL320 was equipped with a 3.2-litre inline-6 engine producing around 231 bhp¹.
- **Acceleration**: It could accelerate from 0 to 60 mph in approximately 8.1 seconds¹.
- **Top Speed**: The top speed was around 147 mph (238 km/h)³.
- **Torque**: The engine produced about 315 Nm (232 lb-ft) of torque³.
- **Fuel Economy**: The SL320 had an average fuel consumption of around 21 MPG (11 L/100 km)³.

These figures made the SL320 a well-rounded performer, combining luxury and power in a classic package.
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Spares
Here are some places in the UK and Ireland where you can find spare parts for your Mercedes SL320 (1989-2002):

1. **[SLSHOP](1)**: Europe's leading Mercedes-Benz SL specialist, offering a wide range of parts and accessories to service, restore, and enhance your classic Mercedes-Benz SL.
2. **[Auto Parts Pro](2)**: An online store offering a comprehensive catalogue of Mercedes-Benz SL parts at competitive prices.
3. **[EU Spares](3)**: Another online store with a variety of original parts for the Mercedes-Benz SL.

These stores should have the parts you need to keep your SL320 running smoothly. If you have any more questions or need further assistance, feel free to ask!
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Specialists
Here are some garages in Northern Ireland where you can service your Mercedes SL320 (1989-2002):

1. **[Mercedes-Benz of Belfast](2)**: Located at 6 Boucher Crescent, Belfast BT12 6HU. They offer a wide range of services and have one of the largest official servicing and workshop facilities in Northern Ireland. You can contact them at 028 9068 9000.

2. **[Creevy Autos](4)**: Situated at 210 Ballygowan Road, Belfast BT5 7UB. They specialize in Mercedes-Benz sales, service, and repairs. You can reach them at 028 9044 8362.

3. **[MBNI - Mercedes-Benz](3)**: Located at 47-49 Mallusk Rd, Newtownabbey BT36 4PJ. They are the only official Mercedes-Benz commercial dealer in the region. You can contact them at 028 9034 2411.

These garages should be able to provide the necessary services and repairs for your SL320.
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Racing
The Mercedes SL320 itself was not specifically designed for racing and did not have a notable racing history. However, the SL-Class lineage, particularly the earlier models like the 300 SL, had a rich racing heritage. The 300 SL was highly successful in events such as the Targa Florio, Mille Miglia, and Le Mans 24 Hours.

The SL320, being more of a luxury grand tourer, was primarily focused on providing a comfortable and stylish driving experience rather than competing on the racetrack.