MERCEDES-BENZ SLK Buying Guide & Reliability (1997-2016)

The MERCEDES-BENZ SLK is a compact luxury roadster that was produced from 1997 to 2016, showcasing a blend of performance and style. With a total of 828 registration plates recorded, the SLK has established itself as a popular choice among enthusiasts and casual drivers alike.

Last updated September 08, 2025 1998 words Based on real UK vehicle data

MERCEDES-BENZ SLK Overview

The MERCEDES-BENZ SLK is a compact luxury roadster that was produced from 1997 to 2016, showcasing a blend of performance and style. With a total of 828 registration plates recorded, the SLK has established itself as a popular choice among enthusiasts and casual drivers alike.

Throughout its production run, the SLK underwent several updates, with model years ranging from 1997 to 2016. The vehicle has an impressive MOT pass rate of 81.7%, indicating a generally reliable performance in terms of roadworthiness.

Common failures reported during MOT tests include issues related to brakes (138 failures), tyres (106 failures), and lighting (101 failures). Additionally, suspension problems were noted in 100 cases, while other categories accounted for 202 failures. These statistics highlight areas where potential buyers should exercise caution.

In terms of fuel type distribution, the SLK predominantly features petrol engines, with 658 units compared to 170 diesel variants. This preference for petrol aligns with the vehicle's sporty image and performance capabilities.

Colour preferences among SLK owners show a strong inclination towards silver, with 356 units recorded in this shade. Other popular colours include black (192), blue (80), white (76), and red (65), reflecting a diverse aesthetic appeal.

The average annual mileage for the SLK stands at 3,110 miles, suggesting that many owners use the vehicle for leisure rather than daily commuting. Of the 828 registered units, 607 are currently taxed, while 116 are SORN (Statutory Off Road Notification) and 105 are untaxed.

Data accuracy is subject to change, and the statistics provided are based on the latest available information. For the most current details, prospective buyers should consult official sources.

Reliability and MOT Performance

The Mercedes-Benz SLK, produced between 1997 and 2016, has a total of 828 registered vehicles in the UK. This model boasts a respectable MOT pass rate of 81.7%, indicating a generally reliable performance during annual inspections.

In terms of common failures, the SLK has shown some recurring issues. The most frequent category of failures falls under 'Other', accounting for 202 instances. Additionally, brake-related failures are notable, with 138 occurrences, followed by tyre issues at 106 and lighting problems at 101. Suspension failures also contribute to the overall statistics, with 100 reported cases.

When examining the fuel type distribution, petrol variants dominate the market, comprising 658 of the registered vehicles, while diesel models account for 170. This preference for petrol may reflect the driving characteristics and performance expectations associated with the SLK.

Colour preferences among SLK owners reveal a strong inclination towards silver, with 356 vehicles in this shade. Black follows with 192, while blue, white, and red account for 80, 76, and 65 vehicles, respectively. This variety in colour options allows potential buyers to find a model that suits their aesthetic preferences.

Annual mileage for the SLK averages at 3,110 miles, suggesting that many owners use this vehicle for leisure rather than as a daily driver. The distribution of vehicles by year shows a significant number from 2005 (100 vehicles) and a steady decline in earlier models, with only 7 registered from 1997.

It is important to note that the data presented here is based on available statistics and may not reflect the current state of all vehicles. For the most accurate and up-to-date information, prospective buyers should conduct thorough research.

What to Check When Buying Used

When considering a used Mercedes-Benz SLK, there are several key factors to evaluate to ensure you make a sound investment. With a total of 828 registered vehicles in the UK, it's essential to conduct thorough checks on the specific model you are interested in.

First, review the vehicle's MOT history. The SLK has an impressive MOT pass rate of 81.7%, but common failures should be noted. Issues related to brakes (138 failures), tyres (106 failures), and lighting (101 failures) are prevalent. Ensure that these components are in good condition, as they are critical for safety and performance.

Next, consider the vehicle's mileage. The average annual mileage for the SLK is approximately 3,110 miles, which is relatively low. A vehicle with significantly higher mileage may have more wear and tear, so it's wise to check the odometer reading against the service history.

Additionally, pay attention to the vehicle's tax status. Out of the 828 registered SLKs, 607 are currently taxed, while 116 are SORN (Statutory Off Road Notification) and 105 are untaxed. A taxed vehicle is generally a better option, as it indicates that the owner has maintained the vehicle's legal requirements.

Colour can also affect resale value; the most common colours for the SLK are silver (356), black (192), and blue (80). If you have a preference, this may influence your choice.

Finally, consider the model year. The SLK was produced from 1997 to 2016, with varying features and specifications across the years. Models from 2015 and 2016 are less common, with only 19 and 53 registered respectively, so availability may be limited.

Always verify the data and conduct a professional inspection before finalising your purchase.

Running Costs and Specifications

The Mercedes-Benz SLK, produced from 1997 to 2016, has a total of 828 registered vehicles in the UK. This model is known for its blend of performance and luxury, but understanding its running costs is essential for potential buyers.

In terms of fuel type distribution, the majority of SLK models are petrol-powered, with 658 units compared to 170 diesel variants. This can influence running costs significantly, as petrol generally has different pricing and efficiency metrics compared to diesel.

The average annual mileage for SLK owners is approximately 3,110 miles, which can help in estimating fuel expenses and overall running costs. Additionally, the vehicle has a respectable MOT pass rate of 81.7%, indicating that most owners maintain their vehicles in good condition.

However, common failures should be noted. The most frequent issues reported include brakes (138 failures), tyres (106 failures), and lighting (101 failures). Other categories, such as suspension and miscellaneous issues, also contribute to the overall maintenance considerations.

When it comes to taxation, 607 of the registered SLK vehicles are currently taxed, while 116 are declared SORN (Statutory Off Road Notification) and 105 are untaxed. This distribution can affect the overall cost of ownership, particularly for those considering a purchase.

In terms of colour preference, silver is the most popular choice, with 356 vehicles in this shade, followed by black (192), blue (80), white (76), and red (65). This variety may appeal to different aesthetic preferences among buyers.

Data accuracy is based on the latest available statistics and may vary. Always consult with a professional for the most current information.

Alternative Models to Consider

If you're considering the Mercedes-Benz SLK, there are several alternative models that may also meet your needs. Each of these alternatives offers a unique blend of performance, style, and features, making them worthy of your attention.

One option is the BMW Z4, a sporty roadster that provides a thrilling driving experience. Known for its sharp handling and powerful engine options, the Z4 is a strong competitor in the compact luxury convertible segment. Additionally, the Audi TT offers a stylish design and a well-appointed interior, making it a popular choice among enthusiasts.

For those seeking a more practical option, the Porsche Boxster combines performance with everyday usability. Its mid-engine layout ensures excellent balance and agility, while the cabin is designed for comfort and luxury. Another alternative is the Nissan 370Z, which offers a more affordable entry into the sports car market without compromising on performance.

When considering these alternatives, it's important to note the SLK's MOT pass rate of 81.7%, which indicates a relatively reliable vehicle. However, common failures such as issues with brakes (138 failures) and tyres (106 failures) should be taken into account when evaluating the SLK's long-term ownership costs.

In terms of fuel type, the SLK has a distribution of 658 petrol and 170 diesel models, catering to different preferences. The colour distribution also shows a preference for silver (356 vehicles), followed by black (192) and blue (80), which may influence your choice based on aesthetics.

Ultimately, while the Mercedes-Benz SLK is a compelling option, exploring alternatives like the BMW Z4, Audi TT, Porsche Boxster, and Nissan 370Z can provide you with a broader perspective on what the market has to offer.

Disclaimer: The data presented is based on available statistics and may not reflect the most current market conditions. Always verify details with a trusted source.

Frequently Asked Questions

Frequently Asked Questions

What years was the Mercedes-Benz SLK produced?

The Mercedes-Benz SLK was produced from 1997 to 2016, covering a range of model years including 1997, 1998, 1999, and so on, up to 2016.

How many Mercedes-Benz SLK vehicles are currently registered in the UK?

As of now, there are 828 registered Mercedes-Benz SLK vehicles in the UK.

What is the MOT pass rate for the Mercedes-Benz SLK?

The MOT pass rate for the Mercedes-Benz SLK stands at 81.7%, indicating a relatively high level of roadworthiness among these vehicles.

What are the common reasons for MOT failures?

The most common reasons for MOT failures in the SLK include issues related to brakes (138 failures), tyres (106 failures), and lighting (101 failures). Additionally, suspension problems accounted for 100 failures, while other categories contributed to 202 failures.

What fuel types are available for the Mercedes-Benz SLK?

The Mercedes-Benz SLK is available in both petrol and diesel variants, with petrol models being more prevalent at 658 units compared to 170 diesel units.

What colours are most common for the Mercedes-Benz SLK?

The most common colour for the SLK is silver, with 356 registered vehicles. Other popular colours include black (192), blue (80), white (76), and red (65).

What is the average annual mileage for the Mercedes-Benz SLK?

The average annual mileage for the Mercedes-Benz SLK is approximately 3,110 miles.

Disclaimer: The data presented here is based on current statistics and may be subject to change. For the most accurate and up-to-date information, please consult official sources.

Data Source: This guide is based on analysis of extensive UK vehicle database in our database, including MOT test results and DVLA records.

Disclaimer: This information is provided for guidance only and is based on historical data in our database. Always verify current vehicle details with official sources and get a professional inspection before purchase.

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