MERCEDES-BENZ (R171) SLK 300
Lowest Price: £3,500 • Median Price: £14,972 • Highest Price: £25,011 • Sell-Through Rate: 86%
Image Source: Mecum
£3,500
LOWEST PRICE:
SINCE 2020
£14,972
MEDIAN PRICE:
SINCE 2020
HIGHEST PRICE:
£25,011
SINCE 2020
NUMBER OF SOLD CARS:
18
ALL TIME
SELL THROUGH RATE:
86%
ALL TIME
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THE PRICE TREND
See how the price for this model has varied since records began
A dot is a sale. The blue line is the trend line. The sliders adjust the axis
HOW MANY REMAIN
See how many Mercedes-Benz (R171) SLK 300 remain on UK roads
CARS
LICENSED
271
CARS
SORN
24
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THE SALES
See recent matching listings to your search
Mecum
£12,243
29th Oct 2025
2010 Mercedes-Benz SLK300 Convertible
Collecting Cars
£13,937
30th Jul 2024
2010 Mercedes-Benz (R171) SLK 300 – 15,783 km
Bring A Trailer
£12,004
7th Dec 2023
39k-Mile 2009 Mercedes-Benz SLK300
Bring A Trailer
£8,239
4th Jul 2025
2009 Mercedes-Benz SLK300
Bring A Trailer
Not Sold
9th May 2024
33k-Mile 2009 Mercedes-Benz SLK300
Mecum
£12,797
11th Nov 2023
2011 Mercedes-Benz SLK300 Convertible
Bring A Trailer
£20,502
21st May 2025
2009 Mercedes-Benz SLK300
Bring A Trailer
£22,370
24th Jan 2024
1,900-Mile 2010 Mercedes-Benz SLK300 6-Speed
Bring A Trailer
£25,011
27th Sep 2023
28k-Mile 2009 Mercedes-Benz SLK300
Mathewsons
£3,500
13th Mar 2025
2010 MERCEDES-BENZ SLK300 AUTO
Mecum
£11,032
14th Jan 2024
2010 Mercedes-Benz SLK300 Convertible
Mecum
£22,063
9th Jul 2023
2009 Mercedes-Benz SLK300 Convertible
THE FAQs
The frequently asked questions about this model
Tell Me More
The Mercedes-Benz SLK 300 (R171) was produced between 2009 and 2011. It featured a 3.0-liter V6 engine.
The R171 SLK succeeded the R170.
The successor was the R172 SLK, later renamed SLC.
Did you know the R171 SLK pioneered the Airscarf system? It blows warm air onto the neck of the occupants, allowing for open-top driving even in cooler weather.
How much is a Mercedes-Benz (R171) SLK 300 worth?
In average condition, a Mercedes-Benz (R171) SLK 300 is worth £14,972.
What is the most expensive Mercedes-Benz (R171) SLK 300 to sell in history publicly?
The most expensive Mercedes-Benz (R171) SLK 300 to sell in history was sold for £25,011.
What is the cheapest Mercedes-Benz (R171) SLK 300 to sell in history publicly?
The cheapest Mercedes-Benz (R171) SLK 300 to sell in history was sold for £3,500.
When was the Mercedes-Benz (R171) SLK 300 produced?
The Mercedes-Benz (R171) SLK 300 was produced between 2009 and 2011.