Mercedes-Benz SL-Class Convertible (2012 -) Costs Review by Parkers on 16 Mar 2012 Last Updated: 04 Apr 2017 4 Sporty, elegant and stylish, the Mercedes-Benz SL has a lot of appeal. Then again, there are hardly any shrinking violets in this sector. Summary Driving & Performance Equipment Comfort Costs Safety & Reliability Buying & Selling Owners' Reviews Also Consider Facts & Figures Road Tests (5) Gallery 3 out of 5 Running costs If you have the sort of money to indulge in an SL then you won't be too concerned about the running costs. The most frugal version is the SL 350, which is claimed to return 41.5mpg on average. The SL will be fairly expensive to insure while parts and servicing costs will be high. * based on most recent data Estimated fuel cost for 10,000 miles per year Unleaded £1,201 - £2,036 * Diesel £1,652 - £1,652 * The estimated fuel cost figure is a guide to how much this model will cost to fuel each year, so you can compare between cars. It's calculated by using the model's average mpg (calculated from both town centre and motorway driving) and the average fuel price. It's based on the following cost-per-litre: petrol 103p and diesel 109p. Prices are updated daily. Summary Running Costs Servicing period Three years/60,000 miles Warranty Variable Road tax (12 months) £240.00 - £580.00 Vehicle excise duty (VED) varies according to the CO2 emissions and the fuel type of the vehicle. For cars registered after March 1st 2001 VED or road tax is based on the car's CO2 emissions. For cars registered before March 1st 2001 it is based on engine size. Full running costs data 3 out of 5 Green credentials < 100A 101 - 110B 111 - 120C 121 - 130D 131 - 140E 141 - 150F 151 - 165G 166 - 175H169 176 - 185I 186 - 200J 201 - 225K 226 - 255L 256+M279 CO2 emission figure (g/km) Fuel economy rating The arrows indicate the best and worst CO2 bands for this model. Emissions summary If you have a green conscience then the cleanest version of the SL is the 350. It emits 159g/km of CO2, which is not too shabby for a sporty convertible with a V6 engine. Find the exact engine and CO2 Back to: Comfort Continue to: Safety & Reliability Car Valuations Find used car prices with Parkers accurate car valuations. Find out more Mercedes-Benz SL-Class cars for sale We have 37 models like this for sale. Find Mercedes-Benz SL-Class cars for sale