For conditioning leather you can Lexol. You can find this at any good auto parts store. The best way to do it is to park the car in the sun, close up the windows and soak the living daylights out of the seats with conditioner. The heat will make the leather pores open up and what ever the leather needs from the conditioner, it will take in. Let the stuff sit for a good long while, then wipe off the excess with a towel. I did this with my newly acquired SL and it softened up the leather.


As for a service manual goes. The easiest one to get is a Haynes manual. You can find this at any Pepboys, Autozone etc. It should run you about $15. Other than that your only choice is a factory service manual on CD. Generally it costs $115, but you find them on E-bay for less.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member