Scuff of creams

I would welcome and appreciate your advice on how to remedy three grazed areas on the backrest and head restraint of the black leather passenger seat on an 18-month old Mercedes. This damage is in the form of some sort of abrasion resulting in whitened grazed areas when viewed in direct light, perhaps caused by a child seat?

Asked on 5 February 2011 by DH, via email

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