Never Again! ServicingStop quote a low price for a full service then present you with a large bill for additional items which they say aren't included such as oil change, coolant change and brake fluid change!!!! Would have been cheaper to go directly to Mercedes ! Will definitely not use them again!! Don't just take my word for it - check out the website at reviews-co-uk.
In an attempt to take down this review ServicingStop have even tried to claim that they don't recognise me as a customer. Odd that they didn't have that problem when I paid them £301. (My customer order invoice number was 671036 if SS want to look it up!)