Help with (C service question)

[Lotus Lewis]

sorry this has probably been talked about before but my 2002 car will need its C service in the beginning of next year so i was just looking at costs and i found this....

Service A: £182.31 +VAT
Service B: £231.18 +VAT
Service C: £406.18 +VAT (Without cambelt)
Service C: £523.00 +VAT (With cambelt)

what i don't understand is that there is two C services with or with out the cam belt ,i thought the C service was the main one, where they changing the cam belt why would you have a C service and not have the belt changed

is this because even though its time for the C service the cam belt might not need to be changed

[Paul RN]

Yes and no. Cambelt change is required every 4 years, regardless of which service that falls on.

It used to be on the C service which is every 6 years but Lotus reduced the interval.