I would suggest rather than wait for next service get it looked at now before it does more damage. Better to pay for damage now than be ignorant and have no car at all.
Reason i say this is because my car had an oil leak in it and i didn't think much of it at first, possibly front seal not... well umm... sealing stuff... so neways got it looked at and they found out that it had been in a major accident (previous owner) and the main gear and crankshaft were badly damaged, timing belt was slightly tuned and one of the camshafts was out of time. They said if i had left it any longer the gear could have seperated and reeked havoc on the rest of the engine.
So yeah, book it in tommorow. Thats my advice
