Im sure it will be fine matey, and now you will be in SWBO's good books 
Oh i`ll be reminding her of this for years to come...
SWMBO comes in Friday 10pm - "car is sick" she says - so quick, in the dark-under bonnet check, coolant, oil etc fine so no oil cooler failure or anything untowards....Test drive immediatley tells me its misfiring.
Saturday instead of planned work on Vectra I strip down the breaker omega KNOWING it had new dis pack and it would be same one. Job from start to finish took me 24 hours - rain stopped play yesterday.
MEANTIME - She gets the 3.0 MV6 to play with, now its covered in bloody straw from the stables, she gets dinner bought last night for her by the mechanic, she gets free dis pack, free labour charges, a coolant top up, screen wash top up, oil change, car wash & hoover & polished BEFORE i drop it at her work today ( thus reclaiming the MV6 ;)0 JEEZE she even got a free Magic Tree.....
Beat That Vauxhall

Her response....."yeah seems fine now thanks hun

Yup - she will be reminded, often and frequently