Bought a 2017 Mazda 6 from Manchester with a faulty differential. Took car in to be fixed at Warrington was told it was 4 loose wheel nuts?!?! Absolute rubbish! Had the car in a proper garage 10 days prior to carshoo looking at it and was told it was the differential. 3 weeks later back in the carshop Warrington on a Saturday had to ring customer services at half 5 for an update. Had to ring them back again Sunday after being promised I would gear from someone?? Diagnosis - Car has a faulty differential, who would have guessed? Had to take spare key to pick my car up as they had locked mine in a safe box and gone home for the weekend. Told car is safe to drive until they book it in at a specialist and they have no courtesy cars available. Still haven't had anyone ring me to fix my car, phone branches you get put through to customer services who don't do anything useful.